CN214681068U

CN214681068U - Wood pulp paper composite nano-film filtering material

Info

Publication number: CN214681068U
Application number: CN202022510374.1U
Authority: CN
Inventors: 黄鑫
Original assignee: Yizimi Wuxi Nano Material Technology Co ltd
Current assignee: Yizimi Wuxi Nano Material Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-11-12
Anticipated expiration: 2030-11-03

Abstract

The utility model belongs to the material filters the field, concretely relates to compound nanometer membrane filtering material of wood pulp paper, including wood pulp paper, wood pulp paper upper surface is connected with nanometer membrane. A plurality of polyvinylidene fluoride fibers are vertically and alternately distributed on the nano film, the sizes of the intervals among the polyvinylidene fluoride fibers are the same, and the porosity among the polyvinylidene fluoride fibers is nano-scale; use the electrostatic spinning technique on wood pulp paper, compound polyvinylidene fluoride fibre nano-film on wood pulp paper, because of polyvinylidene fluoride fibre nano-film itself has high filtration efficiency and low air resistance's performance, make polyvinylidene fluoride fibre nano-film at the in-process that increases along with holding the dirt volume, reduce the consumption of energy, and polyvinylidene fluoride fibre nano-film matter is light, good mechanical properties has, be difficult for producing the cracked condition of in-process emergence of processing and use, do not influence filter medium's filtration efficiency, and can not cause harmful effects to staff's health.

Description

Wood pulp paper composite nano-film filtering material

Technical Field

The utility model relates to a material filters the field, concretely relates to compound nanometer membrane filtering material of wood pulp paper.

Background

The filtration is an operation that liquid or gas in suspension or solid particle-containing heating gas permeates through a medium under the action of a driving force or other external forces, and solid particles and other substances are intercepted by the filter medium, so that the solid and other substances are separated from the liquid or gas.

The prior art has the following problems:

the core filter medium in the existing high-efficiency air filter and the ultra-high-efficiency air filter is usually ultrafine glass fiber membrane or melt-blown fiber non-woven fabric, and although both can achieve higher filtering efficiency, the air resistance can be increased sharply along with the increase of dust holding capacity in the use process, thereby causing large energy consumption. In addition, glass fibers have poor folding resistance, are easily broken during processing and use, and have the possibility of causing cancer while affecting filtration efficiency.

The electrostatic spinning nanofiber membrane has attracted wide attention as a novel filter material, the filtering principle of the electrostatic spinning nanofiber membrane is complex, the electrostatic spinning nanofiber membrane is generally regarded as a result of combined action of five effects, namely an interception effect, an inertia effect, a diffusion effect, a gravity effect and an electrostatic effect, and the size, the fiber diameter and distribution, the porosity, the air flow speed and the like of particles are influenced by a synergistic combination mode of the effects. The nanofiber membrane has the characteristics of high filtering efficiency, low air resistance, low gram weight and the like, so that the nanofiber membrane can gradually replace the traditional fiber material and is applied to the aspects of industrial dust filtration, indoor air purification, locomotive air filtration and the like.

In order to solve the problems, the application provides a wood pulp paper composite nano-film filtering material.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a compound nanometer membrane filtering material of wood pulp paper has the characteristics that filtration efficiency is high and extension filter core life.

(II) technical scheme

In order to solve the technical problem, the utility model provides a compound nanometer membrane filtering material of wood pulp paper, including wood pulp paper, wood pulp paper upper surface is connected with nanometer membrane.

Preferably, the nano-film is a polyvinylidene fluoride fiber component, and the diameter of the polyvinylidene fluoride fiber is nano-scale.

Preferably, a plurality of polyvinylidene fluoride fibers on the nano-film are mutually vertically and alternately distributed, the sizes of the intervals among the polyvinylidene fluoride fibers are the same, and the porosity among the polyvinylidene fluoride fibers is nano-scale.

Preferably, the nano-film is compounded on the surface of the wood pulp paper through an electrostatic spinning process.

The above technical scheme of the utility model has following profitable technological effect:

use the electrostatic spinning technique on wood pulp paper, compound polyvinylidene fluoride fibre nano-film on wood pulp paper, improve wood pulp paper and filter, the hole, performances such as ventilative, because of polyvinylidene fluoride fibre nano-film itself has the performance of high filtration efficiency and low air resistance, make polyvinylidene fluoride fibre nano-film at the in-process along with holding the increase of dirt volume, reduce the consumption of energy, and polyvinylidene fluoride fibre nano-film matter is light, good mechanical properties has, be difficult for producing the cracked condition of in-process emergence with the use, do not influence the filtration efficiency of filter medium, the life of extension filter core, reduce maintenance work volume and maintenance cost, and can not cause harmful effects to staff's healthy.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the present invention.

Reference numerals:

1. wood pulp paper; 2. and (4) a nano film.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-2, the utility model provides a wood pulp paper composite nano-film filtering material, which comprises wood pulp paper 1, wherein the upper surface of the wood pulp paper 1 is connected with a nano-film 2.

In the embodiment, in order to solve the problem that the air resistance is increased sharply along with the increase of the dust holding capacity during the use of the filter medium, so that a large amount of energy is consumed. In addition, glass fibers have poor folding resistance, are easily broken during processing and use, and have the potential problem of carcinogenesis while affecting filtration efficiency.

As shown in fig. 1-2, the electrostatic spinning technology is used on the wood pulp paper 1, the polyvinylidene fluoride fiber nano-membrane 2 is compounded on the wood pulp paper 1, the performances of filtering, pore space, air permeability and the like of the wood pulp paper 1 are improved, because the polyvinylidene fluoride fiber nano-membrane 2 has the performances of high filtering efficiency and low air resistance, the polyvinylidene fluoride fiber nano-membrane 2 reduces the consumption of energy in the process of increasing along with the dust holding capacity, and the polyvinylidene fluoride fiber nano-membrane 2 is light in weight and has good mechanical performance, the condition of fracture is not easy to occur in the production, processing and using processes, the filtering efficiency of a filtering medium is not influenced, the service life of the filter element is prolonged, the maintenance workload and the maintenance cost are reduced, and no adverse effect is caused on the health of workers.

It should be noted that, the utility model discloses the compound electrostatic spinning nanofiber membrane of wood pulp paper 1 has high interception efficiency to submicron order granule, if be applied to locomotive air cleaner with this kind of complex film, not only can improve the filtration efficiency of filter, guarantees the biggest air mass flow of engine, can also prolong the life of filter core greatly simultaneously, reduces maintenance work volume and maintenance cost. Meanwhile, the material has high filtering efficiency, low cost, light weight and good mechanical property, can be used in a main filter element of an air filter of a heavy locomotive, and ensures the working efficiency of the heavy locomotive in severe environment.

The development introduction of the technical field is as follows: the air filter for the locomotive comprises an air filter and an air conditioner filter. The air filter is positioned in an air inlet system of the engine and mainly used for preventing dust and other harmful gas impurities in air from entering the air cylinder, ensuring the quality of air entering the air cylinder and meeting the air flow required by the normal work of the engine. The air conditioner filter is installed in air conditioner blower units of automobiles, airplanes, trains and the like and is used for filtering air entering a passenger cabin and discharging peculiar smell.

Currently, the filter material commonly used in engine air cleaners is a resin treated microporous wood pulp filter paper. The microporous filter paper is easy to block in the using process, needs frequent maintenance and replacement and is easy to cause fuel waste. Particularly, heavy equipment is often required to perform tasks under extreme conditions of harsh environments, and if air in an engine is not clean, the equipment cannot normally operate and cannot play the expected role. The electrostatic spinning nanofiber membrane is a novel filter material integrating high filtering efficiency and low air resistance, and has great application value in an air filter of a locomotive.

In this embodiment, in order to make the fibers for filtration not easily broken, the nano-membrane 2 is further a polyvinylidene fluoride fiber member, and the diameter of the polyvinylidene fluoride fiber is nano-scale.

In order to enable the nano-film 2 to filter dust particles with smaller sizes, a plurality of polyvinylidene fluoride fibers on the nano-film 2 are vertically and alternately distributed, the sizes of the intervals among the polyvinylidene fluoride fibers are the same, and the porosity among the polyvinylidene fluoride fibers is nano-scale.

In order to prevent polyvinylidene fluoride micro particles from diffusing into the surrounding environment and causing harm to the health of workers, the nano film 2 is further compounded on the surface of the wood pulp paper 1 through an electrostatic spinning process.

The utility model discloses a theory of operation and use flow: use the electrostatic spinning technique on wood pulp paper 1, compound polyvinylidene fluoride fibre nano-membrane 2 on wood pulp paper 1, improve wood pulp paper 1 and filter, the hole, performances such as ventilative, because of polyvinylidene fluoride fibre nano-membrane 2 itself has the performance of high filtration efficiency and low air resistance, make polyvinylidene fluoride fibre nano-membrane 2 at the in-process that increases along with holding the dirt volume, reduce the consumption of energy, and polyvinylidene fluoride fibre nano-membrane 2 is light, good mechanical properties has, be difficult for producing the fracture condition in-process at processing and use, do not influence the filtration efficiency of filter medium, the life of extension filter core, reduce maintenance work volume and maintenance cost, and can not cause harmful effects to staff's health.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a compound nanometer membrane filtering material of wood pulp paper, its characterized in that, includes wood pulp paper (1), wood pulp paper (1) upper surface is connected with nanometer membrane (2), mutually perpendicular crisscross distribution between a plurality of polyvinylidene fluoride fibre on nanometer membrane (2), the interval size between the polyvinylidene fluoride fibre is the same, and the porosity between the polyvinylidene fluoride fibre is the nanometer.

2. The wood pulp paper composite nano-film filtering material as claimed in claim 1, wherein said nano-film (2) is made of polyvinylidene fluoride fiber component, and the diameter of polyvinylidene fluoride fiber is nano-scale.

3. The wood-pulp-paper composite nanomembrane filter material according to claim 1, wherein the nanomembrane (2) is composited on the surface of the wood-pulp-paper (1) through an electrospinning process.