Hollow fiber experimental line for water treatment

Abstract

This utility model discloses a hollow fiber experimental line for water treatment, comprising a frame on which a stirring vessel and a spinneret assembly are mounted. A lifting and positioning assembly is located on one side of the spinneret assembly. Along the receiving direction, the frame sequentially includes a primary gel tank, a secondary gel tank, and a take-up assembly. Guide roller assemblies are installed on both the primary and secondary gel tanks. This utility model features a compact structure with tight connections between all components. During use, fibers are spun through a spinneret, solidifying sequentially in the primary and secondary gel tanks in a water bath, and then transported to the take-up assembly for collection using guide rollers. The lifting and positioning assembly allows adjustment of the distance between the spinneret and the primary gel tank to adapt to different experimental requirements. A fan assembly effectively removes waste gas generated during the water bath fiber spun process, preventing potential harm to experimental personnel.

Description

Technical Field

[0001] This utility model belongs to the field of membrane technology, specifically relating to a hollow fiber experimental line for water treatment. Background Technology

[0002] In the field of water treatment technology, hollow fiber membranes are widely used in various water treatment processes, such as reverse osmosis, ultrafiltration, and nanofiltration, due to their unique structural advantages, such as high specific surface area, good filtration performance, and ease of cleaning and regeneration. For the research and optimization of hollow fiber membrane performance, laboratory-scale hollow fiber experimental lines are particularly important. They not only help researchers quickly verify the performance of membrane materials but also allow for the exploration of optimal production conditions by adjusting process parameters.

[0003] However, existing hollow fiber experimental lines have certain limitations in design and function. On the one hand, some experimental lines lack a flexible spinneret height adjustment mechanism, making it difficult to adapt to different experimental needs by adjusting the spinneret distance. On the other hand, the design of the gelation tank and take-up assembly is often not precise enough, leading to problems such as fiber breakage and entanglement during coagulation and take-up, affecting the accuracy and repeatability of experimental results. In addition, if the waste gas generated during the experiment is not treated in a timely manner, it may pose a potential threat to the health of the experimental personnel.

[0004] Therefore, it is of great significance to develop a hollow fiber experimental line that is compact in structure, flexible in operation, and has the function of exhaust gas treatment. Utility Model Content

[0005] A hollow fiber experimental line for water treatment includes a frame on which a spinneret assembly for spinning fibers is mounted. The spinneret assembly is connected to a first spinneret tube for introducing membrane solution and a second spinneret tube for introducing core solution. The first spinneret tube is connected to a stirred tank for preparing the membrane solution. A lifting and positioning assembly for driving the spinneret assembly to move up and down is mounted on one side of the spinneret assembly. The frame is arranged sequentially along the receiving direction with a primary gel tank, a secondary gel tank, and a take-up assembly. The primary gel tank is located below the spinneret assembly. Guide roller assemblies for guiding the fibers are mounted on both the primary and secondary gel tanks. Heating components are mounted on the primary gel tank, the secondary gel tank, and the take-up assembly.

[0006] Preferably, the lifting and positioning assembly includes a vertically arranged slide rail and a movable slide seat arranged on the slide rail, and the spinneret assembly is mounted on the slide seat via a fixed seat.

[0007] Preferably, the spinneret assembly includes a spinneret head, which is connected to the first spinneret tube and the second spinneret tube respectively. A positioning plate for positioning the spinneret head is provided below the spinneret head, and the positioning plate is disposed on the fixed base. A clamping block for pressing the spinneret head is provided outside the spinneret head. An ultrasonic sensor is provided on one side of the spinneret head, and the ultrasonic sensor is disposed on the fixed base through the fixed base.

[0008] Preferably, each guide wheel assembly includes a guide wheel and a guide wheel mounting plate connecting the guide wheel, and the plurality of guide wheels are respectively disposed inside and above the primary gel tank and the secondary gel tank.

[0009] Preferably, the take-up assembly includes a take-up water tank and a guide roller rotatably disposed on the take-up water tank. A spray pipe assembly is disposed on one side of the guide roller. The spray pipe assembly includes a spray pipe and a spray pipe bracket for disposing the spray pipe on the take-up water tank.

[0010] Preferably, a guide wire mechanism is provided between the secondary gel tank and the component. The guide wire mechanism includes a linear slide rail and a guide wire slider disposed on the linear slide rail and moving along the linear slide rail. A mounting plate is provided on the guide wire slider, and a guide wire wheel is disposed on the guide wire slider through the mounting plate.

[0011] Preferably, each of the primary gel tank, secondary gel tank, and winding water tank is equipped with a liquid level sensor; each of the primary gel tank, secondary gel tank, and winding water tank has a drain outlet at its bottom, and a drain filter screen is installed on the drain outlet; a drain overflow pipe is connected to the high point of each of the primary gel tank, secondary gel tank, and winding water tank and the drain outlet; a water supply pipe is connected to the low point of each of the primary gel tank, secondary gel tank, and winding water tank; and valves are installed on both the drain overflow pipe and the water supply pipe.

[0012] Preferably, the heating component is a heating rod.

[0013] Preferably, the frame is provided with a fan assembly, which includes an exhaust pipe horizontally disposed above the primary gel tank, the secondary gel tank and the take-up water tank, and a fan connected to the exhaust pipe. The exhaust pipe is provided with a plurality of exhaust ports.

[0014] The beneficial effects of this invention are as follows: By setting up a lifting and positioning component, the distance between the spinneret and the primary gel tank can be easily adjusted to adapt to different spinning conditions under different experimental requirements, improving the flexibility and accuracy of the experiment. The primary and secondary gel tanks, combined with the guide wheel assembly, ensure stable fiber transmission during the coagulation process, avoiding breakage and entanglement. The heating components on the primary, secondary, and take-up water tanks enable temperature control within the tanks, ensuring the stability and consistency of experimental conditions. The fan assembly effectively removes waste gas generated during the water bath fiber filament process, avoiding potential harm to experimental personnel and ensuring a safe and hygienic experimental environment. This invention has a compact structure, with tightly connected components that are easy to disassemble and replace, facilitating operation and maintenance by experimental personnel. Furthermore, the drainage outlet and water supply pipeline facilitate the replacement of the solution within the tanks and the cleaning of the tanks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 yes Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0018] Figure 4 This is a partial structural schematic diagram of the spinneret assembly of this utility model;

[0019] Figure 5 This is a partial structural schematic diagram of the present invention;

[0020] Figure 6 yes Figure 5 A magnified schematic diagram of the partial structure of B in the diagram;

[0021] The components include: frame 1, mixing tank 2, spinneret assembly 3, spinneret head 31, first spinneret tube 32, gear pump 33, positioning orifice plate 34, clamping block 35, ultrasonic sensor 36, fixed bracket 37, beaker 38, second spinneret tube 39, lifting and positioning assembly 4, slide rail 41, slide base 42, fixed base 43, primary gel tank 5, secondary gel tank 6, take-up assembly 7, take-up water tank 71, guide roller 72, guide wheel assembly 8, guide wheel 81, and guide wheel. Mounting plate 82, heating assembly 9, spray pipe assembly 10, spray pipe 101, spray pipe bracket 102, wire guide mechanism 11, linear slide rail 111, wire guide slider 112, wire guide slider 112, mounting plate 113, liquid level sensor 12, drain outlet 13, filter screen 14, drain overflow pipe 15, water supply pipe 16, valve 17, fan assembly 18, exhaust pipe 181, fan 182, exhaust outlet 183, fiber filament 19, constant flow pump 20. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figures 1 to 6 As shown, this utility model provides a hollow fiber experimental line for water treatment, which includes a frame 1. A spinneret 3 for spinning is mounted on the frame 1. The spinneret 3 is connected to a first spinneret tube 32 for introducing membrane solution and a second spinneret tube 39 for introducing core solution (water). The first spinneret tube 32 is connected to a stirred tank 2 for preparing the membrane solution. One of the stirred tanks 2 in this utility model is a spare stirred tank 2. A lifting and positioning component 4 for driving the spinneret 3 to rise and fall is provided on one side of the spinneret 3. The frame 1 is sequentially arranged with a primary gel tank 5, a secondary gel tank 6, and a take-up component 7 along the receiving direction. The primary gel tank 5 is located below the spinneret 3 for solidifying the spun fibers. Guide roller assemblies 8 for guiding the fiber filaments 19 are provided on both the primary gel tank 5 and the secondary gel tank 6. The bottom of the primary gel tank 5, the secondary gel tank 6, and the take-up assembly 7 are all equipped with heating components 9 for heating the solutions in the primary gel tank 5, the secondary gel tank 6, and the take-up assembly 7. The heating component 9 of this invention is a heating rod used to control the water bath temperature.

[0024] The lifting and positioning assembly 4 includes a vertically arranged slide rail 41 and a movable slide block 42 mounted on the slide rail 41. The spinneret assembly 3 is mounted on the slide block 42 via a fixed base 43. The spinneret assembly 3 includes a spinneret head 31. The spinneret head 31 of this invention is an existing structure and can adopt an existing Spinner spinneret head to make the extruded fiber filament 19 have a hollow structure. The spinneret head 31 is connected to a first spinneret tube 32 and a second spinneret tube 39. A gear pump 33 is provided on the first spinneret tube. The spinneret head 31 is connected to the stirring axe 2 through the first spinneret tube 32 and the gear pump 33. A constant flow pump 20 is provided on the second spinneret tube 39, which is used to provide an aqueous solution for forming the hollow fiber filament cavity. A positioning plate 34 for positioning the spinneret head 31 is provided below the spinneret head 31. The positioning plate 34 is mounted on the fixed base 43, and the spinneret head 31 is positioned by being clamped onto the positioning plate 34. The spinneret 31 is externally fitted with a clamping block 35 for pressing it down. An ultrasonic sensor 36 for detecting the spinning solution flow rate is located on one side of the spinneret 31. The ultrasonic sensor 36 is mounted on a fixed base 43 via a fixed bracket 37. The ultrasonic sensor 36 in this invention is a prior art structure, designed to achieve its function. A lifting and positioning assembly 4 is used to adjust the distance between the spinneret 31 and the primary gel tank 5 (air-dry spinning section). In use, the film solution enters the air-dry spinning section through the spinneret 31 and then solidifies in the primary gel tank. This invention can also include a beaker 38 below the spinneret 31 for receiving and threading the fiber filaments 19 when the machine is first started, facilitating subsequent material collection.

[0025] Furthermore, each guide wheel assembly 8 includes a guide wheel 81 and a guide wheel mounting plate 82 connecting the guide wheels 81. Several guide wheels 81 are respectively disposed inside and above the primary gel tank 5 and the secondary gel tank 6. The guide wheels 81 disposed above the primary gel tank 5 and the secondary gel tank 6 are equipped with tension sensors (not shown) for measuring fiber tension. A water receiving tank 20 is disposed below the guide wheels 81 to backflow the solution on the fibers into the tank. The fibers 19 sequentially pass through the guide wheels 81 in the primary gel tank 5 and the secondary gel tank 6 and are transported to the take-up assembly 7 for collection. The tension sensor in this invention is an existing structure, designed to achieve its function.

[0026] Furthermore, the take-up assembly 7 includes a take-up water tank 71 and a guide roller 72 rotatably mounted on the take-up water tank 71. A spray pipe assembly 10 is provided on one side of the guide roller 72. The spray pipe assembly 10 is used to rinse the fiber 19. The spray pipe assembly 10 includes a spray pipe 101 and a spray pipe support 102 that mounts the spray pipe 101 on the take-up water tank 71. The spray pipe 101 has a plurality of spray holes (as shown in the figure) facing the guide roller 72.

[0027] Furthermore, a fiber guiding mechanism 11 is provided between the secondary gel tank 6 and the fiber take-up assembly 7. The fiber guiding mechanism 11 includes a linear slide rail 111 and a fiber guide slider 112 disposed on and moving along the linear slide rail 111. A mounting plate 113 is provided on the fiber guide slider 112, and a fiber guide wheel 81 is mounted on the fiber guide slider 112 via the mounting plate 113. In use, the position of the fiber guide wheel 81 is adjusted by moving the fiber guide slider 112 on the linear slide rail 111 to facilitate the take-up of the fiber 19.

[0028] Level sensors 12 are installed on the primary gel tank 5, the secondary gel tank 6, and the take-up water tank 71. Drain outlets 13 are installed at the bottom of the primary gel tank 5, the secondary gel tank 6, and the take-up water tank 71, and drain filters 14 are installed on the drain outlets 13. Drain overflow pipes 15 are connected to the high points of the primary gel tank 5, the secondary gel tank 6, and the take-up water tank 71 and to the drain outlets 13 to prevent overflow. Water supply pipes 16 are connected to the low points of the primary gel tank 5, the secondary gel tank 6, and the take-up water tank 71 to supply water to the tanks. Valves 17 are installed on both the drain overflow pipes 15 and the water supply pipes 16.

[0029] A fan assembly 18 is installed on the frame 1. The fan assembly 18 includes an exhaust pipe 181 horizontally positioned above the primary gel tank 5, the secondary gel tank 6, and the take-up water tank 71, and a fan 182 connected to the exhaust pipe 181. The exhaust pipe 181 has several exhaust ports 183. The fan assembly 18 is used to remove the waste gas generated by the water bath fiber filaments 19 through the exhaust pipe 181 to prevent injury to personnel.

[0030] In use, the membrane solution is spun through the spinneret 34, and the fibers 19 are sequentially solidified in a water bath in the primary and secondary gelation tanks. The fibers are then transported to the take-up assembly 7 by guide wheels 81 for collection. The lifting and positioning assembly 4 allows for easy adjustment of the distance between the spinneret 31 and the primary gelation tank 5 to adapt to different experimental requirements, improving the flexibility and accuracy of the experiment. The primary and secondary gelation tanks 5 and 6, combined with the guide wheel assembly 8, ensure stable transmission of the fibers 19 during solidification, preventing breakage and entanglement. Simultaneously, the heating assembly 9 on the primary and secondary gelation tanks 5, 6, and the take-up water tank 71 allows for temperature control, ensuring the stability and consistency of experimental conditions. The fan assembly 18 effectively removes waste gas generated during the water bath process, preventing potential harm to personnel and ensuring a safe and hygienic experimental environment. This invention features a compact structure, with tightly connected components that are easy to disassemble and replace, facilitating operation and maintenance for researchers. Meanwhile, the installation of the drain outlet 13 and the water supply pipe 16 also facilitates the replacement of the solution in the tank and the cleaning of the tank.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hollow fiber experimental line for water treatment comprising a rack, characterized in that The frame is equipped with a spinneret assembly for spinning fibers. The spinneret assembly is connected to a first spinneret tube for introducing membrane liquid and a second spinneret tube for introducing core liquid. The first spinneret tube is connected to a stirring tank for preparing the membrane liquid. A lifting and positioning assembly for driving the spinneret assembly to rise and fall is provided on one side of the spinneret assembly. The frame is provided with a primary gel tank, a secondary gel tank and a take-up assembly in sequence along the receiving direction. The primary gel tank is located below the spinneret assembly. Guide roller assemblies for guiding the fibers are provided on both the primary and secondary gel tanks. Heating components are provided on the primary gel tank, the secondary gel tank and the take-up assembly.

2. The hollow fiber experimental line for water treatment according to claim 1, characterized by: The lifting and positioning assembly includes a vertically arranged slide rail and a movable slide block arranged on the slide rail. The spinneret assembly is mounted on the slide block via a fixed base.

3. The hollow fiber experimental line for water treatment according to claim 2, characterized in that: The spinneret assembly includes a spinneret head, which is connected to the first spinneret tube and the second spinneret tube respectively. A positioning plate for positioning the spinneret head is provided below the spinneret head, and the positioning plate is disposed on the fixed base. A clamping block for pressing the spinneret head is provided outside the spinneret head. An ultrasonic sensor is provided on one side of the spinneret head, and the ultrasonic sensor is disposed on the fixed base through the fixed base.

4. The hollow fiber experimental line for water treatment according to claim 1, characterized in that: Each guide wheel assembly includes a guide wheel and a guide wheel mounting plate connected to the guide wheel, and the plurality of guide wheels are respectively disposed inside and above the primary gel tank and the secondary gel tank.

5. The hollow fiber experimental line for water treatment according to claim 1, characterized in that: The take-up assembly includes a take-up water tank and a rotatable guide roller mounted on the take-up water tank. A spray pipe assembly is provided on one side of the guide roller. The spray pipe assembly includes a spray pipe and a spray pipe bracket that mounts the spray pipe on the take-up water tank.

6. The hollow fiber experimental line for water treatment according to claim 5, characterized in that: A wire guide mechanism is provided between the secondary gel tank and the component. The wire guide mechanism includes a linear slide rail and a wire guide slider disposed on the linear slide rail and moving along the linear slide rail. A mounting plate is provided on the wire guide slider, and a wire guide wheel is disposed on the wire guide slider through the mounting plate.

7. The hollow fiber experimental line for water treatment according to claim 5, characterized in that: Liquid level sensors are installed on the primary gel tank, secondary gel tank, and take-up water tank; drain outlets are provided at the bottom of the primary gel tank, secondary gel tank, and take-up water tank, and drain filters are installed on the drain outlets; drain overflow pipes are connected to the high points of the primary gel tank, secondary gel tank, and take-up water tank and the drain outlets, and water supply pipes are connected to the low points of the primary gel tank, secondary gel tank, and take-up water tank; valves are installed on the drain overflow pipes and the water supply pipes.

8. The hollow fiber experimental line for water treatment according to claim 1, characterized in that: The heating component is a heating rod.

9. The hollow fiber experimental line for water treatment according to claim 1, characterized in that: The frame is equipped with a fan assembly, which includes an exhaust pipe horizontally arranged above the primary gel tank, the secondary gel tank and the take-up water tank, and a fan connected to the exhaust pipe. The exhaust pipe is provided with a number of exhaust ports.

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