CN109395682A - A kind of filtering material electret device and method - Google Patents
A kind of filtering material electret device and method Download PDFInfo
- Publication number
- CN109395682A CN109395682A CN201811546817.3A CN201811546817A CN109395682A CN 109395682 A CN109395682 A CN 109395682A CN 201811546817 A CN201811546817 A CN 201811546817A CN 109395682 A CN109395682 A CN 109395682A
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- Prior art keywords
- electret
- filtering material
- electrode
- plate electrode
- pin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to a kind of filtering material electret equipment comprising: temperature control heating device, power-up pressure device, cooling device and protective device；Plate face setting of the needle point of pin electrode with respect to plate electrode and the opposite plate electrode sliding of pin electrode, are electret working space between pin electrode and plate electrode；DC power supply is connect with pin electrode, plate electrode ground connection；Filtering material to be processed is arranged on plate electrode；Protective device includes insulating boot.The work such as preheating, electret, cooling is completed in same electret working space, and device structure is compact, integrated level is high, and insulating boot protects equipment user, safe operation.Temperature is adjustable, voltage is adjustable, interpolar is away from adjustable, for different air filtration materials, adjust best electret parameter, such as temperature is adjusted to the melting temperature electret stability highest of polymer when electret, this largely relieves the waste of electret filter material, realizes the reuse of electret filtrate.
Description
Technical field
The present invention relates to polymer electret filtering material manufacturing field, especially a kind of filtering material electret equipment and side
Method.
Background technique
Currently, improving the filter efficiency of filtering material becomes research hotspot.Common high efficiency filter technology includes: with more
Layer progressive structure complex filter (the self-powered device having), electrostatic spinning preparation nano fibrous membrane, electric precipitator with
And electret filtrate.Complex filter and nanometer film can also generate a large amount of energy consumptions while with effective advantage, be used for household
There is also translucency problem when the situations such as screen window, both materials generally fall into non-renewable filter material；Electric precipitator can be periodically clear
Ash is reused, but ozone can be generated in its use process.
Electret filtrate has the characteristics that efficient low-resistance, will not generate other pollutants, therefore is widely used in filtering system
In system.For electret filtrate manufacture and reproducibility has correlative study, but existing product is mostly disposable,
Cause the great wasting of resources.
And existing equipment or manufacturing method can make the electret performance especially carrying capacity of filtering material realize maximization, also not
A variety of different filtering materials can be used to manufacture.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the present invention provides that a kind of finished product carrying capacity is big, the holding time is long and energy
Applied to different materials, structurally reasonable compact filtering material electret equipment.When a kind of big finished product carrying capacity, preservation are also provided
Between filtering material electret method that is long and can apply to different materials.
(2) technical solution
In order to achieve the above object, the present invention provides a kind of filtering material electret equipment comprising: temperature control heating device,
It is powered on pressure device, cooling device and protective device；Power-up pressure device includes DC power supply, plate electrode and pin electrode, pin electrode
Plate face setting of the needle point with respect to plate electrode and the opposite plate electrode sliding of pin electrode, it is empty for electret work between pin electrode and plate electrode
Between；DC power supply is connect with pin electrode, plate electrode ground connection；Filtering material to be processed is arranged on plate electrode, temperature control heating dress
It sets for heating and filtering material to the first set temperature, cooling device is for cold filtration material to the second set temperature；Protection
Device includes insulating boot, and insulating boot covers plate electrode, pin electrode and electret working space.
Preferably, temperature control heating device includes ontology and moving portion, and moving portion is used for plate electrode the sidesway out of insulating boot
It moves to outside；Surface potential detector is provided on the outside of insulating boot；The position of surface potential detector and plate electrode are located at insulation
Position when cover outside is opposite, and surface potential detector is used to detect the surface potential of filtering material.
Preferably, power-up pressure device includes insulation board, and insulation board includes the pin hole for clamping pin electrode；Insulation board drives
Pin electrode is slided with respect to plate electrode.
Further, insulation board includes conductive layer, the connection of conductive layer and DC power supply；Needle including passing through conductive layer
Hole, pin electrode are connect with conductive layer.
Further, disk cloth high-voltage line on insulation board, the connection of high-voltage line and DC power supply；Including passing through high-voltage line needle
Hole, pin electrode are connect with high-tension bus-bar.
Further, including lead screw gear and support rod, support rod are solid with respect to the ontology of filtering material electret equipment
Fixed, insulation board is slidably connected with support rod；Lead screw gear is for driving insulation board to slide.
Further, lead screw gear is fixed on insulating boot.
Preferably, protective device further includes discharging rod；Discharging rod includes metal bar and discharging rod ground wire, and metal bar one end is logical
Over-discharge torch ground wire is connect with the earth, and the other end includes contact head；Position of the metal bar in addition to contact head is enclosed with insulated handle.
Preferably, cooling device includes temperature-dropping fan, and temperature-dropping fan blows cold wind to electret working space, and cold wind flow direction is flat
Row is in plate electrode.
The present invention also provides a kind of filtering material electret method, using filtering material electret equipment above-mentioned, including it is as follows
Step:
Filtering material to be processed is placed on plate electrode by S1, adjusts pin electrode at a distance from plate electrode；
S2 heats filtering material to be processed, its surface temperature is made to reach T ± 5 DEG C, and T is the fusing point of filtering material；
S3 opens DC power supply, and voltage is 10kV~30kV, electret time 0.5h~2h between pin electrode and plate electrode；
S4 stops heating, keeps voltage, the filtering material surface temperature after electret is down to room temperature, obtains finished product.
(3) beneficial effect
The present invention provides a kind of filtering material electret equipment, and preheating, electret, cooling etc. work in same electret working space
Interior completion, device structure is compact, integrated level is high, and insulating boot protects equipment user, safe operation.Temperature is adjustable, and voltage is adjustable,
Interpolar for different air filtration materials, adjusts best electret parameter, such as temperature is adjusted to polymer when electret away from adjustable
Melting temperature electret stability highest, this largely relieves the waste of electret filter material, realizes electret filtrate
Reuse.
Finished product is sent out electret working space by moving portion, to finished product detection, clever structure on sending out path.
Pin hole is set on insulation board, it may be convenient to which installation and removal pin electrode is easy to adjust the position of pin electrode.
By the way that conductive layer is arranged, the relatively independent activity of pin electrode can be made, without tail end connection electric wire etc., use is more square
Just, while more wire motion spaces, more compact structure need not be reserved.
By disk cloth high-voltage line, so that device fabrication mode is simpler, cost is lower.
Support rod keeps insulation board more stable, and lead screw gear adjustment precision is stablized, can better control electrode spacing.
Lead screw gear is fixed on insulating boot, the affiliated facilities such as support frame can be removed from, saves space.
Discharging rod is used for after electret, the residual charge that each position of release device may store.
Temperature-dropping fan can quickly reduce the temperature of filtering material, and position does not conflict with power-up pressure device, ingenious
Staggeredly.
Filtering material electret method provided by the invention, can apply to different materials, can adjust interpolar distance, voltage, and
And electret temperature can be set according to the fusing point of polymer, then pass through cooling device fast cooling.It is easily multiple types
Best electret parameter is arranged in the filtering material of type, enhances electret filtrate using effect.Filtrate passes through corona near its fusing point
The method injection charge of electric discharge or orientation polarization, are then quickly down to room temperature, this can make polarization effect more firm.For difference
Material, realize its carrying capacity maximize, while as far as possible extend charge storage time.
Detailed description of the invention
Fig. 1 is a kind of front view schematic diagram of filtering material electret equipment；
Fig. 2 is the left view schematic diagram of Fig. 1；
Fig. 3 is a kind of pin electrode arrangement；
Fig. 4 is a kind of high-voltage line arrangement；
Fig. 5 is a kind of cross-sectional view schematic diagram of discharging rod.
[description of symbols]
1: pin electrode；2: filtering material；3: temperature control heating device；4: DC high-voltage power supply；5: temperature-dropping fan；6: insulation
Cover；7: support rod；8: plate electrode；9: high-voltage line；10: lead screw gear；11: surface potential detector；12: insulation board；13:
Insulated handle；14: metal bar；15: discharging rod ground wire.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
It is bright to be described in detail.
Embodiment 1
As shown in Figure 1, temperature control heating device 3 is whole to be placed in ground, upper part space is covered completely by insulating boot 6.Absolutely
Edge cover 6 can also enter the whole all covers of temperature control heating device 3.
Power-up pressure device is largely set in insulating boot 6, and DC high-voltage power supply 4 is arranged on the outside and passes through high-voltage line 9
It is connect with pin electrode 1, DC high-voltage power supply 4 is also grounded.The range of regulation of DC high-voltage power supply 4 is 0kV~30kV, and has and hit
Wear power-off, overcurrent power down function.
Plate electrode 8 is set on temperature control heating device 3, and plate electrode 8 is grounded.Support rod 7 is fixed on plate electrode 8 in Fig. 1, real
Border can also be fixed on temperature control heating device 3 or insulating boot 6.10 one end of lead screw gear is fixedly connected with insulating boot 6, another
End is connect with the center of insulation board 6.Lead-screw driving device 10 drives insulation board 12 to slide up and down along support rod 7.
Also other kinds of driving device driving insulation board 12, or one gate frame of setting can be set, driving is filled
Set be fixed on doorframe rather than insulating boot 6.
The side of insulating boot 6 offers channel, and the air outlet of temperature-dropping fan 5 and channel are tightly connected.Cold wind is transversely blown
Cross electret working space.It can certainly be the other kinds of type of cooling, such as plate electrode 8 includes cooling sandwith layer.
With reference to Fig. 2, the ontology of temperature control heating device 3 is placed in ground, and the upper half includes the upper surface of moving portion, moving portion
Fixed plate electrode 8, moving portion drive plate electrode 8 and plate electrode 8 to translate out insulating boot 6.Insulating boot 6 can be set in corresponding position
The door of one opening and closing.
Surface potential detector 11 is arranged outside insulating boot 6, and plate electrode 8 is moved to surface potential under the drive of moving portion
The lower part of detector 11, the two spacing are not less than the thickness of filtering material 2, preferably 2cm.
Shown in Fig. 3, insulation board 12 includes conductive layer and the insulating layer for clamping conductive layer.High-voltage line 9 is used in figure, actually may be used
As long as being connect using being conductive plate, brushgear etc. as conductive layer with DC high-voltage power supply 4.
Intensive on insulation board 12 to be provided with pin hole, pin electrode 1 passes through conductive layer and pin hole, exposes below insulation board 12
One section.Pin electrode 1 is connect with conductive layer, therefore when needle point and plate electrode 8 are close below, collection charge is assembled at needle point.Needle electricity
Electret working space between pole 1 and plate electrode 8 is full of electric field.
It can according to need, different number of pin electrode 1 is arranged in the different location on insulation board 12.In order to guarantee needle electricity
The tip position of pole 1 is identical, and when position block can be arranged in 1 tail end of pin electrode, or adjust every time, insulation board 12 is put
It is low, it supports needle point in the plate face of plate electrode 8, is increased again after installing.The plate face of the needle point of pin electrode 1 and plate electrode 8 it
Between the optional 0cm-15cm of adjustable range.
As shown in figure 4, high-voltage line 9 gathers on insulation board 12 at snakelike, it is also possible to the disk cloth of other shapes.
As shown in figure 5, protective device further includes discharging rod in addition to insulating boot 6, discharging rod includes a metal bar 14, metal
Stick 14 is grounded by discharging rod ground wire 15, and one layer of insulated handle 13 is wrapped up outside metal bar 14, only that the front end of metal bar 14 is sudden and violent
Expose, as contact head.The length of discharging rod ground wire 15 makes contact head touch any of filtering material electret equipment enough
Part, alternatively, making contact head touch filtering material electret equipment by the way that discharging rod ground wire 15 to be connected to different grounding points
Arbitrary portion.
Using above equipment to the method for filtering material electret, in the following example:
Embodiment 2:
S1, raw material 2 are PTFE (Poly tetra fluoroethylene, polytetrafluoroethylene (PTFE)) Nomex, and PTFE is placed
On plate electrodes 8, insulating boot 6 is closed, adjusts pin electrode 1 at a distance from plate electrode 8 to 2cm；
S2 opens temperature control heating device 3, heats PTFE, its surface temperature is made to reach 300 DEG C；
S3 opens DC high-voltage power supply 4, and voltage is 15kV, electret time 2/3h between pin electrode 1 and plate electrode 8；
S4 closes temperature control heating device 3, keeps DC high-voltage power supply 4, opens temperature-dropping fan 5, PTFE surface temperature is dropped
To room temperature, finished product is obtained；
S5 pulls out plate electrode 8 from insulating boot 6, detects final product quality using surface potential detector 11,
If qualified, finished product is taken out；
If unqualified, repeatedly S1-S5.
Embodiment 3:
S1, raw material 2 are P84 (polyimides) filtering material, and P84 is placed on plate electrodes 8, close insulating boot 6,
Needle electricity 1 is adjusted at a distance from plate electrode 8 to 2cm；
S2 opens temperature control heating device 3, heats P84, its surface temperature is made to reach 350 DEG C；
S3 opens DC high-voltage power supply 4, and voltage is 18kV, electret time 1.5h between pin electrode 1 and plate electrode 8；
S4 closes temperature control heating device 3, keeps DC high-voltage power supply 4, opens temperature-dropping fan 5, P84 surface temperature is dropped
To room temperature, finished product is obtained；
S5 pulls out plate electrode 8 from insulating boot 6, detects final product quality using surface potential detector 11,
If qualified, finished product is taken out；
If unqualified, repeatedly S1-S5.
Embodiment 4:
Used finished product filtrate, is first cleaned and dried, then execute S1-S5.
Upper embodiment is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and this specification should not be construed as to limit of the invention
System.
Claims (10)
1. a kind of filtering material electret equipment characterized by comprising temperature control heating device, power-up pressure device, cooling device and
Protective device；
Power-up pressure device includes DC power supply, plate electrode and pin electrode, the needle point of pin electrode be arranged with respect to the plate face of plate electrode and
Pin electrode is slided with respect to plate electrode, is electret working space between pin electrode and plate electrode；
DC power supply is connect with pin electrode, plate electrode ground connection；
Filtering material to be processed is arranged on plate electrode, and temperature control heating device is for heating and filtering material to the first setting temperature
Degree, cooling device is for cold filtration material to the second set temperature；
Protective device includes insulating boot, and insulating boot covers plate electrode, pin electrode and electret working space.
2. filtering material electret equipment as described in claim 1, it is characterised in that: temperature control heating device includes ontology and movement
Portion, moving portion are used for plate electrode from insulating boot medial movement to outside；
Surface potential detector is provided on the outside of insulating boot；
The position when position of surface potential detector is located on the outside of insulating boot with plate electrode is opposite, and surface potential detector is used for
Detect the surface potential of filtering material.
3. filtering material electret equipment as described in claim 1, it is characterised in that: power-up pressure device includes insulation board, insulation
Plate includes the pin hole for clamping pin electrode；
Insulation board drives pin electrode to slide with respect to plate electrode.
4. filtering material electret equipment as claimed in claim 3, it is characterised in that: insulation board includes conductive layer, conductive layer with
The connection of DC power supply；
Pin hole including passing through conductive layer, pin electrode are connect with conductive layer.
5. filtering material electret equipment as claimed in claim 3, it is characterised in that: disk cloth high-voltage line, high-voltage line on insulation board
With the connection of DC power supply；
Including passing through high-voltage line pin hole, pin electrode is connect with high-tension bus-bar.
6. filtering material electret equipment as claimed in claim 3, it is characterised in that: including lead screw gear and support rod,
Support rod is fixed with respect to the ontology of filtering material electret equipment, and insulation board is slidably connected with support rod；
Lead screw gear is for driving insulation board to slide.
7. filtering material electret equipment as claimed in claim 6, it is characterised in that: lead screw gear is fixed on insulating boot.
8. filtering material electret equipment as described in claim 1, it is characterised in that: protective device further includes discharging rod；
Discharging rod includes metal bar and discharging rod ground wire, and metal bar one end is connect by discharging rod ground wire with the earth, other end packet
Include contact head；
Position of the metal bar in addition to contact head is enclosed with insulated handle.
9. filtering material electret equipment as described in claim 1, it is characterised in that: cooling device includes temperature-dropping fan, cooling
Blower blows cold wind to electret working space, and cold wind flow direction is parallel to plate electrode.
10. a kind of filtering material electret method, which is characterized in that stayed using the filtering material as described in claim 1-9 is any
Pole equipment, includes the following steps:
Filtering material to be processed is placed on plate electrode by S1, adjusts pin electrode at a distance from plate electrode；
S2 heats filtering material to be processed, its surface temperature is made to reach T ± 5 DEG C, and T is the fusing point of filtering material；
S3 opens DC power supply, and voltage is 10kV~30kV, electret time 0.5h~2h between pin electrode and plate electrode；
S4 stops heating, keeps voltage, the filtering material surface temperature after electret is down to room temperature, obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546817.3A CN109395682A (en) | 2018-12-18 | 2018-12-18 | A kind of filtering material electret device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546817.3A CN109395682A (en) | 2018-12-18 | 2018-12-18 | A kind of filtering material electret device and method |
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| Publication Number | Publication Date |
|---|---|
| CN109395682A true CN109395682A (en) | 2019-03-01 |
Family
ID=65459709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811546817.3A Pending CN109395682A (en) | 2018-12-18 | 2018-12-18 | A kind of filtering material electret device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332221A (en) * | 2020-11-11 | 2021-02-05 | 北京英华高科技环保有限公司 | Electret charged restoration equipment and method |
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Application publication date: 20190301 |