Vacuum moisture absorption device of water electret

Abstract

The utility model provides a water electret vacuum moisture absorption device which comprises a water electret system, a water absorption system, a water-air separation system and a dry absorption system which are sequentially arranged in the conveying direction of screen cloth which is sprayed out of a spray melting system and manufactured through a net forming system, and the water electret system comprises fixing frames which are arranged on a machine frame and located on the front side and the rear side of the screen cloth. Supporting seats are arranged at the upper parts of the fixing frames, a pure water tank communicated with a water outlet of the water purifier is arranged between the supporting seats of the two fixing frames, a plurality of water spraying assemblies are arranged at the lower part of the pure water tank and are positioned right above the screen cloth, and an adjusting assembly for adjusting the height of the water spraying assemblies is also arranged at the lower part of the pure water tank; according to the water electret spraying device, the height of the water spraying assembly can be synchronously, conveniently and rapidly adjusted through the height adjusting assembly, an operator does not need to adjust all the nozzles one by one, it is guaranteed that the heights of the multiple nozzles are synchronously and consistently adjusted, the quality of a water electret is guaranteed, and operation is more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of desiccant technology, specifically to a vacuum desiccant device with a water electret electrode. Background Technology

[0002] Meltblown nonwovens are a one-step process for producing nonwoven materials, characterized by high production efficiency, simple operation, and high economic benefits. It involves melting and extruding thermoplastic resin granules, then drawing the extruded fibers into ultrafine fibers under the action of high-speed hot air. The fibers are then bonded together through thermal adhesion to form a web, resulting in a nonwoven material. Due to their small fiber diameter, large specific surface area, small pore size, and high porosity, meltblown nonwovens are widely used in air filtration and medical applications, showing great application potential and market potential.

[0003] Electrostatic electret treatment of meltblown nonwoven fabric imbues its surface with an electrical charge, enhancing its adsorption performance. This treatment is typically achieved through electrostatic electret processing. Electrostatic electret equipment uses high-voltage discharge to attach charges to the meltblown nonwoven fabric. This technology charges the filter material fibers, and combined with the dense structure of meltblown microfiber, numerous electrodes are formed between the charged fibers. These charged fibers not only attract most charged particles in the environment like magnets but also polarize uncharged particles, thus adsorbing smaller pollutants, even nanoscale substances like viruses, through electrostatic adsorption or charge repulsion. Therefore, filter materials treated with electrostatic electret possess advantages such as high efficiency, low resistance, and the ability to adsorb extremely small particles.

[0004] Furthermore, the high-voltage power supply used in the electrostatic treatment of meltblown nonwoven fabric poses safety hazards during production. Water electret treatment involves cooling the meltblown fabric with cold water, then spraying it with ultrapure water at a specific angle, pressure, and flow rate. A vacuum pump forces the pure water through the meltblown fibers, generating static electricity through friction between the water and the fabric, thus achieving electret. Water electret produces more electret material, resulting in better permeability of the nonwoven fabric. The electret material is stable, maintains its position for a longer time, has strong adsorption capacity, and achieves good filtration results under low resistance conditions.

[0005] In traditional water column electret systems, adjusting the distance between the nozzles and the meltblown fabric usually requires the operator to adjust each nozzle individually, which is cumbersome and can easily lead to differences in the height of the multiple nozzles being adjusted, ultimately resulting in inconsistent electrostatic treatment effects of the water electret system. Utility Model Content

[0006] In view of this, the present invention provides a vacuum dehumidification device for water electret, which can realize the synchronous, convenient and quick adjustment of the height of the water spray component through the adjustment component. This solves the problem that the distance adjustment between the nozzle and the meltblown cloth in the traditional water column electrode system usually requires the operator to adjust each nozzle one by one, which is more troublesome and can easily lead to differences in the height of the multiple nozzles being adjusted, ultimately resulting in inconsistent electrostatic treatment effects of the water electret system.

[0007] To solve the above-mentioned technical problems, this utility model provides a vacuum dehumidification device for water electret, including a water electret system, a water absorption system, a water-air separation system, and a drying system arranged sequentially along the conveying direction of the mesh fabric produced by the spraying and melting system. The water electret system includes fixed frames mounted on the frame and located on the front and rear sides of the mesh fabric. A support base is provided on the upper part of the fixed frame. A pure water tank is provided between the support bases of the two fixed frames and is connected to the outlet of a pure water machine through a connecting water pipe. Multiple water spraying components are arranged at the lower part of the pure water tank and directly above the mesh fabric. An adjustment component for adjusting the height of the water spraying components is also provided at the lower part of the pure water tank. This utility model can realize synchronous, convenient, and quick adjustment of the height of the water spraying components through the height adjustment component, eliminating the need for the operator to adjust each nozzle individually. This ensures that the height of multiple nozzles is adjusted synchronously and consistently, saving time and effort while ensuring the quality of water electret, making the operation more convenient and efficient.

[0008] The water spray assembly includes multiple water guide pipes located at the bottom of the pure water tank. Each water guide pipe has a telescopic pipe at its lower part, and each telescopic pipe has a spray head at its lower part.

[0009] The adjustment assembly includes vertical plates on both sides of the outer wall of the pure water tank and above the mesh. Each vertical plate has an installation groove, and each installation groove has a telescopic push rod. A horizontal plate is provided between the output rod ends of the two telescopic push rods. The horizontal plate has through holes corresponding to the water guide pipes, and the upper part of the nozzle passes through the corresponding through holes.

[0010] The telescopic push rod can be an electric push rod or a hydraulic push rod.

[0011] The telescopic tube is a corrugated rubber tube or a corrugated high-pressure hose.

[0012] The water absorption system is a vacuum water absorption tank, and the water-gas separation system is a gas-liquid separator. The drain outlet of the gas-liquid separator is connected to the inlet of the pure water tank. Both the water absorption system and the water-gas separation system are located directly below the water spray assembly. The mesh is located between the vacuum water absorption tank and the water spray assembly, as well as between the gas-liquid separator and the water spray assembly.

[0013] The drying system is a dryer located directly below the mesh fabric.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] 1. This utility model uses a water electret system to transport prepared pure water to a pure water tank via a high-pressure water pump. The water is then sprayed out through nozzles at the bottom of the tank and sprayed onto the meltblown fabric mesh. Static electricity is generated through the friction between the pure water and the fabric. Furthermore, the distance between multiple nozzles and the mesh can be adjusted synchronously by an adjustment component, which greatly improves the consistency and efficiency of adjustment, enhances the water electret capability of the mesh, and makes operation more convenient.

[0016] 2. This utility model can absorb water that leaks into the mesh through the nozzle of the water electret system by means of a water absorption system, and can separate pure water and air by means of a water-air separation system, and recycle the pure water into a pure water tank for reuse, which is more energy-saving and convenient.

[0017] 3. This utility model can achieve efficient drying of residual moisture in the mesh fabric through a dryer, making operation more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structural principle of the vacuum desiccant device with water electret of this utility model;

[0019] Figure 2 This is a schematic diagram of the water electret system in the vacuum dehumidification device of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 100, Spraying system; 200, Web forming system; 300, Water electret system; 310, Fixing frame; 320, Support base; 330, Pure water tank; 340, Spraying assembly; 341, Water guide pipe; 342, Telescopic pipe; 343, Nozzle; 350, Adjustment assembly; 351, Vertical plate; 352, Mounting groove; 353, Telescopic push rod; 354, Horizontal plate; 355, Through hole; 400, Water absorption system; 500, Water-air separation system; 600, Drying system. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-2As shown: This embodiment provides a vacuum dehumidification device for water electret, including a water electret system 300, a water absorption system 400, a water-air separation system 500, and a drying system 600 arranged sequentially along the conveying direction of the mesh fabric produced by the web forming system 200 and sprayed from the melt spraying system 100. The mesh fabric is made of polypropylene with a melt density of 1500 or higher. The water-air separation system 500, the water absorption system 400, and the drying system 600 use an air volume of 60 m³ / min, with the operating power controlled at 30-40 kW. The water spraying pressure of the water electret system 300 is controlled at 200-400 MPa, and the conveying speed of the mesh fabric is controlled at 0.2-0.5 m / min. The water electret system 300 includes fixed frames 3 mounted on a frame and located on the front and rear sides of the mesh fabric. 10. A support base 320 is provided on the upper part of the fixed frame 310. A pure water tank 330 connected to the outlet of the pure water machine is provided between the support bases 320 of the two fixed frames 310. Multiple water spray components 340 are provided on the lower part of the pure water tank 330 and directly above the mesh. An adjustment component 350 for adjusting the height of the water spray components 340 is also provided on the lower part of the pure water tank 330. This utility model can realize the synchronous, convenient and quick adjustment of the height of the water spray components 340 through the height adjustment component 350, without the operator having to adjust each nozzle 343 one by one. It ensures that the height of multiple nozzles 343 is adjusted synchronously and consistently, saving time and effort while ensuring the quality of the water. The operation is more convenient and efficient.

[0023] The water spray assembly 340 includes multiple water guide pipes 341 disposed at the lower part of the pure water tank 330. Each water guide pipe 341 is provided with a telescopic pipe 342 at its lower part, and each telescopic pipe 342 is provided with a nozzle 343 at its lower part. This utility model can adjust the vertical height of the nozzle 343 by means of the telescopic performance of the telescopic pipe 342 itself, in conjunction with the adjustment component 350, while ensuring the connection between the water guide pipe 341 and the nozzle 343, making operation more convenient.

[0024] The adjustment assembly 350 includes vertical plates 351 disposed on both sides of the outer wall of the pure water tank 330 and above the mesh fabric. Each vertical plate 351 has an installation groove 352, and each installation groove 352 is provided with a telescopic push rod 353. The telescopic push rod 353 is an electric push rod or a hydraulic push rod. A horizontal plate 354 is disposed between the output rod ends of the two telescopic push rods 353. The horizontal plate 354 has through holes 355 corresponding to the water guide pipes 341. The upper part of the nozzle 343 passes through the corresponding through holes 355. This utility model can perform synchronous, convenient and fast adjustment of the vertical height of the horizontal plate 354 and the nozzle 343 by extending and retracting the output rods of the telescopic push rods 353. At the same time, the telescopic pipe 342 can ensure that the water guide pipes 341 and the nozzle 343 are always connected during the raising and lowering of the nozzle 343.

[0025] According to another embodiment of the present invention, as shown in the figure... Figure 2 As shown, the telescopic tube 342 is a corrugated rubber tube or a corrugated high-pressure hose. This is to ensure not only the flexible connection and flow between the water guide tube 341 and the nozzle 343, but also to allow for deformation by extending and retracting the output rod of the telescopic push rod 353.

[0026] According to another embodiment of the present invention, such as Figure 1 As shown, the water absorption system 400 is a vacuum water absorption tank, and the water-air separation system 500 is a gas-liquid separator. The drain outlet of the gas-liquid separator is connected to the inlet of the pure water tank 330. Both the water absorption system 400 and the water-air separation system 500 are located directly below the water spray assembly 340. The mesh is located between the vacuum water absorption tank and the water spray assembly 340, as well as between the gas-liquid separator and the water spray assembly 340. This invention can generate negative pressure through the water pump of the vacuum water absorption tank to extract the water from the mesh that has been sprayed by the water spray assembly 340. Furthermore, the extracted water can be separated by the gas-liquid separator and reintroduced into the pure water tank 330, realizing water recycling and reuse, which is more energy-efficient and convenient.

[0027] The drying system 600 is a dryer located directly below the mesh fabric. This invention can thoroughly remove and dry the moisture in the mesh fabric through the dryer, which facilitates the storage of the mesh fabric and subsequent processing operations.

[0028] How to use this utility model:

[0029] First, it needs to be clarified that the vacuum desiccant device involved in this utility model is mainly used in the production process of meltblown nonwoven fabric to perform electret treatment on the mesh, so that the surface of the meltblown nonwoven mesh is charged, and to adsorb and dry the water inside the nonwoven fabric. This utility model uses the working principle of the vacuum desiccant device as an example to explain its usage method in detail. When the mesh needs to be treated with water electret, the automatic conveyor belt with multiple rows of channels and the meltblown system 100 are started first. Then, the mesh fabric formed by the web forming system 200, which has been sprayed by the meltblown system 100, passes directly below the water electret system 300. At the same time, the water absorption system 400, the water-air separation system 500, and the drying system 600 of the water electret system 300 are started to work simultaneously. The water electret system 300 uses a high-pressure water pump to transport the prepared pure water to the pure water tank 330, and sprays it out through the nozzle 343 at the bottom of the pure water tank 330. Water is sprayed onto the meltblown fabric mesh, generating static electricity through friction between the pure water and the fabric. Simultaneously, the water absorption system 400 absorbs the water that seeps into the mesh mesh through the nozzles 343 of the water electret system 300. Furthermore, the water-air separation system 500 separates the pure water from the air, recycling the pure water to the pure water tank 330 for reuse, making it more energy-efficient and convenient. Finally, the dryer efficiently dries any remaining moisture in the mesh mesh, thus completing the water electret treatment and subsequent vacuum dehumidification of the entire mesh mesh. During this process, the distance between multiple nozzles 343 and the mesh mesh is simultaneously adjusted by the adjustment component 350, greatly improving the consistency and efficiency of the adjustment. This eliminates the need for the operator to adjust each nozzle 343 individually, ensuring that the height of multiple nozzles 343 is adjusted synchronously and consistently, saving time and labor while ensuring the quality of the water electret treatment, making the operation more convenient and efficient.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A water-electrostatic vacuum moisture absorption device, comprising a water-electrostatic system (300), a water absorption system (400), a water-gas separation system (500) and a dry absorption system (600) arranged in sequence along the conveying direction of the web fabric made by the webbing system (200) along the spraying system (100), characterized in that: The water standing pole system (300) comprises fixed frames (310) arranged on the frame and located at the front and back of the screen cloth, the upper part of the fixed frame (310) is provided with a support seat (320), a pure water tank (330) is arranged between the support seats (320) of the two fixed frames (310) and communicates with the water outlet of the pure water machine, a plurality of water spraying assemblies (340) are arranged at the lower part of the pure water tank (330) and above the screen cloth, and an adjusting assembly (350) for adjusting the height of the water spraying assembly (340) is arranged at the lower part of the pure water tank (330).

2. The water-polarized electrostatic vacuum moisture absorbing device according to claim 1, wherein: The water spraying assembly (340) comprises a plurality of water guide pipes (341) arranged at the lower part of the pure water tank (330), the lower part of each water guide pipe (341) is provided with an extension pipe (342), and the lower part of each extension pipe (342) is provided with a spray head (343).

3. The water-polarized electrostatic vacuum moisture absorbing device according to claim 2, wherein: The adjusting assembly (350) comprises vertical plates (351) arranged on the outer side wall of the pure water tank (330) and above the screen cloth, an installation groove (352) is formed in each vertical plate (351), a telescopic push rod (353) is arranged in each installation groove (352), a horizontal plate (354) is arranged between the output rod ends of the two telescopic push rods (353), a through hole (355) corresponding to the water guide pipe (341) is formed in the horizontal plate (354), and the upper part of the spray head (343) penetrates through the corresponding through hole (355).

4. The water-polarized electrostatic vacuum moisture absorbing device according to claim 3, wherein: The telescopic push rod (353) is an electric push rod or a hydraulic push rod.

5. The water-polarized electrostatic vacuum moisture absorbing device according to claim 4, wherein: The extension pipe (342) is a corrugated rubber pipe or a corrugated high-pressure hose.

6. The water-polarized electrostatic vacuum moisture absorbing device according to claim 5, wherein: The water suction system (400) is a vacuum water suction tank, the water vapor separation system (500) is a gas-liquid separator, the water outlet of the gas-liquid separator communicates with the water inlet of the pure water tank (330), the water suction system (400) and the water vapor separation system (500) are located below the water spraying assembly (340), and the screen cloth is located between the vacuum water suction tank and the water spraying assembly (340) and between the gas-liquid separator and the water spraying assembly (340).

7. The water-polarized electrostatic vacuum moisture absorbing device according to claim 6, wherein: The dry suction system (600) is a dryer and is located below the screen cloth.

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