CN112962303B - Electrostatic electret equipment - Google Patents
Electrostatic electret equipment Download PDFInfo
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- CN112962303B CN112962303B CN202110315324.4A CN202110315324A CN112962303B CN 112962303 B CN112962303 B CN 112962303B CN 202110315324 A CN202110315324 A CN 202110315324A CN 112962303 B CN112962303 B CN 112962303B
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- electret
- electrostatic
- cover plate
- carbon fiber
- frame
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
Abstract
The invention provides electrostatic electret equipment, which comprises a frame, a metal roller shaft and an electret chamber, wherein the frame is provided with a plurality of rollers; the electret chamber comprises an insulating cover plate and a plurality of metal strips arranged in the insulating cover plate, a plurality of carbon fiber clusters are uniformly arranged at the lower ends of the metal strips, the cross sections of the carbon fiber clusters are of an array structure formed by a plurality of carbon fibers, and electrostatic fields are formed between the plurality of carbon fibers on the carbon fiber clusters and grounded metal roller shafts to discharge the carbon fibers at the tips. And a plurality of insulation umbrella-shaped adjustable pressure nozzles are uniformly arranged in the insulation cover plate, and dry compressed air is introduced into the insulation umbrella-shaped adjustable pressure nozzles and is sprayed out in the direction of the metal roll shaft. Introducing a carbon fiber wide interface array structure to form local high pressure at the sharp point of the carbon fiber, wherein the point cloud type distribution forms two rows of point cloud type high-pressure equipotential surfaces; meanwhile, dry air is introduced to provide a dry and clean air pressure field, so that the absorption of dust, moisture and impurities in the natural environment to the electric charge is removed, and the absorption of the melt cloth is facilitated.
Description
Technical Field
The invention relates to the technical field of electrostatic electret equipment, in particular to electrostatic electret equipment.
Background
The electrostatic electret technology for melt-blown cloth is a method for developing and utilizing various charging technologies and charging technologies by mixing different fibers through electrostatic filters with various characteristics. The electrostatic electret device attaches electric charge to the melt-blown nonwoven fabric by high voltage discharge. The electrostatic electret technology enables the filter material fibers to have charges, and a large number of electrodes are formed among the charged fibers by combining the characteristic that the melt-blown superfine fiber material is compact, so that the charged fibers can attract most charged particles in the environment like a magnet, and can polarize the charged particles, further adsorb pollutants with small particles, and even viruses which are nano-scale substances can be subjected to electrostatic adsorption or charge repulsion blocking. Therefore, the filter material treated by electrostatic electret has the advantages of high efficiency, low resistance, adsorption of ultrafine particles and the like.
1) In the electrostatic electret equipment in the prior art, the conductive wires carrying charges are all installed by installing a single conductive wire on one base, and the formed electrostatic field is single and is not beneficial to absorption of the molten cloth.
2) In the electrostatic electret equipment in the prior art, the electrostatic field formed between the conductive wire carrying charges and the roller shaft has a lot of dust, moisture and impurities in a medium, and the absorption of the molten cloth is influenced.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention provides electrostatic electret equipment, wherein a carbon fiber wide interface array structure is introduced to form local high voltage at the sharp point of carbon fiber according to the structural principle formed by an electrostatic field, and two rows of point cloud type high-voltage equipotential surfaces are formed by point cloud type distribution; meanwhile, dry air is introduced to provide a dry and clean air pressure field, so that the absorption of dust, moisture and impurities to charges in the natural environment is removed, the absorption of the melt cloth is facilitated, and meanwhile, the static sensor and the convertible pneumatic adjusting nozzle realize the closed-loop control of the electret system.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrostatic electret apparatus includes a frame, a metal roller shaft, and an electret chamber; the metal roller comprises a plurality of metal rollers which are arranged on the frame in parallel, and a electret chamber is arranged above or below the metal rollers in parallel.
The electret chamber comprises an insulating cover plate and a plurality of metal bands installed in the insulating cover plate, a plurality of carbon fiber clusters are uniformly arranged at the lower ends of the metal bands, the cross sections of the carbon fiber clusters are of an array structure formed by a plurality of carbon fibers, the plurality of carbon fibers on the carbon fiber clusters are connected with a high-voltage power supply through the metal bands, and an electrostatic field is formed between the carbon fiber clusters and a grounded metal roller shaft to carry out point discharge on the carbon fiber clusters.
And a plurality of insulation umbrella-shaped adjustable pressure nozzles are uniformly arranged in the insulation cover plate, and dry compressed air is introduced into the insulation umbrella-shaped adjustable pressure nozzles and is sprayed out in the direction of the metal roll shaft.
Further, the cross section of the carbon fiber cluster is of an annular array structure.
The device further comprises an electret chamber position adjusting mechanism which is a pneumatic mechanism and comprises a pneumatic valve and an adjusting cylinder, wherein the adjusting cylinder is arranged on two sides inside the frame, the movable part of the cylinder is connected to an insulating cover plate, the insulating cover plate is fixed on the frame through the adjusting cylinder, and the position of the insulating cover plate can be adjusted up and down on the frame through the adjusting cylinder; the adjusting cylinder is connected with the pneumatic valve air passage.
The electrostatic closed-loop adjusting mechanism comprises an electrostatic induction sensor, an electret chamber position adjusting mechanism and an electric control device, the electrostatic induction sensor is arranged between the electret chamber and the metal roll shaft and used for inducing the size of an electrostatic field, the electric control device receives the size of the electric field detected by the electrostatic induction sensor and controls the electret chamber position adjusting mechanism according to the size of the electric field, and the distance between the electret chamber and the metal roll shaft is adjusted through the electret chamber position adjusting mechanism. Furthermore, the electret chamber position adjusting mechanism comprises a pneumatic valve and an adjusting cylinder, the adjusting cylinder is arranged on two sides inside the frame, the movable part of the cylinder is connected to an insulating cover plate, the insulating cover plate is fixed on the frame through the adjusting cylinder, and the position of the insulating cover plate can be adjusted up and down on the frame through the adjusting cylinder; the adjusting cylinder is connected with the pneumatic valve air passage.
Furthermore, the electric control device is a single chip controller or a PLC controller, and closed-loop regulation is realized through PID control.
Further, the metal belt is an L-shaped copper belt.
Compared with the prior art, the invention has the beneficial effects that:
1) According to the electrostatic electret device with the electret chamber with the carbon fiber array structure, the carbon fiber wide interface array structure is introduced to form local high voltage at the sharp point of the carbon fiber according to the structural principle of electrostatic field formation, two rows of point cloud type high-voltage equipotential surfaces are formed by point cloud type distribution, the point discharge of a carbon fiber cluster increases the local discharge voltage, the discharge charge is more, and the absorption of fused cloth is facilitated;
2) The invention changes the traditional electric field structure formed by one line into a multi-column electric field structure, has wide electric field distribution and is beneficial to the absorption of melt cloth;
3) The invention can introduce dry air, provide a dry and clean air pressure field, remove the absorption of dust, moisture and impurities to the electric charge under the natural environment, and is beneficial to the absorption of the molten cloth;
4) The closed-loop adjustment control of the electrostatic field of the invention ensures that the electrostatic field is always in a set control range.
Drawings
Fig. 1 is a perspective structural view of an electrostatic electret apparatus of the present invention;
FIG. 2 is a perspective view of another side of FIG. 1;
FIG. 3 is a perspective view of the electret chamber of the invention;
FIG. 4 is a diagram of a nozzle on an electret chamber insulating cover plate of the invention;
FIG. 5 is a cross-sectional view of a carbon fiber cluster of the present invention;
FIG. 6 is a diagram of an insulated umbrella-shaped adjustable pressure nozzle of the present invention;
FIG. 7 is a front view of the electret insulating cover plate of the invention;
FIG. 8 is a front view of the electrostatic electret apparatus of the invention;
fig. 9 is a side view of an electrostatic electret apparatus of the invention.
In the figure: the device comprises a frame 1, a frame 2, a metal roll shaft 3, an electret chamber 4, an insulating cover plate 5, a metal belt 6, a carbon fiber cluster 7, an insulating umbrella-shaped adjustable pressure nozzle 8, carbon fibers 9, a quick connector 10, an electric junction box 11, an electric high-voltage access cable 12, an air compressor 13, a high-voltage power supply 14, a standby power supply 15, a high-precision adjusting cylinder 16, an electrostatic induction sensor 17, a filter 18 and a pneumatic valve.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 to 9, an electrostatic electret apparatus includes a frame 1, a metal roller shaft 2, and an electret chamber 3; the metal roller shaft 2 comprises a plurality of metal roller shafts which are arranged on the frame 1 in parallel, and the electret chambers 3 are arranged above or below the metal roller shafts 2 in parallel.
The electret chamber 3 comprises an insulating cover plate 4 and a plurality of metal strips 5 arranged in the insulating cover plate 4, wherein the metal strips 5 are L-shaped copper strips. A plurality of carbon fiber clusters 6 are uniformly arranged at the lower end of the metal belt 5, the cross section of each carbon fiber cluster 6 is of an array structure formed by a plurality of carbon fibers 8, the plurality of carbon fibers 8 on the carbon fiber clusters 6 are connected with a high-voltage power supply 13 through the metal belt, an electrostatic field is formed between the carbon fiber clusters and the grounded metal roller shaft 2, and point discharge is carried out on the carbon fiber clusters.
The high voltage power supply of the electret chamber 3 is provided by a high voltage power supply 13 via an electrical junction box 10 and an electrical high voltage access cable 11.
An electrostatic field is formed between the electret chamber 3 and the grounded metal roll shaft 2. The melt-blown fabric to be processed passes through the space between the metal roller shaft 2 and the electret chamber 3 to carry out electrostatic electret on the melt-blown fabric.
A plurality of insulation umbrella-shaped adjustable pressure nozzles 7 are uniformly arranged in the insulation cover plate 4, and dry compressed air is introduced into the insulation umbrella-shaped adjustable pressure nozzles 7 and is sprayed out towards the direction of the metal roll shaft 2. Dry compressed air is provided by the air compressor 12 via the filter 17.
As shown in fig. 8, the cross section of the carbon fiber cluster 6 is in a ring-shaped array structure.
The device is characterized by further comprising a position adjusting mechanism of the electret chamber, wherein the position adjusting mechanism of the electret chamber is a pneumatic mechanism and comprises pneumatic valves 18 and adjusting cylinders 15, the adjusting cylinders 15 are arranged on two sides in the frame 1, the movable parts of the cylinders 15 are connected to the insulating cover plate 4, the insulating cover plate 4 is fixed on the frame 1 through the adjusting cylinders 15, and the position of the insulating cover plate 4 can be adjusted up and down on the frame 1 through the adjusting cylinders 15; the adjusting cylinder 15 is connected with the pneumatic valve 18 in an air circuit. The air circuit is supplied with dry compressed air by an air compressor 12 via a filter 17.
Still include static closed loop guiding mechanism, static closed loop guiding mechanism include electrostatic induction sensor 16, electret room position adjustment mechanism and electrically controlled device, electrostatic induction sensor 16 installs between electret room 3 and metal roller 2, the size of response electrostatic field, the electric field size that electrically controlled device received electrostatic induction sensor 16 and detected to according to its size control electret room position adjustment mechanism, adjust the distance between electret room 3 and metal roller 2 through electret room position adjustment mechanism. The electret chamber position adjusting mechanism is a pneumatic mechanism and comprises pneumatic valves 18 and adjusting cylinders 15, the adjusting cylinders 15 are installed on two sides inside the frame 1, the movable parts of the cylinders 15 are connected to the insulating cover plate 4, the insulating cover plate 4 is fixed on the frame 1 through the adjusting cylinders 15, and the position of the frame 1 can be adjusted up and down through the adjusting cylinders 15; the adjusting cylinder 15 is connected with the pneumatic valve 18 in an air path. The electric control device is a single chip microcomputer type controller or a PLC type controller, and closed-loop regulation is realized through PID control.
According to the electrostatic electret device with the carbon fiber array structure electret chamber, a carbon fiber wide interface array structure is introduced to form local high voltage at the sharp point of the carbon fiber according to the structural principle formed by an electrostatic field, two rows of point cloud type high voltage equipotential surfaces are formed by point cloud type distribution, the point discharge of the carbon fiber cluster increases the local discharge voltage, the discharge charge is large, and the absorption of fused cloth is facilitated.
The invention changes the traditional electric field structure formed by one line into a multi-line electric field structure, has wide electric field distribution and is beneficial to the absorption of melt cloth.
The invention can introduce dry air, provide a dry and clean air pressure field, remove the absorption of dust, moisture and impurities to the electric charge in the natural environment, and is beneficial to the absorption of the molten cloth.
The closed-loop adjustment control of the electrostatic field of the invention ensures that the electrostatic field is always in a set control range.
The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (7)
1. An electrostatic electret apparatus, comprising a frame, a metal roller shaft and an electret chamber; the metal roll shafts are arranged on the frame in parallel, and the electret chambers are arranged above or below the metal roll shafts in parallel;
the electret chamber comprises an insulating cover plate and a plurality of metal belts arranged in the insulating cover plate, a plurality of carbon fiber clusters are uniformly fixed at the lower ends of the metal belts, the cross sections of the carbon fiber clusters are of an array structure formed by a plurality of carbon fibers, the plurality of carbon fibers on the carbon fiber clusters are connected with a high-voltage power supply through the metal belts, and an electrostatic field is formed between the carbon fibers and a grounded metal roll shaft to carry out point discharge on the carbon fibers;
a plurality of insulation umbrella-shaped adjustable pressure nozzles are uniformly arranged in the insulation cover plate, and dry compressed air is introduced into the insulation umbrella-shaped adjustable pressure nozzles and is sprayed out towards the direction of the metal roll shaft;
the electrostatic electret device changes an electric field structure formed by one traditional line into an electric field structure with multiple columns.
2. An electrostatic electret apparatus according to claim 1, wherein said carbon fiber clusters have a cross-section of a circular array structure.
3. The electrostatic electret equipment according to claim 1, further comprising an electret chamber position adjusting mechanism, wherein the electret chamber position adjusting mechanism is a pneumatic mechanism, and comprises a pneumatic valve and an adjusting cylinder, the adjusting cylinder is installed on two sides of the inside of the frame, the movable part of the cylinder is connected to an insulating cover plate, the insulating cover plate is fixed on the frame through the adjusting cylinder, and the position of the insulating cover plate can be adjusted up and down on the frame through the adjusting cylinder; the adjusting cylinder is connected with the pneumatic valve air passage.
4. The electrostatic electret equipment according to claim 1, further comprising an electrostatic closed-loop adjustment mechanism, wherein the electrostatic closed-loop adjustment mechanism comprises an electrostatic induction sensor, an electret chamber position adjustment mechanism and an electric control device, the electrostatic induction sensor is installed between the electret chamber and the metal roller shaft and senses the size of the electrostatic field, the electric control device receives the electric field detected by the electrostatic induction sensor and controls the electret chamber position adjustment mechanism according to the electric field, and the distance between the electret chamber and the metal roller shaft is adjusted by the electret chamber position adjustment mechanism.
5. The electrostatic electret apparatus according to claim 4, wherein the electret chamber position adjustment mechanism comprises a pneumatic valve and an adjustment cylinder, the adjustment cylinder is installed on both sides of the inside of the frame, the movable portion of the cylinder is connected to an insulating cover plate, the insulating cover plate is fixed on the frame through the adjustment cylinder, and the position of the insulating cover plate can be adjusted up and down on the frame through the adjustment cylinder; the adjusting cylinder is connected with the pneumatic valve air passage.
6. The electrostatic electret equipment as claimed in claim 4, wherein the electric control device is a single chip controller or a PLC controller, and the closed-loop regulation is realized by PID control.
7. The electrostatic electret apparatus of claim 1, wherein said metal tape is an L-shaped copper tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315324.4A CN112962303B (en) | 2021-03-24 | 2021-03-24 | Electrostatic electret equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315324.4A CN112962303B (en) | 2021-03-24 | 2021-03-24 | Electrostatic electret equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112962303A CN112962303A (en) | 2021-06-15 |
| CN112962303B true CN112962303B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315324.4A Active CN112962303B (en) | 2021-03-24 | 2021-03-24 | Electrostatic electret equipment |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2422765Y (en) * | 2000-06-02 | 2001-03-07 | 同济大学 | Corona charger |
| JP4141679B2 (en) * | 2000-12-07 | 2008-08-27 | 日本バイリーン株式会社 | Electretization method, electretization apparatus, and electret body manufacturing method |
| CN104328515B (en) * | 2014-10-25 | 2016-08-17 | 江苏六鑫洁净新材料有限公司 | A kind of online electret of non-weaving cloth receives device |
| CN110882847A (en) * | 2019-12-17 | 2020-03-17 | 张忠建 | Air-blowing type dust removal device |
| CN111447721A (en) * | 2020-04-20 | 2020-07-24 | 南京苏曼等离子科技有限公司 | Pulsed plasma electret equipment and method |
| CN111519352A (en) * | 2020-05-30 | 2020-08-11 | 张家港南光化工有限公司 | Electrostatic electret for melt-blowing |
| CN112127144A (en) * | 2020-09-22 | 2020-12-25 | 武汉海派特塑料机械有限公司 | Electrostatic electret loading device for melt-blown fabric |
| CN112281469B (en) * | 2020-09-30 | 2023-06-23 | 德玛克(浙江)精工科技有限公司 | Static electret device for enhancing even distribution of charges in melt-blown fabric |
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- 2021-03-24 CN CN202110315324.4A patent/CN112962303B/en active Active
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