CN111195462A - Air particulate matter filter equipment - Google Patents

Air particulate matter filter equipment Download PDF

Info

Publication number
CN111195462A
CN111195462A CN201811372029.7A CN201811372029A CN111195462A CN 111195462 A CN111195462 A CN 111195462A CN 201811372029 A CN201811372029 A CN 201811372029A CN 111195462 A CN111195462 A CN 111195462A
Authority
CN
China
Prior art keywords
filter screen
metal plate
negative ion
electrode metal
conductive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811372029.7A
Other languages
Chinese (zh)
Other versions
CN111195462B (en
Inventor
严东旭
俞辉
徐维跃
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
Original Assignee
Ningbo Fotile Kitchen Ware Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Fotile Kitchen Ware Co Ltd filed Critical Ningbo Fotile Kitchen Ware Co Ltd
Priority to CN201811372029.7A priority Critical patent/CN111195462B/en
Publication of CN111195462A publication Critical patent/CN111195462A/en
Application granted granted Critical
Publication of CN111195462B publication Critical patent/CN111195462B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D49/00Separating dispersed particles from gases, air or vapours by other methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017Combinations of electrostatic separation with other processes, not otherwise provided for

Abstract

The invention discloses an air particulate matter filtering device which comprises a conductive filter screen device and a negative ion generating device, wherein the negative ion generating device is positioned at the upstream of the conductive filter screen device, the conductive filter screen device comprises a filter screen which is a conductive filter screen, and the air particulate matter filtering device also comprises an electrode metal plate which is arranged between the negative ion generating device and the conductive filter screen device and can be connected with a positive high-voltage power supply, and the positive high-voltage power supply voltage connected with the electrode metal plate is higher than the positive high-voltage power supply voltage connected with the filter screen. The negative ions generated by the negative ion probe are subjected to the traction force of the electrode metal plate, and the direction of the negative ions is opposite to the flowing direction of the gas, so that the contact time of the negative ions and microparticles in the air is prolonged; meanwhile, the voltage of the electrode metal plate is higher than the voltage connected to the conductive filter screen device, so that an electric field in the same direction as the wind speed is formed, the negative ions are forced in the electric field in the direction opposite to the wind speed, the contact time of the negative ions and micro-particles in the air is increased, the combination degree of the negative ions and the particles is improved, and the purification efficiency is improved.

Description

Air particulate matter filter equipment
Technical Field
The invention relates to the air purification technology, in particular to an air particulate filtering device.
Background
At present, methods for removing particulate matters from air in the market mainly comprise methods such as filtering and ionization, wherein the filtering method generally adopts an HEPA filter screen, and utilizes the efficient adsorption capacity of the HEPA filter screen on the particulate matters to realize filtering, but the HEPA filter screen has the problems of quick failure, poor filtering effect on microparticles with smaller particle diameters and the like; the ionization comprises high-voltage static electricity, negative ion purification and the like, wherein the high-voltage static electricity is that negative high voltage is applied to a tungsten filament and discharges with a grounded polar plate, so that particles in passing air are charged with negative charges, and then the particles are collected to achieve air purification; the negative ion purification is environment optimization for purifying, dedusting, deodorizing and sterilizing air by using negative ions generated by the negative ion purification, and is different from the traditional air purifier in that the negative ions are used as action factors to actively attack and capture harmful substances in the air.
Present air purification equipment, as the disclosed oil smoke separator of chinese patent application No. 201710210035.1, produce module and collection module including the anion, exert the electric field in the collection module, make the oily dirt granule of the negatively charged through collection module move towards the positive plate under the effect of electric field force, and then make oily dirt granule adsorbed on the positive plate.
According to the air purification equipment, the contact time of negative ions generated by the negative ion generation module and particles in the air is short, the combination degree between the negative ions and the particles is low, and the purification efficiency is difficult to meet the requirement.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an air particulate matter filtering device aiming at the problems in the prior art, which can increase the contact time of negative ions and micro-particles in the air, improve the combination degree of the negative ions and the particulate matters and further improve the purification efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an air particulate matter filter equipment, includes electrically conductive filter screen device and can be connected with negative high voltage power supply's negative ion generating device, on gaseous flow path, negative ion generating device is located electrically conductive filter screen device's upper reaches, electrically conductive filter screen device includes the filter screen, the filter screen is electrically conductive filter screen, its characterized in that: the electrode metal plate is arranged between the negative ion generating device and the conductive filter screen device and can be connected with a positive high-voltage power supply, and the voltage of the positive high-voltage power supply connected with the electrode metal plate is higher than that of the positive high-voltage power supply connected with the filter screen.
Preferably, in order to improve the filtering capacity of particles of PM0.3um in the air and prolong the service life of the filter screen, the filter screen comprises a PET support body, a PP melt-spraying layer and a conductive coating formed by spraying a conductive material on the PET support body, so that the composite conductive filter screen is formed; the conductive filter screen is made of a high-voltage electret, and the capability of filtering particles is remarkably improved through high-voltage static electricity on the surface of the conductive filter screen, so that the particles of PM0.3um in the air are removed; on the other hand, bacteria carried to the surface of the filter screen can be killed in time, secondary harm is prevented, the service life of the filter screen can be prolonged, and the filter screen is green and environment-friendly.
For increase area of contact, promote the filter effect, the filter screen is the rugosity, the electrically conductive coating of filter screen is towards anion generating device.
In order to realize two states of filtration and electret by matching the anion generating device, the anion generating device comprises an anion probe and a high-voltage pack for supplying power to the anion probe, and the high-voltage pack is provided with at least two gears.
In order to enable the air curtain formed by the air and the ion wind to be in contact for a longer time and enable negative ions to be combined with micro-particles in the air more fully, a plurality of through holes arranged at intervals are formed in the electrode metal plate, and each through hole corresponds to one negative ion probe.
In order to facilitate the arrangement of the negative ion probe, the negative ion generating device further comprises a first frame and a conducting strip electrically connected with the negative ion probe, the first frame comprises a hollow outer frame and a supporting strip arranged in the outer frame, the conducting strip is arranged on the supporting strip, and the negative ion probe penetrates through the conducting strip and the supporting strip from one side close to the electrode metal plate and faces the conducting filter screen device; the high-voltage pack is electrically connected with the conducting strip so as to supply power to the negative ion probe.
In order to facilitate the arrangement of the conducting strips, each supporting strip is provided with a supporting groove which is sunken from the surface close to the electrode metal plate to the direction far away from the electrode metal plate, and the conducting strips are arranged in the supporting grooves.
In order to provide supporting force for the filter screen, the conductive filter screen device further comprises a filter screen frame, and the filter screen frame is wrapped at the periphery of the filter screen.
In order to be insulated from the whole machine, the conductive filter screen device further comprises a second frame made of an insulating material, and the filter screen frame are clamped inside the second frame.
Compared with the prior art, the invention has the advantages that: the negative ions generated by the negative ion probe are subjected to the traction force of the electrode metal plate and are opposite to the flowing direction of the gas, so that the contact time of the negative ions and the micro-particles in the air is prolonged, meanwhile, because the voltage of the electrode metal plate is higher than the voltage connected to the conductive filter screen device, an electric field in the same direction as the wind speed is formed, the negative ions are subjected to the force in the direction opposite to the wind speed in the electric field, the contact time of the negative ions and the micro-particles in the air is prolonged, the combination degree of the negative ions and the particles is improved, and the purification efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a filter device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an anion generating device and an electrode metal plate of a filter device according to an embodiment of the present invention;
FIG. 3 is an exploded view of the negative ion generator of the filter device according to the embodiment of the present invention;
FIG. 4 is a schematic structural view of a composite screen assembly of a filtration apparatus according to an embodiment of the present invention;
FIG. 5 is an exploded view of a composite screen assembly of a filter assembly according to an embodiment of the present invention;
fig. 6 is a schematic partial exploded view of a screen of a composite screen device of a filtering device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Referring to fig. 1, an air particulate filtering apparatus with an external electric field comprises an anion generating apparatus 1, a conductive filter screen apparatus 2 and an electrode metal plate 3, wherein the filtering apparatus can be arranged in a reserved pipeline of a purifying device, such as an air purifier, and on a flow path of gas, the anion generating apparatus 1 is positioned at the upstream of the conductive filter screen apparatus 2, and the electrode metal plate 3 is positioned at the upstream of the anion generating apparatus 1.
Referring to fig. 2 and 3, the negative ion generating device 1 includes a first frame 11, a high voltage pack 12, a conductive sheet 13, and a negative ion probe 14. The first frame 11 includes a hollow outer frame 111, and support bars 112 disposed in the outer frame 111, in this embodiment, the outer frame 111 is cylindrical with openings at two ends in the axial direction, the number of the support bars 112 is four, the support bars include three longitudinally extending support bars and one transversely extending support bar, and two ends of each support bar 112 extend to the inner side wall of the outer frame 111 respectively. The high voltage pack 12 is disposed on the outer frame 111 to provide a negative high voltage power supply for the negative ion probe 14.
Each support bar 112 has a support groove 113 recessed from the surface close to the electrode metal plate 3 toward the direction away from the electrode metal plate 3. A negative ion probe 114 is arranged in each supporting groove 113, and preferably, three negative ion probes 14 are uniformly arranged in each supporting groove 113, and the number of the negative ion probes is 9 (the negative ion probes 14 at the intersection of the supporting grooves 113 are shared). Each support groove 113 is further provided with one of the conductive sheets 13, and the negative ion probe 14 penetrates through the corresponding conductive sheet 13 and is electrically connected with the conductive sheet 13. The head of the negative ion probe 14 passes through the support bar 112 from the side of the first frame 11 near the electrode metal plate 3 toward the conductive filter unit 2. In the present embodiment, the conductive sheets 13 are copper sheets, the conductive sheets 13 extending in the transverse direction are electrically connected to the conductive sheets 13 extending in the longitudinal direction at the staggered positions, respectively, and one of the conductive sheets 13 extending in the longitudinal direction is electrically connected to the high voltage package 12, so as to electrically connect the negative ion probe 14 and the high voltage package 12.
The electrode metal plate 3 may be externally connected to a positive high voltage power supply, and is integrally cylindrical and adapted to the first frame 11 of the negative ion generating device 1. The electrode metal plate 3 is provided with a plurality of through holes 31 arranged at intervals, and each through hole 31 corresponds to one negative ion probe 14.
Referring to fig. 4 and 5, the conductive filter screen device 2 includes a second frame 21, a filter screen 22, and a filter screen frame 23, which are all cylindrical in this embodiment, to be fitted with the negative ion generating device 1. The second frame 21 may be of an integral structure, or as shown in the present embodiment, the second frame 21 may be formed by connecting two sub-frames, including a first sub-frame 211 and a second sub-frame 212, and the two sub-frames are coaxial and at least partially overlapped in front and back (front and back refer to the direction of the fluid flow path, and front is upstream and back is downstream) to form a complete second frame 21. The second frame 21 is made of an insulating material, such as ABS plastic, to ensure an insulating relationship with the surrounding complete machine (decontamination apparatus).
The filter 22 is a conductive filter, which is formed by spraying a layer of conductive material on the basis of the conventional HEPA filter to make it conductive without damaging its original filtering efficiency, and then folding it into a cylindrical structure, such as a cylinder (described in detail below). The filter screen 22 may be an existing conductive filter screen, or a conductive filter screen manufactured by the manufacturing method of the present invention. The filter screen frame 23 is wrapped on the periphery of the side wall of the filter screen 22. Screen frame 23 provides support strength for screen 22. The filter 22 and the filter frame 23 are engaged with each other inside the second frame 21, and when the filter is mounted, the surface of the filter 22 on which the conductive material is sprayed is placed in the direction toward the negative ion generator 1 (i.e., in the direction facing the gas flow).
Referring to fig. 6, the screen 22 includes a PET support 221, a PP meltblown layer 222, and a conductive coating 223, which are combined to form a conductive HEPA screen. Specifically, the method comprises the following steps:
① preparation of antibacterial conductive paint
Mixing and mixing the graphene slurry, deionized water and waterborne polyurethane according to a ratio, and stirring for 1-4 h; dropwise adding a defoaming agent while stirring, wherein the addition amount of the defoaming agent is 0.05-1% of the total weight of the graphene slurry, the deionized water and the waterborne polyurethane; the defoaming agent in the embodiment is defoaming agent BYK 019.
Then adding nano silver ions and chitin solution, and continuously stirring uniformly to obtain the antibacterial conductive coating;
nano silver ion: chitin solution: graphene slurry: deionized water: the proportion of the waterborne polyurethane is 1.5:4:21:21: 7-3: 10:21:21: 21;
the graphene slurry is a deionized water mixture with the solid content of graphene being 2.5 wt%; the viscosity of the graphene slurry is 0.03 pa.s; the viscosity of the aqueous polyurethane was 0.01 pa.s.
The chitin solution is a commercially available chitin finishing agent SAL 6680.
The nano silver ion is a commercial nano silver antibacterial finishing agent SILV 9700.
② preparing Filter paper
Placing the PET support 221 and the PP melt-blown layer 222 on two different conveyor belts, wherein the PET support 221 is subjected to glue dispensing through a nozzle of a glue gun, and the PET support 221 is subjected to glue dispensing through the glue gun, wherein the glue dispensing amount is 5g/m2(ii) a The PET support body 221 after the glue dispensing is adhered with the PP melt-blown layer 222 on the other conveyor belt, and after the adhesion is finished, the PET support body enters a press roll to be pressed firmly to form a fiber filter screen at the same time, and the fiber filter screen is rolled into a coiled material for standby.
The PET support 221 used in this example had a grammage of 70g/m2The PET fiber fabric of (1); the PP meltblown layer 222 is a PP nonwoven meltblown with a filament diameter of 15 microns;
③ preparing composite conductive filter screen
And (3) coating the antibacterial conductive coating prepared in the step ① on the surface of the PET support body 221 prepared in the step ② to form a conductive coating 223, wherein the thickness of the coating is 1-5 microns to obtain filter paper, folding the filter paper according to a conventional method to obtain the composite conductive filter screen with antibacterial and conductive properties, and enabling the conductive coating 223 to face outwards in the folding process.
The composite conductive filter screen prepared by the method is made of high-voltage electret, and the capability of filtering particles is obviously improved through high-voltage static electricity on the surface of the conductive filter screen, so that the particles of PM0.3um in the air are removed; on the other hand, bacteria carried to the surface of the filter screen can be killed in time, secondary harm is prevented, the service life of the filter screen can be prolonged, and the filter screen is green and environment-friendly.
In the filtering working state, the electrode metal plate 3 is connected with positive 5kv high voltage electricity, the negative ion probe 14 is connected with negative high voltage electricity, such as negative 3kv, the filter screen 22 is connected with positive high voltage, such as 3kv, the negative ions generated by the negative ion probe 14 are subjected to the traction force of the electrode metal plate 3, the direction is opposite to the gas flowing direction, the contact time of the negative ions and the micro-particles in the air is increased, meanwhile, because the voltage of the electrode metal plate 3 is higher than the voltage connected on the conductive filter screen device 2, an electric field in the same direction as the wind speed is formed, the negative ions are subjected to the force in the direction opposite to the wind speed in the electric field, the contact time of the negative ions and the micro-particles in the air is also increased, the combination degree of the negative ions and the particulate matters is improved, and the.

Claims (9)

1. The utility model provides an air particulate matter filter equipment, includes electrically conductive filter screen device (2) and can be connected with negative high voltage power supply's anion generating device (1), on gaseous flow path, anion generating device (1) is located the upper reaches of electrically conductive filter screen device (2), electrically conductive filter screen device (2) include filter screen (22), filter screen (22) are electrically conductive filter screen, its characterized in that: the electrode metal plate is characterized by further comprising an electrode metal plate (3) which is arranged between the negative ion generating device (1) and the conductive filter screen device (2) and can be connected with a positive high-voltage power supply, wherein the positive high-voltage power supply voltage connected with the electrode metal plate (3) is higher than the positive high-voltage power supply voltage connected with the filter screen (22).
2. The air particulate filter device of claim 1, wherein: the filter screen (22) comprises a PET support body (221), a PP melt-blown layer (222) and a conductive coating (223) formed by spraying a conductive material on the PET support body (221), so that the composite conductive filter screen is formed.
3. The air particulate filter device of claim 2, wherein: the filter screen (22) is folded, and the conductive coating (223) of the filter screen (22) faces the negative ion generating device (1).
4. The air particulate filter device of claim 1, wherein: the negative ion generating device (1) comprises a negative ion probe (14) and a high-voltage pack (12) for supplying power to the negative ion probe (14), wherein the high-voltage pack (12) is provided with at least two gears.
5. The air particulate filter device of claim 4, wherein: a plurality of through holes (31) arranged at intervals are formed in the electrode metal plate (3), and each through hole (31) corresponds to one negative ion probe (14).
6. The air particulate filter device of claim 4, wherein: the anion generating device (1) further comprises a first frame (11) and a conducting strip (13) electrically connected with the anion probe (14), the first frame (11) comprises a hollow outer frame (111) and a supporting strip (112) arranged in the outer frame (111), the conducting strip (13) is arranged on the supporting strip (112), and the anion probe (14) penetrates through the conducting strip (13) and the supporting strip (112) from one side close to the electrode metal plate (3) and faces the conducting filter screen device (2); the high-voltage pack (12) is electrically connected with the conducting strip (13) so as to supply power to the negative ion probe (14).
7. The air particulate filter device of claim 6, wherein: each supporting strip (112) is provided with a supporting groove (113) which is sunken from the surface close to the electrode metal plate (3) to the direction far away from the electrode metal plate (3), and the conducting strip (13) is arranged in the supporting groove (113).
8. The air particulate filtering device according to any one of claims 1 to 7, characterized in that: electrically conductive filter screen device (2) still include filter screen frame (23), filter screen frame (23) cladding is in filter screen (22) periphery.
9. The air particulate filter device of claim 8, wherein: the conductive filter screen device (2) further comprises a second frame (21) made of an insulating material, and the filter screen (22) and the filter screen frame (23) are clamped inside the second frame (21).
CN201811372029.7A 2018-11-16 2018-11-16 Air particulate matter filter equipment Active CN111195462B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811372029.7A CN111195462B (en) 2018-11-16 2018-11-16 Air particulate matter filter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811372029.7A CN111195462B (en) 2018-11-16 2018-11-16 Air particulate matter filter equipment

Publications (2)

Publication Number Publication Date
CN111195462A true CN111195462A (en) 2020-05-26
CN111195462B CN111195462B (en) 2021-12-03

Family

ID=70741106

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811372029.7A Active CN111195462B (en) 2018-11-16 2018-11-16 Air particulate matter filter equipment

Country Status (1)

Country Link
CN (1) CN111195462B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133652A (en) * 1976-05-25 1979-01-09 Makio Ishikawa Electronic air conditioner
JP2002365986A (en) * 2001-06-11 2002-12-20 Ricoh Co Ltd Imaging device
CN104785369A (en) * 2015-04-07 2015-07-22 东莞市三叠环保科技有限公司 Dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption
CN205402947U (en) * 2016-03-24 2016-07-27 浙江高鼎净化科技有限公司 High -efficient air purifier of variable voltage variable frequency electronic type
CN207342897U (en) * 2017-12-27 2018-05-11 宁波方太厨具有限公司 Anion air-cleaning facility

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133652A (en) * 1976-05-25 1979-01-09 Makio Ishikawa Electronic air conditioner
JP2002365986A (en) * 2001-06-11 2002-12-20 Ricoh Co Ltd Imaging device
CN104785369A (en) * 2015-04-07 2015-07-22 东莞市三叠环保科技有限公司 Dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption
CN205402947U (en) * 2016-03-24 2016-07-27 浙江高鼎净化科技有限公司 High -efficient air purifier of variable voltage variable frequency electronic type
CN207342897U (en) * 2017-12-27 2018-05-11 宁波方太厨具有限公司 Anion air-cleaning facility

Also Published As

Publication number Publication date
CN111195462B (en) 2021-12-03

Similar Documents

Publication Publication Date Title
CN105650741B (en) Variable-frequency variable-voltage electronic type efficient air purifier
CN201350420Y (en) Non-ozone washable electrostatic dust collector
CN102430479A (en) Electrostatic air conditioner cleaner and electric discharge device
CN105642056A (en) System for removing suspended particles from gas medium
CN103868154A (en) Semi-closed air-conditioner-companied air purifier
CN101357351A (en) No-ozone cleanable electrostatic dust collector
CN111197825B (en) Filter equipment based on electrically conductive filter screen
CN101474595A (en) Electrostatic dust collector for air purification
CN103272792B (en) The papermaking rewinding unit of electrostatic is removed in a kind of dedusting
CN111195462B (en) Air particulate matter filter equipment
CN103769299A (en) Air micro-nano particles filtering-purifying device
CN202460840U (en) Static air purifying device and discharging device
CN102814094B (en) Air filter and air purifier applying same
CN104492606A (en) Corona electrode structure of electronic dust collector
CN108286757A (en) The fresh air filter device that a kind of anion generator and electrostatic electret are combined
CN205649998U (en) Gas medium particle clean system
CN201439067U (en) Electrostatic dust collecting device for air purification
CN111197824A (en) Anion generating device and filtering device for filter screen collection
CN204276152U (en) Paper base material high-pressure electrostatic air-purifying module
CN202460832U (en) Static filer
CN214552229U (en) Filter material polarization module for air filtering device and air filtering device
CN111686936B (en) Air filter screen purifier
CN202523972U (en) Ionic group generator
CN210568909U (en) Air purification assembly
CN203750697U (en) Two-electrode barb electric coagulator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant