Multistage filtering device for barium chloride liquid

Abstract

The utility model discloses a multi-stage filtering device for barium chloride liquid, and relates to the technical field of multi-stage filtering of the barium chloride liquid. A spiral flow deflector is arranged on the inner wall of the liquid conveying pipeline, the top of the spiral flow deflector is installed on the inner wall of the liquid conveying pipeline through at least two installation structures, and a gap exists between the bottom of the spiral flow deflector and the axis of the liquid conveying pipeline. The mounting structure comprises an annular fixing ring and a plurality of supporting rods movably connected with the annular fixing ring, the annular fixing ring is arranged on the inner wall of the liquid conveying pipeline, and the supporting rods are evenly distributed along the annular fixing ring. The ends, away from the annular fixing ring, of the multiple supporting rods are connected with different positions of the top of the spiral flow deflector correspondingly. The spiral drainage piece is stably arranged through the installation structure, disassembly is easy, turbulent flow and vortex can be effectively reduced, flowing is more stable, and the blocking risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of barium chloride liquid multi-stage filtration technology, and in particular to a barium chloride liquid multi-stage filtration device. Background Technology

[0002] Multi-stage filtration systems for barium chloride liquids are primarily used for the efficient filtration and purification of liquids containing barium chloride, and are widely applied in chemical, pharmaceutical, environmental protection, and water treatment industries. Their main applications include: effectively removing solid particles, suspended solids, and other impurities from liquids through multi-stage filtration, thereby improving liquid purity; separating harmful substances or byproducts from barium chloride solutions in chemical production to ensure product quality; removing barium chloride and other pollutants from wastewater in wastewater to meet discharge standards and reduce environmental pollution; and reducing equipment clogging and downtime through continuous filtration, thus improving production efficiency and extending equipment lifespan.

[0003] This device typically consists of multi-stage filters, a filter press, liquid transfer pipelines, and flow guiding devices. It achieves efficient liquid purification and resource recovery through a combination of physical filtration and chemical treatment. The filter press is the core equipment of this system, and the performance of its liquid transfer pipelines directly affects filtration efficiency and product quality.

[0004] Existing filter press liquid transfer pipelines typically employ a straight pipe structure, which has the following drawbacks: Uneven liquid flow velocity: The straight pipe structure easily leads to uneven liquid velocity distribution within the pipe, with slower flow near the pipe wall and faster flow in the center, affecting the filtration effect; Prone to eddies: The straight pipe structure easily generates eddies when the liquid flow direction changes, causing energy loss and reducing filtration efficiency; Prone to pipe blockage: The straight pipe structure is not conducive to the discharge of impurities, easily causing pipe blockage and increasing maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage filtration device for barium chloride liquid, so as to solve the problems of uneven liquid flow rate, easy generation of eddies and easy blockage of the liquid transmission pipeline in the existing multi-stage filtration device for barium chloride liquid.

[0006] A multi-stage filtration device for barium chloride liquid includes a liquid transmission pipeline. A spiral guide vane is disposed on the inner wall of the liquid transmission pipeline. The spiral guide vane has a triangular cross-section and extends spirally along the axial direction of the inner wall of the liquid transmission pipeline. The top of the spiral guide vane is mounted on the inner wall of the liquid transmission pipeline via a mounting structure. A gap exists between the bottom of the spiral guide vane and the axis of the liquid transmission pipeline.

[0007] The installation structure includes at least two components, each comprising an annular fixing ring and a support rod movably connected to the annular fixing ring. The annular fixing ring is disposed on the inner wall of the liquid transmission pipeline, and multiple support rods are provided. The multiple support rods are evenly distributed along the annular fixing ring, and the ends of the multiple support rods away from the annular fixing ring are respectively connected to different positions on the top of the spiral guide vane.

[0008] This invention utilizes a simple and reliable installation structure to stably install a spiral guide vane inside a liquid transmission pipeline. An annular fixing ring secures one end of a support rod to the inner wall of the pipeline. Multiple support rods are evenly distributed along the annular fixing ring. The other end of the support rods restricts different positions of the top of the spiral guide vane to the inner wall of the pipeline. This ensures the continuous spiral structure of the spiral guide vane extends axially along the pipeline and is stably fixed, guaranteeing uniform stress distribution within the spiral guide vane and preventing localized stress concentration.

[0009] This invention, through the installation of a structurally stable spiral guide plate, effectively guides barium chloride liquid along a spiral path within the liquid transmission pipeline, reducing turbulence and eddies. Simultaneously, it ensures a more uniform distribution of the barium chloride liquid across the pipeline cross-section, avoiding excessively slow flow near the pipe wall and excessively fast flow in the center, resulting in smoother flow. Furthermore, the spiral flow of barium chloride liquid within the pipeline carries away impurities, preventing their deposition on the pipeline's inner wall and reducing the risk of blockage.

[0010] The spiral guide vane is a continuously extending spiral structure with a triangular cross-section. Specifically, the top of the spiral guide vane near the inner wall of the liquid transfer pipe forms the base of the triangle, while the apex of the triangle is close to the central axis of the liquid transfer pipe. This triangular cross-sectional shape provides high structural stability, enabling it to withstand significant liquid pressure and resist deformation. The base of the triangle connects to the support rod, increasing the contact area between the support rod and the top of the spiral guide vane, resulting in a stronger connection and effectively supporting the guide vane, preventing it from vibrating or detaching due to liquid impact. The near-streamlined shape of the triangle effectively reduces liquid flow resistance and energy loss. The apex of the triangle guides the liquid to flow in a specific direction, reducing turbulence and eddies, and improving liquid transfer efficiency. The spiral guide vane can be manufactured from corrosion-resistant materials such as stainless steel.

[0011] The gap between the spiral guide vane and the central axis of the pipe is 5% to 10% of the pipe diameter. This gap can reduce flow resistance, distribute the flow velocity evenly, guide the liquid to form a spiral flow, reduce stress concentration, prevent vibration, and improve the service life of the guide vane.

[0012] The number and distribution of installation structures directly affect the installation effect of the spiral guide vanes and the uniformity of barium chloride liquid flow within the pipeline. At least two installation structures are required, suitable for shorter pipelines, located at either end of the spiral guide vanes, or installed on the inner walls of the inlet and outlet of the liquid transmission pipeline. If the pipeline is too long, one or more installation structures can be added inside the pipeline to prevent deformation or vibration of the spiral guide vanes due to excessive length; the specific method should be determined based on the actual situation.

[0013] Furthermore, a protrusion is provided at the top of the support rod, the radial dimension of which is larger than the radial dimension of the support rod body. The protrusion is used to restrict one end of the support rod onto the annular fixing ring.

[0014] A protrusion is provided at the top of the support rod. The radial dimension of the protrusion is larger than the radial dimension of the support rod body. The movement of the support rod is restricted to the annular fixing ring by the protrusion.

[0015] Furthermore, the outer periphery of the annular fixing ring is uniformly provided with multiple through grooves along the axial direction of the liquid transmission pipe, and the size of the through grooves is adapted to the size of the support rod body.

[0016] A through groove is made around the annular fixing ring, with open ends at both ends along the axial direction of the liquid transmission pipe. The support rod is embedded in the through groove, and a protrusion is engaged at one of the open ends of the through groove away from the spiral guide vane, thus fixing the annular fixing ring to the inner wall of the liquid transmission pipe. At this point, the radial direction of the support rod is restricted by the annular fixing ring and the inner wall of the liquid transmission pipe, and it fits tightly against the liquid transmission pipe. The axial direction of the support rod is restricted by the protrusion on the annular fixing ring. This tight multi-directional restraint increases the stability of the support rod within the annular fixing ring.

[0017] Furthermore, an annular groove is formed on the inner wall of the inlet of the liquid transmission pipe along the radial direction of the liquid transmission pipe. The side of the annular groove near the inlet of the liquid transmission pipe is an open end. The annular groove is adapted to the size of the annular fixing ring. The annular fixing ring is embedded in the annular groove and bolted to the bottom of the annular groove.

[0018] An annular groove is made inside the transmission pipe, so that the outer part of the annular fixing ring is embedded in the annular groove. One side of the groove wall of the annular groove plays a limiting role for the annular fixing ring. This can increase the impact resistance of the annular fixing ring when the barium chloride liquid flows, and prevent the connection between the annular fixing ring and the liquid transmission pipe from loosening due to impact force, which would affect the normal operation of the spiral guide vane.

[0019] Furthermore, the annular fixing ring has multiple threaded through holes evenly formed along its radial direction, and the bottom of the annular groove has multiple threaded grooves. The bottom of the bolt passes through the threaded through holes and is threadedly connected to the threaded grooves.

[0020] Bolts are used to connect the annular retaining ring and the inner wall of the liquid conveying pipeline to the threaded connection. This connection can withstand greater tensile and shear forces, and the evenly distributed threaded connection makes the annular retaining ring more evenly stressed, ensuring the long-term stability of the connection.

[0021] Furthermore, the threaded through hole is located between two adjacent through slots.

[0022] The threaded hole is set between two adjacent through slots, which can strengthen the limiting effect of the through slot on the annular fixing ring on the support rod, make the fit between the support rod and the liquid transmission pipeline tighter, and ensure that the support rod is not easily displaced in the radial direction of the liquid transmission pipeline.

[0023] Furthermore, the rotation angle of the spiral guide vane is 30°~60°.

[0024] The smaller the helix angle of the spiral guide vane, the slower the spiral guide vane extends in the axial direction. For pipes of the same length, more installation structures are needed to fix it to ensure the stability of the spiral guide vane. Considering cost and structural practicality, the rotation angle of the spiral guide vane in this invention is selected as 30°~60°.

[0025] Furthermore, the end of the support rod away from the annular fixing ring is fixedly connected to the top of the spiral guide vane. This fixed connection secures the spiral guide vane close to the inner wall of the pipe, increasing the strength of the connection and providing stable support between the annular fixing ring, the support rod, and the spiral guide vane. The method of fixed connection includes, but is not limited to, welding.

[0026] Beneficial effects of this utility model

[0027] 1. This utility model uses an installation structure composed of an annular fixing ring and support rods to fix the spiral guide vane to the inner wall of the liquid transmission pipeline. Multiple support rods evenly distributed on the annular fixing ring can ensure that the fixed parts of the spiral guide vane are subjected to uniform force, avoiding local stress concentration. The spiral guide vane, placed inside the pipeline, can guide the liquid to flow in a spiral direction, making the liquid distribution in the pipeline more uniform, improving the filtration effect, effectively reducing the eddies generated when the liquid flow direction changes, reducing energy loss, improving filtration efficiency, and reducing the risk of pipeline blockage.

[0028] 2. The fixing structure of this utility model detachably fixes the spiral guide plate to the inner wall of the liquid transmission pipeline, and uses bolts to connect the annular fixing ring and the inner wall of the liquid transmission pipeline respectively. It can withstand large tensile and shear forces, and the evenly arranged threaded connection makes the annular fixing ring more uniformly stressed, ensuring the long-term stability of the connection. The structure is simple and easy to disassemble, has strong reliability, is easy to process and manufacture, has low cost, and is easy to promote and apply. Attached Figure Description

[0029] Figure 1 This is a schematic cross-sectional view of the structure of this utility model;

[0030] Figure 2 This is an enlarged view of section A of this utility model;

[0031] Figure 3 This is a schematic diagram of the connection structure of this utility model;

[0032] Figure 4 This is a cross-sectional view of the annular fixing ring structure of this utility model;

[0033] Reference numerals: 1-Liquid transfer pipe, 2-Spiral guide vane, 3-Annular fixing ring, 4-Protrusion, 5-Support rod, 6-Annular groove, 7-Bolt, 8-Through groove, 9-Threaded through hole. Detailed Implementation

[0034] Example 1: As Figure 1 As shown, a multi-stage filtration device for barium chloride liquid includes a liquid transmission pipe 1. A spiral guide vane 2 is disposed on the inner wall of the liquid transmission pipe 1. The spiral guide vane 2 has a triangular cross-section and extends spirally along the axial direction of the inner wall of the liquid transmission pipe 1. The top of the spiral guide vane 2 is mounted on the inner wall of the liquid transmission pipe 1 via a mounting structure. A gap exists between the bottom of the spiral guide vane 2 and the axis of the liquid transmission pipe 1.

[0035] The installation structure includes at least two components, each comprising an annular fixing ring 3 and a support rod 5 movably connected to the annular fixing ring 3. The annular fixing ring 3 is disposed on the inner wall of the liquid transmission pipeline 1. Multiple support rods 5 are provided and are evenly distributed along the annular fixing ring 3. The ends of the multiple support rods 5 away from the annular fixing ring 3 are respectively connected to different positions on the top of the spiral guide vane 2.

[0036] This invention uses an installation structure to install the spiral guide vane 2 inside the liquid transmission pipeline 1. Multiple support rods 5 are evenly distributed along an annular fixing ring 3. The annular fixing ring 3 fixes one end of each support rod 5 to the inner wall of the liquid transmission pipeline 1, while the other end of each support rod 5 restricts different positions of the top of the spiral guide vane 2 to the inner wall of the liquid transmission pipeline 1. The stable connection formed by the annular fixing ring 3, the support rods 5, and the spiral guide vane 2 ensures that the continuous spiral structure of the spiral guide vane 2 extends axially along the pipeline and is stably fixed, ensuring uniform stress distribution within the pipeline and avoiding localized stress concentration.

[0037] The spiral guide vane 2 has a continuously extending spiral structure. The cross-section of the spiral guide vane 2 is triangular, meaning the portion of the spiral guide vane 2 closest to the inner wall of the liquid transfer pipe 1 forms the base of the triangle, and the vertex of the triangle is close to the central axis of the liquid transfer pipe 1. The base of the triangle connects to the support rod 5, increasing the contact area between the support rod 5 and the top of the spiral guide vane 2, making the connection more secure and effectively supporting the guide vane, preventing it from vibrating or falling off due to liquid impact.

[0038] The number and distribution of the installation structures directly affect the installation effect of the spiral guide vane 2 and the uniformity of the barium chloride liquid flow in the pipeline. At least two installation structures are provided, which is suitable for short pipelines. They are located at both ends of the spiral guide vane 2, or installed on the inner walls of the inlet and outlet of the liquid transmission pipeline 1.

[0039] In a 1.5-meter liquid transmission pipeline 1, the spiral angle of the spiral guide vane 2 is selected as 45°. The gap between the bottom of the spiral guide vane 2 and the bottom of the liquid transmission pipeline 1 is 8% of the pipeline diameter. An installation structure is installed at each of the two ends of the pipeline, with three support rods 5. The end of each support rod 5 away from the annular fixing ring 3 is fixedly connected to the top of the spiral guide vane 2. The three support rods 5 are then evenly arranged along the annular ring and fixed to the annular fixing ring 3. Finally, the annular fixing ring 3 is fixed to the inner wall of the liquid transmission pipeline 1. If the pipeline is too long, one or more installation structures can be added inside the pipeline to prevent the spiral guide vane 2 from deforming or vibrating due to excessive length. The specific installation structure can be determined according to the actual situation.

[0040] This invention features a spiral guide plate with a stable installation structure that is easy to disassemble and effectively reduces the generation of turbulence and eddies. It also makes the barium chloride liquid more evenly distributed across the pipe cross-section, resulting in smoother flow. The spiral flow can carry impurities along with the liquid, preventing them from depositing on the inner wall of the pipe and reducing the risk of blockage.

[0041] Example 2: Based on Example 1, such as Figure 1-4As shown, a protrusion 4 is provided on the top of the support rod 5. The radial dimension of the protrusion 4 is larger than the radial dimension of the support rod 5. The protrusion 4 is used to restrict one end of the support rod 5 onto the annular fixing ring 3. A plurality of through grooves 8 are uniformly formed on the outer periphery of the annular fixing ring 3 along the axial direction of the liquid transmission pipe 1. The size of the through grooves 8 is adapted to the size of the support rod 5.

[0042] Three through grooves 8 are evenly distributed around the annular fixing ring 3 along the annular structure. The through grooves 8 are arranged along the axial direction of the liquid transmission pipe 1. A protrusion 4 is provided at one end of the support rod 5. The size of the protrusion 4 is larger than the size of the support rod 5. The size of the support rod body is adapted to the internal size of the through groove 8, thus confining the support rod 5 within the through groove 8. The support rod 5 is confined to the annular fixing ring 3 along the axial direction of the liquid transmission pipe 1 by the protrusion 4. The protrusion 4 is engaged at the end of the through groove 8 away from the spiral guide plate 2, thus fixing the annular fixing ring 3 to the inner wall of the liquid transmission pipe 1. The three support rods 5 are evenly distributed around the annular fixing ring 3. The radial direction of the support rod 5 is confined to the annular fixing ring 3 and the inner wall of the liquid transmission pipe 1, and it fits tightly against the liquid transmission pipe 1. The axial direction of the support rod 5 is confined to the annular fixing ring 3 by the protrusion 4. This tight multi-directional confinement increases the stability of the support rod 5 within the annular fixing ring 3.

[0043] Example 3: Based on Example 1, such as Figure 1-4 As shown, an annular groove 6 is radially formed on the inner wall of the liquid transmission pipe 1. The side of the annular groove 6 near the inlet of the liquid transmission pipe 1 is open. The annular groove 6 is sized to match the annular fixing ring 3. The annular fixing ring 3 is embedded in the annular groove 6 and connected to the bottom of the annular groove 6 by a bolt 7. Multiple threaded through holes 9 are evenly formed radially on the annular fixing ring 3. Multiple threaded grooves are formed at the bottom of the annular groove 6. The bottom of the bolt 7 passes through the threaded through holes 9 and is threadedly connected to the threaded grooves. The threaded through holes 9 are located between two adjacent through grooves 8.

[0044] An annular groove 6 is formed on the inner wall at the inlet of the liquid transmission pipeline 1. The side of the annular groove 6 closest to the inlet of the liquid transmission pipeline 1 is open, allowing the outer part of the annular fixing ring 3 to be embedded in the annular groove 6. The side wall of the annular groove 6 serves to limit the movement of the annular fixing ring 3. Threaded holes are provided between two adjacent through slots 8, and bolts 7 are used to thread the annular fixing ring 3 to the inner wall of the liquid transmission pipeline.

[0045] The liquid transmission pipeline 1 is 1.2m long. The spiral angle of the spiral guide vane 2 is 30°. The gap between the bottom of the spiral guide vane 2 and the bottom of the liquid transmission pipeline 1 is 10% of the pipeline diameter. An installation structure is installed at each of the two ends of the pipeline, with three support rods 5. The end of each support rod 5 away from the annular fixing ring 3 is fixedly connected to the top of the spiral guide vane 2. The three support rods 5 are then evenly arranged along the ring and fixed to the annular fixing ring 3. An annular groove 6 is radially formed on the inner wall of the inlet of the liquid transmission pipeline 1, with the side of the groove near the port being the open end. The end of the annular fixing ring 3 near the spiral guide vane 2 is placed against the inner wall of the annular groove 6. Finally, the annular fixing ring 3 is fixed to the inner wall of the liquid transmission pipeline 1 with bolts 7. The annular fixing ring 3 at the outlet of the liquid transmission pipeline 1 can be directly fixed to the inner wall of the liquid transmission pipeline 1 with bolts 7.

Claims

1. A liquid multi-stage filtering device for barium chloride, comprising a liquid transfer pipe (1), characterized in that, The liquid conveying pipeline (1) is provided with a spiral guide vane (2) on the inner wall of the liquid conveying pipeline (1), the cross section of the spiral guide vane (2) is triangular, the spiral guide vane (2) extends along the axial direction of the inner wall of the liquid conveying pipeline (1), the top of the spiral guide vane (2) is mounted on the inner wall of the liquid conveying pipeline (1) through a mounting structure, and a gap exists between the bottom of the spiral guide vane (2) and the axis of the liquid conveying pipeline (1), Wherein, the mounting structure is provided with at least two, the mounting structure comprises an annular fixing ring (3) and a support rod (5) movably connected with the annular fixing ring (3), the annular fixing ring (3) is arranged on the inner wall of the liquid conveying pipeline (1), the support rod (5) is provided with a plurality of, the plurality of support rods (5) are uniformly distributed along the annular fixing ring (3), and the ends of the plurality of support rods (5) away from the annular fixing ring (3) are respectively connected with different positions of the top of the spiral guide vane (2).

2. The barium chloride liquid multi-stage filtering device according to claim 1, characterized in that, The top of the support rod (5) is provided with a protruding block (4), the radial dimension of the protruding block (4) is greater than the radial dimension of the rod body of the support rod (5), and the protruding block (4) is used for limiting one end of the support rod (5) on the annular fixing ring (3).

3. The barium chloride liquid multi-stage filtering device according to claim 2, characterized in that, A plurality of through grooves (8) are uniformly arranged on the outer periphery of the annular fixing ring (3) along the axial direction of the liquid conveying pipeline (1), and the size of the through groove (8) is matched with the size of the rod body of the support rod (5).

4. The barium chloride liquid multi-stage filtering device according to claim 3, characterized in that, An annular groove (6) is arranged on the inner wall of the inlet of the liquid conveying pipeline (1) along the radial direction of the liquid conveying pipeline (1), one side of the annular groove (6) close to the inlet of the liquid conveying pipeline (1) is an open end, the size of the annular groove (6) is matched with the size of the annular fixing ring (3), the annular fixing ring (3) is embedded in the annular groove (6) and connected with the bottom of the annular groove (6) through a bolt (7).

5. The barium chloride liquid multi-stage filtration apparatus according to claim 4, wherein, A plurality of threaded holes (9) are uniformly arranged on the annular fixing ring (3) along the radial direction of the annular fixing ring (3), a plurality of threaded grooves are arranged on the bottom of the annular groove (6), and the bottom of the bolt (7) is threadedly connected with the threaded grooves after penetrating through the threaded holes (9).

6. The barium chloride liquid multi-stage filtration apparatus according to claim 5, wherein, The threaded holes (9) are located between adjacent two through grooves (8).

7. The barium chloride liquid multi-stage filtration apparatus according to claim 1, wherein, The rotation angle of the spiral guide vane (2) is 30°-60°.

8. The barium chloride liquid multi-stage filtration apparatus of claim 1, wherein, The end of the support rod (5) away from the annular fixing ring (3) is fixedly connected with the top of the spiral guide vane (2).

Images