Storage device for PVDF (polyvinylidene fluoride) hollow fiber membrane filaments by thermally induced phase method
By introducing a rotary motor-driven screw system and a desiccant box into the PVDF hollow fiber membrane filament storage device, the problem of the storage device's inability to adjust its height was solved, achieving adaptability to membrane filaments of different lengths and moisture-proof effect, thus expanding its application range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-03-24
AI Technical Summary
Existing PVDF hollow fiber membrane filament storage devices cannot adjust their height, which limits their applicability to membrane filaments of specific lengths.
A structure including a storage cabinet, a rotary motor, a screw, an upper clamping plate, and a lower clamping plate was designed. The distance between the upper and lower clamping plates is adjusted by the rotary motor driving the screw to accommodate membrane fibers of different lengths, and a desiccant storage box is provided to remove moisture.
It achieves applicability to PVDF hollow fiber membranes of different lengths, prevents the membranes from getting damp, ensures a constant temperature in the storage environment, and expands the applicability of the storage device.
Smart Images

Figure CN224029612U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of storage device, especially to a kind of storage device of thermophoresis phase method PVDF hollow fiber membrane silk. BACKGROUND
[0002] Thermophoresis phase separation method is a kind of technology for preparing microporous membrane, and is particularly suitable for the preparation of microporous membrane of polyethylene, polypropylene and other polyolefin materials. The principle of TIPS method is to dissolve the polymer in a high-boiling, low-volatility solvent above the melting point of the polymer to form a homogeneous solution. Then, through cooling, the system undergoes phase separation. In this process, the system will undergo solid-liquid phase separation and liquid-liquid phase separation. By controlling the appropriate process conditions, a two-phase structure with polymer as the continuous phase and solvent as the dispersed phase can be formed. Finally, using appropriate volatile reagents, the solvent is extracted, and a polymer microporous membrane with a specific structure is obtained.
[0003] At present, when using thermophoresis phase separation method to prepare PVDF hollow fiber membrane silk, storage device is needed after preparation.
[0004] Patent No. CN219858687U provides a kind of storage device of PVDF hollow fiber membrane silk, including: base, the top of the base one side is fixedly installed with placing cabinet, the top of the base and the one side of placing cabinet is fixedly installed with protective shell, the inside one side of the placing cabinet is equipped with air inlet, the inside one side of the placing cabinet and the outside of air inlet both sides are fixedly installed with slide rail. The inside of the protective shell of the storage device of PVDF hollow fiber membrane silk provided by the utility model is installed with air compressor, cold air or hot air is introduced into the inside of placing cabinet through air inlet by the work of air compressor, the cooperation of temperature sensor is guaranteed, the temperature inside placing cabinet is constant, avoid temperature too high or too low and affect the function of PVDF hollow fiber membrane silk, impurities dust can be filtered through filter screen, avoid dust in air into the inside of placing cabinet, cause PVDF hollow fiber membrane silk to be contaminated, through slide rail, filter screen can be disassembled and cleaned.
[0005] However, the patent technology still has the following problems: the length of hollow fiber membrane silk used at present is not the same, usually between 3-6 meters, the storage device in the patent technology cannot adjust the height, so it can only be used for the storage of hollow fiber membrane silk of one length, and other lengths need to be equipped with another device, so its use range is small. UTILITY MODEL CONTENT
[0006] According to the above technical problems, the utility model provides a kind of storage device of thermophoresis phase method PVDF hollow fiber membrane silk for expanding use range.
[0007] The utility model provides a kind of storage device of thermophoresis PVDF hollow fiber membrane silk, it is characterized by including storage cabinet and conveying mechanism, the storage cabinet bottom fixedly connected conveying mechanism, the storage cabinet top side is connected rotary motor respectively before and after, each the rotary motor output end is connected screw rod, the screw rod middle part is provided with thread, the screw rod middle part is connected with upper clamping plate, the screw rod lower part is connected with lower clamping plate by bearing, the storage cabinet inboard top is equipped with placing groove, dry agent storage box is placed in the placing groove.
[0008] The utility model provides a kind of storage device of thermophoresis PVDF hollow fiber membrane silk, it is characterized by still including guide rod, the guide rod is oppositely arranged with screw rod, the guide rod number is two, two the guide rod is fixedly connected in storage cabinet interior, the upper clamping plate and lower clamping plate are slidably connected guide rod.
[0009] The upper clamping plate one side before and after is provided with threaded hole respectively, the upper clamping plate bottom is uniformly provided with multiple clamping grooves, the upper clamping plate other side before and after is equipped with multiple mounting holes, the upper clamping plate middle part is equipped with multiple ventilation holes.
[0010] The lower clamping plate left and right sides are equipped with multiple mounting holes, the lower clamping plate middle part is equipped with multiple ventilation holes, the lower clamping plate upper portion is uniformly provided with multiple clamping grooves.
[0011] The screw rod bottom is connected in the storage cabinet bottom side interior by bearing.
[0012] Another placing groove is equipped in the storage cabinet bottom middle part, dustproof board is inserted in the placing groove, air compressor is provided on the dustproof board lower part.
[0013] Temperature sensor is installed on the lateral wall in the cabinet interior.
[0014] The storage cabinet front side is hinged cabinet door, observation window and handle are provided on the cabinet door.
[0015] The conveying mechanism includes base, the base bottom left and right fixedly connected electric push rod, the electric push rod telescopic end is connected fixed plate, the fixed plate bottom four corners fixedly connected with brake wheel, the base bottom four corners fixedly connected support column.
[0016] The utility model has the advantages that the utility model is a kind of storage device of thermophoresis PVDF hollow fiber membrane silk, by being provided with rotary motor, screw rod, upper clamping plate, lower clamping plate and guide rod, so that rotary motor drives screw rod rotation, screw rod thread portion drives upper clamping plate to move up and down, lower clamping plate is not in thread portion and thus does not move, the interval between upper clamping plate and lower clamping plate can be adjusted at this time, it is convenient for it to be used with the PVDF hollow fiber membrane silk of different length;By being provided with dry agent storage box, the moisture in cabinet can be removed, to prevent PVDF hollow fiber membrane silk from being damp.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the front view structural schematic diagram of the utility model;
[0018] Figure 2 It is the structural schematic diagram of the utility model removing upper clamping plate and lower clamping plate;
[0019] Figure 3 It is the structural schematic diagram of the utility model removing upper clamping plate and lower clamping plate;
[0020] Figure 4 It is the structural schematic diagram of the lower clamping plate of the utility model;
[0021] Figure 5 It is the structural schematic diagram of the upper clamping plate of the utility model.
[0022] The figure mark: 1-base; 11-support column; 12-electric push rod; 13-fixed plate; 14-with brake wheel; 15-air compressor; 2-storage cabinet body; 21-cabinet door; 22-rotary motor; 23-screw rod; 24-guide rod; 25-dry agent storage box; 26-dustproof plate; 27-bearing; 28-putting groove; 3-lower clamping plate; 31-ventilation hole; 32-clamping groove; 33-mounting hole; 4-upper clamping plate; 41-threaded hole. DETAILED DESCRIPTION
[0023] Example 1
[0024] The technical scheme of the utility model will be clearly and completely described below in combination with the drawings of the utility model.
[0025] As Figure 1 Indicated, the utility model provides a kind of storage device of thermotropic phase method PVDF hollow fiber membrane silk, it is characterized by including storage cabinet body 2 and conveying mechanism, storage cabinet body 2 bottom fixed connection conveying mechanism, storage cabinet body 2 top side is connected rotary motor 22 respectively before and after, each rotary motor 22 output end is connected screw rod 23, screw rod 23 middle part is provided with screw thread, screw rod 23 lower part is not provided with screw thread, screw rod 23 middle part screw thread connects upper clamping plate 4, screw rod 23 lower part is connected lower clamping plate 3 by bearing 27, storage cabinet body 2 inboard top is set up putting groove 28, dry agent storage box 25 is placed in putting groove 28.
[0026] The utility model provides a kind of storage device of thermotropic phase method PVDF hollow fiber membrane silk, it is characterized by further including guide rod 24, guide rod 24 is oppositely arranged with screw rod 23, the number of guide rod 24 is two, two guide rods 24 are all fixedly connected in storage cabinet body 2 inside, and upper clamping plate 4 and lower clamping plate 3 are all slidably connected guide rod 24.
[0027] The upper clamping plate 4 is provided with threaded holes 41 on the front and back sides, respectively, and a plurality of clamping grooves 32 are uniformly arranged on the bottom of the upper clamping plate 4, a plurality of mounting holes 33 are formed on the front and back sides of the other side of the upper clamping plate 4, and a plurality of ventilation holes 31 are formed in the middle of the upper clamping plate 4.
[0028] A plurality of mounting holes 33 are formed on the left and right sides of the lower clamping plate 3, a plurality of ventilation holes 31 are formed in the middle of the lower clamping plate 3, and a plurality of clamping grooves 32 are uniformly arranged on the upper part of the lower clamping plate 3.
[0029] The screw rod 23 is connected to the inside of the bottom side of the storage cabinet 2 through a bearing 27.
[0030] Another placing groove 28 is formed in the middle of the bottom of the storage cabinet 2, a dustproof plate 26 is inserted into the placing groove 28, and an air compressor 15 is arranged on the lower part of the dustproof plate 26.
[0031] A temperature sensor is installed on the side wall beside the inside of the storage cabinet 2.
[0032] The front side of the storage cabinet 2 is hingedly connected with a cabinet door 21, and the cabinet door 21 is provided with an observation window and a handle.
[0033] The conveying mechanism comprises a base 1, and the bottom side of the base 1 is fixedly connected with electric push rods 12 on the left and right sides, the telescopic end of the electric push rod 12 is connected with a fixed plate 13, the bottom of the fixed plate 13 is fixedly connected with brake wheels 14 on the four corners, and the bottom of the base 1 is fixedly connected with support columns 11 on the four corners.
[0034] Example 2
[0035] In use, first, the distance between the upper clamping plate 4 and the lower clamping plate 3 is adjusted according to the length of the PVDF hollow fiber membrane wire, and the specific adjustment operation is as follows: start two rotary motors 22, the two rotary motors 22 drive the respective screw rods 23 to rotate, the screw rods 23 drive the upper clamping plate 4 to move up and down under the guidance of the guide rods 24, at this time, the bottom of the screw rod 23 is not threaded and is connected to the lower clamping plate 3 through a bearing 27, at this time, the lower clamping plate 3 does not move, and the screw rod 23 only rotates in the mounting hole 33 of the lower clamping plate 3, when the distance between the upper clamping plate 4 and the lower clamping plate 3 is adjusted to the appropriate position, stop the rotary motor 22.
[0036] Then, the upper and lower clamps of the PVDF hollow fiber membrane wire are inserted into the corresponding clamping grooves 32 of the upper and lower clamping plates, and after the fixation is completed, the cabinet door 21 can be closed.
[0037] When the temperature in the cabinet 2 is not suitable, the temperature sensor senses and sends a signal to the controller, and the air compressor 15 is started through the controller, at this time, the air compressor 15 is started, the air flow in the storage cabinet 2 is circulated, the temperature in the inside of the storage cabinet 2 is adjusted to be appropriate, and the air compressor 15 stops running.
[0038] When the device needs to move, the electric push rod 12 is started to drive the fixed plate 13 to move downwards, and then the brake wheel 14 is driven to move downwards to the ground, and then the electric push rod 12 is stopped to drive the device to move.
[0039] The desiccant storage box 25 at the top of the storage cabinet 2 plays a drying role to prevent the PVDF hollow fiber membrane wire from being damp, and the desiccant storage box 25 can be taken out and replaced at any time.
[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The various components mentioned in the utility model are common technology in the prior art, which should be understood by the skilled person in the industry. The utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A storage device for thermally induced phase method PVDF hollow fiber membrane filaments, characterized by Including storage cabinet and conveying mechanism, the bottom of the storage cabinet is fixedly connected with the conveying mechanism, the top of the storage cabinet is connected with rotary motors on the left and right sides respectively, the output end of each rotary motor is connected with a screw rod, the middle part of the screw rod is provided with a screw thread, the middle part of the screw rod is threadedly connected with an upper clamping plate, the lower part of the screw rod is connected with a lower clamping plate through a bearing, a placing groove is formed in the top of the inner side of the storage cabinet, and a desiccant storage box is placed in the placing groove.
2. A storage device for thermally induced phase process PVDF hollow fiber membrane filaments according to claim 1, characterized in that The guide rods are arranged opposite to the screw rods, the number of the guide rods is two, and the guide rods are fixedly connected to the inside of the storage cabinet, and the upper clamping plate and the lower clamping plate are slidably connected to the guide rods.
3. A storage device for thermally induced phase process PVDF hollow fiber membrane filaments according to claim 1, characterized in that The upper clamping plate is provided with threaded holes on the left and right sides, the bottom of the upper clamping plate is uniformly provided with a plurality of clamping grooves, the other side of the upper clamping plate is provided with a plurality of mounting holes on the left and right sides, and the middle part of the upper clamping plate is provided with a plurality of ventilation holes.
4. The storage device of thermally induced phase inversion PVDF hollow fiber membrane filaments according to claim 1, characterized in that The bottom of the screw rod is connected to the inside of the bottom side of the storage cabinet through a bearing.
5. A storage device for thermally induced phase method PVDF hollow fiber membrane filaments according to claim 1, characterized in that Another placing groove is formed in the middle of the bottom of the storage cabinet, a dustproof plate is inserted into the placing groove, and an air compressor is arranged at the lower part of the dustproof plate; a temperature sensor is installed on the side wall on the left and right sides of the inside of the storage cabinet; a cabinet door is hingedly connected to the front side of the storage cabinet, an observation window and a handle are arranged on the cabinet door.
6. A storage device for thermally induced phase method PVDF hollow fiber membrane filaments according to claim 1, characterized in that The conveying mechanism comprises a base, electric push rods are fixedly connected to the left and right sides of the bottom of the base, the telescopic end of the electric push rod is connected with a fixed plate, brake wheels are fixedly connected to the bottom of the four corners of the fixed plate, and support columns are fixedly connected to the bottom of the four corners of the base.
Citation Information
Patent Citations
Storage device for PVDF (Polyvinylidene Fluoride) hollow fiber membrane filaments
CN219858687U