Electrostatic precipitation filter with integrated structure and polarization process for electrostatic precipitation filter

An electrostatic dust collection and filter technology, which is applied to electrostatic dust collection filters, high-efficiency demand occasions, and low wind resistance fields. It can solve problems such as electric shocks in exposed contact areas, complex safety circuits, and complex high-voltage power supplies. Charge storage time, improve dust collection effect, enhance the effect of electret effect

Active Publication Date: 2012-07-18
DONGGUAN UNICLEAR NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of HEPA filters are:
[0005] 2) The filter needs to be replaced regularly and cannot be reused, which increases the application cost
[0008] 2) The slight ignition and discharge sound between the electrodes has always been criticized by users, causing concerns about the safety of the product
[0009] 3) Due to the limitation of the breakdown voltage of the open structure, the single filtration efficiency of EPS is low
[0010] 4) Complex high-voltage power supply and high-voltage safety protection measures are required, which increases equipment costs
[0011] 5) The EPS structure, especially the wire-plate structure is very fragile, and it is easy to cause damage during the cleaning process
[0015] 2. The electrodes are in direct contact with the outside of the injection molded orifice plate. In the case of microporous injection molding defects in the orifice plate, it may cause the electrode to discharge to the air or the corresponding inner wall, resulting in odor
[0016] 3. In order to meet the requirements of waterproof and overall structural strength, the adhesive used between the orifice pl...

Method used

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  • Electrostatic precipitation filter with integrated structure and polarization process for electrostatic precipitation filter
  • Electrostatic precipitation filter with integrated structure and polarization process for electrostatic precipitation filter
  • Electrostatic precipitation filter with integrated structure and polarization process for electrostatic precipitation filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The present invention is an electrostatic dust collection filter for electrostatic dust collection type air purification equipment, see figure 1 As shown, the filter includes: a main body 1 as a dust collection device and an outer frame 3 for encapsulating the main body 1, wherein the main body 1 is composed of multi-layer stacked orifice plates 10 and an airtight conductive film 20 between the orifice plates 10 constitute.

[0066] The orifice plate 10 can be made of PP (polypropylene), PE (polyethylene), PC (polycarbonate), PVC (polyvinyl chloride), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), etc. Injection molding of materials with electret properties. At the same time, plastic micro-foaming materials such as electret materials, negative ion generating materials and magnetic materials can be added therein. combine figure 2 The orifice plate 10 is integrally formed with an array of linear holes 110 for gas to pass through. In this embodiment, a...

Embodiment 2

[0104] The difference from Embodiment 1 is that in-line electret polarization is performed during the injection molding process of the orifice plate 10 .

[0105] see image 3 As shown, the orifice plate 10 is formed by one-time injection molding of an injection molding machine, and the electret and magnetization of materials are carried out to the orifice plate 10 during the injection molding process. The process includes:

[0106] a. Perform positive corona or negative corona primary electret 121 at the exit 1201 of the injection mold 12 and the entrance space of the cooling section 1202. The use includes: needle plate, thread plate, thread, needle-dielectric barrier plate, line-dielectric barrier version, the electret voltage difference is 10-50Kv;

[0107] b. Between the cooling section 1202 and the traction section 1203, a corona secondary electret 122 with a needle plate, wire plate, and wire electrode structure but opposite to the polarity in step a is used, and the el...

Embodiment 3

[0117] The difference between this embodiment and Embodiment 1 is that the orifice plate 10 adopts a foaming process.

[0118] See figure 2 As shown, the material used in the orifice plate 10 is added with: a microcellular foaming agent with nitrogen as the microfoaming gas, the foaming ratio is 0.1 to 10%, and the lens-shaped or spindle-shaped microcellular foam is formed under the action of injection molding stretching. Bubbles 102. In Example 3, a well-known technology in the injection molding industry was adopted, and 0.2% of azo-based microfoaming agent was mixed into the PP raw material for foam injection molding. The formed orifice plate 10 has a foaming volume of 5% and a diameter of 5-20um. The foam body forms ellipsoidal or lens-shaped microbubbles 102 under the action of stretching, and the thickness of the orifice plate 10 is about 3.1mm.

[0119] In this embodiment, on the basis of Embodiment 1, microbubbles are distributed in the plastic material of the orific...

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Abstract

The invention relates to the technical field of air filter products, in particular to an electrostatic precipitation filter which is used for trapping particulate matters in air efficiently and has an integrated structure and a polarization process for the electrostatic precipitation filter. A main body of the electrostatic precipitation filter is formed by overlaying a plurality of layers of pore plates, wherein array holes through which the air passes are formed in the pore plates integrally; the pore plates are micro-foamed and made of a plastic material added with a polarization reinforcing material, a negative ion emitting material and a magnetic material; closed conducting films for applying high-voltage electric fields are arranged on upper and lower surfaces of each layer of pore plate, and ion emitting devices are arranged in one or more of layers of pore plates; and a high-voltage power supply for supplying power to a high-potential electrode and a low-potential electrode is encapsulated on the lateral surface of an overlaid structure, the overlaid structure and the high-voltage power supply are encapsulated in an outer frame of a protective structure integrally, and the outside of the outer frame is powered by low-voltage direct current or a mains supply. The electrostatic precipitation filter is processed by an on-line polarization technology to form a practical product. Due to the adoption of the technical scheme, the particulate matter filter can eliminate interelectrode sparking and electric shock hidden troubles, is easy to clean, low in wind resistance and high in efficiency, has long service life, can be recycled and is suitable for household and industrial air purification devices.

Description

Technical field: [0001] The invention relates to the technical field of filter products, in particular to an electrostatic dust collection filter with an integrated structure, which is used to purify particulate dust in the air, and can be applied to household air purifiers, central air conditioners, vacuum cleaners, and industrial environment purification. Equipment, especially suitable for occasions requiring low wind resistance and high efficiency. When the orifice plate is made of corrosion-resistant and high-temperature-resistant fluoroplastics, the invention can also be used in corrosion-resistant and high-temperature gas treatment occasions. Background technique: [0002] At present, there are two main ways to purify particulate matter in the air: [0003] 1. The filter composed of folded non-woven fiber filter paper, represented by HEPA (High Efficiency Particulate Air filter) filter, through screening, bridge plug, impact adhesion, electrostatic electret fiber elec...

Claims

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Application Information

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IPC IPC(8): B03C3/34B03C3/40B03C3/66B29C45/00B29C71/04
CPCB03C3/09B03C3/025B03C3/28B03C3/40B03C3/60B03C3/41B03C3/34B29C45/00B03C1/30Y02A50/2351B03C3/361B03C3/64B29C44/42B29K2023/06B29K2023/12B29K2027/18B29K2067/003
Inventor 王宝柱赵建洪赵羽石刘兴龙郭奕文
Owner DONGGUAN UNICLEAR NEW MATERIAL
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