CN105756750B - A kind of gas cleaning plant - Google Patents
A kind of gas cleaning plant Download PDFInfo
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- CN105756750B CN105756750B CN201410778602.XA CN201410778602A CN105756750B CN 105756750 B CN105756750 B CN 105756750B CN 201410778602 A CN201410778602 A CN 201410778602A CN 105756750 B CN105756750 B CN 105756750B
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Abstract
The invention discloses a kind of gas cleaning plants based on friction generator, using flexible vibration membrane structure, flexible diaphragm is formed using the flowing of gas and is disturbed, so that flexible diaphragm occurs to vibrate and is in contact and detaches with electrode unit, to constitute friction generator and drive its real-time working, the high voltage electric field of formation is removed the particulate matter in gas by electrostatic adsorption.The gas cleaning plant of the present invention is not necessarily to power supply, the energy of flow of air-flow itself is dexterously utilized to drive, have many advantages, such as that simple in structure, at low cost, pollution-free, adsorption efficiency is high and can be recycled, it is applied in the processing of motor-vehicle tail-gas, PM1.0, PM2.5, PM5.0 and PM10.0 etc. in tail gas can be caused the particulate matter of haze effectively absorb and filter.
Description
Technical field
The present invention relates to Air haze prevention and control fields, and in particular, to a kind of gas purification dress based on friction generator
It sets.
Background technology
Severe haze weather occurred again and again in China in recent years.Haze not only causes air muddiness, visibility to dislike
Change, influence safety, also results in the respiratory tract infection of people and the generation of angiocardiopathy, seriously injure the health of the mankind
And life.
The main following several classes of mode of current state treatment haze：It reduces the discharge of industrial waste gas and vehicle exhaust, improve
The quality and rain making etc. of fuel oil and coal.Government also takes a series of behave to respond the improvement of haze, such as closes
Contaminating enterprises, eliminate underproof motor vehicle, limiting vehicle licence plate, vehicle odd-and-even license plate rule, strictly monitor fuel oil quality, to
Sky sprays water mist etc..These methods administered there are the problem of be exactly palliative, cost is big and effect unobvious, greatly
The enterprise close of amount causes large area population to be unemployed and causes the loss that can not be estimated to national economy growth.Therefore from root
On do, find accurately pollution sources it is carried out absorption processing be only a preferable road.
The mainly ingredient of haze is sulfur dioxide, nitrogen oxides and pellet dust, wherein inhalable particles
Kernel of the object as suspended matter is the factor to form haze most critical.If pellet in various emissions can be reduced
Content, it will play the role of to the elimination of haze huge.But technical costs at present in this respect is all very high, and
It is substantially the circulating purification system for the large-scale processing equipment of plant emissions or for room air, for motor vehicle
The treatment technology of equal miniature movable types emission source has not been reported.
Invention content
In order to solve the above problem in the prior art, the object of the present invention is to provide a kind of completely new gas purification dresses
It sets, absorption and filtering for solving the problems, such as particulate in air are particularly suitable for the row of the packaged types equipment such as motor vehicle
Put object processing.
To achieve the goals above, the present invention provides a kind of gas cleaning plant, which is characterized in that including：First it is outer every
Plate, the second external partition, 2 or more electrode units, 2 or more flexible diaphragms and film fixing piece；First external partition
It is arranged in face of face interval with the second external partition, intermediate gap forms gas flow；First external partition and the second external partition
The electrode unit is fitted on side towards the gas flow, each electrode unit is in opposite bulkhead sides,
There are one all identical electrode unit of size and shape, face face interval is arranged therewith, forms an electrode unit group, Mei Ge electricity
It is dielectrically separated between pole unit group；Each electrode unit group matches one flexibility of setting in the gas flow and shakes
Dynamic film, one end of the flexible diaphragm are fixed on the film fixing piece, and the other end along gas flow direction is free end,
So that the flexible diaphragm can be in contact under the influence of gas with 2 electrode unit surfaces of respective electrode unit group
And separation；The material of the electrode unit has different triboelectric characteristics from the surfacing of the flexible diaphragm；
Preferably, further include several intermediate bulkheads, the intermediate bulkhead is arranged at intervals on first external partition and second
Between external partition, 2 or more gas flows are formed, are fitted with the electrode unit in the both sides of the intermediate bulkhead, each
Electrode unit is in opposite bulkhead sides, and there are one all identical electrode unit of size and shape, face face interval is set therewith
It sets, forms an electrode unit group；
Preferably, the relative distance and adjustable angle between partition board described in any two；
Preferably, all partition boards are arranged in parallel；
Preferably, the size and shape of each intermediate bulkhead are identical, and the spacing between adjacent two partition board is identical；
Preferably, the surface of the partition board is made of insulating materials；
Preferably, the material of the electrode unit is selected from metal, conductive oxide or organic conductor；
Preferably, the thickness of the electrode unit is 20nm-2mm；
Preferably, the shape of each electrode unit is identical；
Preferably, the electrode unit is projected as rectangle on the partition board being bonded, and length-width ratio is more than or equal to 2:
1, wherein being length direction along gas flow direction；
Preferably, the size of each electrode unit is identical；
Preferably, on the same partition board, each electrode unit is in determinant array distribution, wherein gas flow direction
For column direction；
Preferably, in the insulation barrier of the both sides setting and the divider upright of each row electrode unit, thus will
The gas flow is separated；
Preferably, the gas flow is divided into several independent branch flow passages by the insulation barrier；
Preferably, two opposite electrode unit spacing are 0.2cm-5cm in each electrode unit group；
Preferably, the surface of the flexible diaphragm is insulating materials；
Preferably, the thickness of the flexible diaphragm is 1 μm of -1mm；
Preferably, surface of the flexible diaphragm towards the electrode unit is rectangle, and length-width ratio is more than or equal to 2:
1, wherein gas flow direction is length direction；
Preferably, polarization process is passed through on the surface that the flexible diaphragm is contacted with the electrode unit, and/or, surface
It is provided with micro-structure, which is used to increase effective contact area of the flexible diaphragm and the electrode unit；
Preferably, the distance between each film fixing piece and two adjacent separators of the composition gas flow phase
Together；
Preferably, the film fixing piece includes shaft and clamping plate, and the Boards wall is in shaft and can surround and turns
Axis rotates, and the flexible diaphragm is connect by the clamping plate with the film fixing piece；
Preferably, further include deflector, the direction of the gas flow is entered for adjusting gas；
Preferably, further include shell, the shell has air inlet, gas outlet and a cavity, first external partition, outside second
Partition board and intermediate bulkhead are located in the cavity；
Preferably, further include shell, the shell has air inlet, gas outlet and a cavity, first external partition, outside second
Partition board, intermediate bulkhead and deflector are located in the cavity；
Preferably, strainer is installed between the air inlet and deflector；
Preferably, the shell is made of insulating material；
Preferably, the shell is detachable structure.
The present invention also provides a kind of motor-vehicle tail-gas purifying devices, including any of the above-described gas cleaning plant.
The present invention also provides a kind of motor-vehicle tail-gas purifying devices, including any of the above-described kind of gas cleaning plant, wherein institute
Air inlet is stated with the exhaust outlet of the motor vehicle to be connected.
Through the above technical solutions, the beneficial effects of the invention are as follows：The gas cleaning plant of the present invention has at low cost, nothing
The advantages that pollution, adsorption efficiency are high and can be recycled, is installed on vehicle, can by vehicle exhaust PM1.0,
PM2.5, PM5.0 and PM10.0 etc. cause the particulate matter of haze effectively absorb and filter.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic top plan view of critical piece in gas cleaning plant typical structure of the present invention；
Fig. 2 is the schematic elevation view of critical piece in gas cleaning plant typical structure of the present invention；
Fig. 3 is the fundamental diagram of gas cleaning plant of the present invention；
Fig. 4 is the schematic top plan view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Fig. 5 is a kind of typical structure schematic diagram of film fixing piece in gas cleaning plant of the present invention；
Fig. 6 is the schematic elevation view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Fig. 7 is the schematic elevation view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Fig. 8 is the schematic top plan view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Fig. 9 is the schematic elevation view of critical piece in gas cleaning plant shown in Fig. 8；
Figure 10 is the schematic elevation view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Figure 11 is the schematic elevation view of critical piece in gas cleaning plant another kind typical structure of the present invention；
Figure 12 is the schematic elevation view of critical piece in gas cleaning plant another kind typical structure of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " refers to the side in diagram
To；"inner" refers to towards inside corresponding construction, and "outside" refers to towards outside corresponding construction.
Fig. 1 and it is shown in Fig. 2 be gas cleaning plant of the present invention a kind of typical structure, wherein Fig. 1 is critical piece
Vertical view, Fig. 2 are the front view of critical piece.The device includes：First external partition 101, the second external partition 102,2 or more
The flexible diaphragm 30 and film fixing piece 40 of electrode unit 20,2 or more；First external partition 101 and the second external partition 102 face
Face interval is arranged, and intermediate gap forms gas flow；In the first external partition 101 and the second external partition 102 towards gas flow
Side on fitting several electrode units 20 are set, each electrode unit 20 is in opposite bulkhead sides, and there are one sizes
20 face face interval setting therewith of electrode unit all identical with shape, forms an electrode unit group, each electrode unit group
Between be dielectrically separated from；Each electrode unit group matches one flexible diaphragm 30 of setting, flexible diaphragm 30 in gas flow
One end be fixed on film fixing piece 40, along gas flow direction the other end be free end so that flexible diaphragm 30 is in gas
It can be in contact and detach with 2 20 surfaces of electrode unit of respective electrode unit group under the action of body；Electrode unit 20
Material has different triboelectric characteristics from the surfacing of flexible diaphragm 30.
Material friction electrical characteristics involved in the present invention refer to that a kind of material is occurring friction with other materials or contacting
The receiving and losing electrons ability shown in the process, i.e., one positively charged, band when two different materials are in contact or rub
Negative electricity, illustrate both materials obtains electronic capability difference, that is, the triboelectric characteristics of the two are different.For example, polymer nylon
When contact with aluminium foil, surface is positively charged, i.e. betatopic ability is stronger, polymer poly tetrafluoroethene contacted with aluminium foil when
It waits, surface is negatively charged stronger to get electronic capability.
Gas in present embodiment, more particularly to vehicle exhaust, corresponding particulate matter include mainly in vehicle exhaust
PM1.0, PM2.5, PM5.0 and PM10.0 etc. cause the particulate matter of haze, but are not limited to these particulate matters, other cause air
The particulate matter of haze is also within the scope of the present invention.
In present embodiment, electrode plate 20 and flexible diaphragm 30 substantially constitute a friction generator, substantially former
Reason is as shown in Figure 3：When air-flow enters the gas flow formed by upper and lower two electrode units 20, flexible diaphragm 30 can be made
At disturbance so that flexible diaphragm 30 two electrode units (for convenience distinguish, be here labeled as 201 and 202) between send out
Being contacting and separating repeatedly occurs for raw vibration, surface and electrode unit 201 and 202, due to flexible diaphragm 30 surface with
The surface of electrode unit 201 and 202 has different triboelectric characteristics so that the two can be in two kinds of materials during contact
Surface be respectively formed opposite surface charge, when two kinds of materials detach, these surface charges can in electrode unit 201 or
Electrostatic field is formed between 202 and flexible diaphragm 30.The presence of these electrostatic fields can promote the particle in air-flow to be adsorbed, from
And gas purification is achieved the purpose that.It can be seen that air-flow itself is dexterously utilized to flexible diaphragm in the device of the invention
Disturbance form electric field, without externally fed electrostatic precipitation can be realized, overall structure is simple, is readily cleaned, and has very
Strong practicability.
Each component part of gas cleaning plant of the present invention is described in detail below with reference to present embodiment, still
It will be apparent to those skilled in the art, these explanations are not merely directed to present embodiment, but to all realities of the present invention
It applies mode to be applicable in, this style of writing mode is convenienct and succinct just for the sake of describing.
First external partition 101 and the second external partition 102 are mainly used for constituting gas flow and provide branch for electrode unit 20
Support, generally hard material, in special circumstances also applicable elastic material.To ensure the uniform of each 20 surface charge of electrode unit
Distribution, the surface of partition board is preferably insulating materials, and organic polymer material commonly used in the art can be selected.Partition board either
The multilayered structure that the homogeneous structural that homogenous material is formed can also be of the same race or different materials are formed, to meet different mechanics
Or the requirement of other properties.The distance between 2 partition boards and angle can be adjusted according to actual conditions, such as can be flat
Capable or at an angle, distance between the two should meet fully connecing between flexible diaphragm 30 and electrode unit 20
It touches and detaches.The shape of first external partition 101 and the second external partition 102 is not particularly limited, and can be tablet or curved slab.Two
The size of person can be the same or different.In Fig. 1 and embodiment shown in Fig. 2, two partition boards are the identical plane of size
Rectangular slab, right opposite are placed in parallel, this is only a kind of realization method, in practical operation, shape, size and the opposite position of partition board
Setting can be adjusted.
Electrode unit 20 should have conductive outer surface, material that can be selected from metal, alloy, conductive oxide or organic
Conductor.It is preferred that using one of metal or alloy material, including aluminium, copper, Jin Heyin or the arbitrary proportion alloy of more persons,
Preferably aluminium.Electrode unit 20 is fitted on the first external partition 101 and the second side of the external partition 102 towards gas flow.Electricity
The thickness of pole unit 20 is generally 20nm-2mm, preferably 100nm-1mm, more preferably 500nm-500 μm.Include in the present apparatus
2 or more electrode units 20 are distributed on two partition boards, and each electrode unit 20 on a partition board is on opposite partition board
There are one another electrode unit 20 of shape and size all same, face face interval is arranged therewith, two such electrode unit
20 have collectively constituted an electrode unit group, are acted on jointly with flexible diaphragm 30, constitute required friction generator.Arbitrary two
It is dielectrically separated between a adjacent electrode unit 20, to ensure to be dielectrically separated between each electrode unit group.Each electricity
The electrode unit spacing of two right opposites in pole unit group be 0.2cm-5cm, preferably 0.5cm-3cm, more preferably
0.8cm-1.5cm。
Although two electrode units 20 in each electrode unit group need shape and size all same, it is not required for
The shape and size all same of electrode unit 20 in Different electrodes unit group.In other words, the electricity in Different electrodes unit group
What the shape and size of pole unit 20 may be the same or different, such as can be rectangle with one group, another group is circle.Fig. 4
Shown in embodiment, used the electrode unit 201,202 and 203 of 3 kinds of different shapes and size, and these electrode lists
The arrangement mode of member is also different, facilitates the distribution according to airflow field in gas flow to adjust the position of electrode unit, to realize
Best gas purifying effect.Preferred electrode unit 20 of the present invention is projected as rectangle, and length and width on the partition board being bonded
Than (length：Width) it is more than or equal to 2:1, it is length direction that the present invention, which defines gas flow direction,.When the ruler of each electrode unit 20
Likewise it is preferred that these electrode units 20 are in determinant array distribution on the same partition board, wherein gas flow direction is very little phase
Column direction.Structure regular in this way is convenient for batch machining.
Flexible diaphragm 30 is another important component in purifier of the present invention, and the most key feature is flexibility, i.e.,
It can be vibrated under the disturbance of air-flow, to be in contact and detach with electrode unit 20.It is flexible to ensure, it should not mistake
Thickness, generally 1 μm of -1mm, preferably 10 μm -500 μm, more preferably 50 μm -200 μm.In addition to this, the flexible diaphragm 30
Outer surface should from the surfacing of electrode unit 20 have different triboelectric characteristics, could really constitute in this way friction hair
Motor simultaneously makes its normal work.The present invention preferably its surface is made of insulating materials material, especially organic polymer material, this
A little materials are the common used material of this field, and the common friction material especially in friction generator can be from llowing group of materials
In arbitrarily select：It amine-formaldehyde resins, polyformaldehyde, ethyl cellulose, polyamide nylon 11, polyamide nylon 66, wool and its knits
Object, silk and its fabric, paper, polyethylene glycol succinate, cellulose, cellulose acetate, polyethyleneglycol adipate, poly- neighbour
Dially phthalate, regenerated cellulosic sponge, cotton and its fabric, polyurethane elastomer, styrene-acrylonitrile copolymer,
Styrene-butadiene copolymer, hard rubber, acetate, staple fibre, polymethyl methacrylate, polyvinyl alcohol, is gathered wood
Ester, polyisobutene, elastic polyurethane sponge, polyethylene terephthalate, polyvinyl butyral, butadiene-acrylonitrile
Copolymer, neoprene, natural rubber, polyacrylonitrile, poly- (vinylidene chloride-co- acrylonitrile), poly bisphenol carbonic ester, polychlorostyrene
Ether, polyvinylidene chloride, poly- (2,6- dimethyl polyphenylene oxide), polystyrene, polyethylene, polypropylene, poly- diphenyl
Propane carbonic ester, polyethylene terephthalate, polyimides, polyvinyl chloride, dimethyl silicone polymer, poly- trifluoro chloroethene
Alkene, polytetrafluoroethylene (PTFE) and Parylene.
Flexible diaphragm 30 is located in the gap between two electrode units of each electrode unit group, namely in gas stream
In road, one end is fixing end, is fixed by film fixing piece 40, and the other end is free end, the direction flowed along gas
Extend so that gas stream is out-of-date to carry out effective disturbance to it, cause flexible diaphragm 30 and the contact of electrode unit 20 and divide
From.For the contact area for improving between flexible diaphragm 30 and electrode unit 20, the preferably shape and size of flexible diaphragm 30
Match with the shape and size on surface of the electrode unit 20 towards gas flow, both general shape is same or similar, ruler
Very little upper flexible diaphragm 20 also should be close with electrode unit 20, can it is slightly larger can also be slightly smaller.It is preferred that flexible diaphragm 30 towards
The surface of electrode unit 20 is rectangle, length-width ratio (length：Width) it is more than or equal to 2:1, the present invention defines gas flow direction
For length direction.Identical with electrode unit 20, the size of each flexible diaphragm 30 can be the same or different, referring to Fig. 1 and
Fig. 4.
In order to improve the surface charge density generated after flexible diaphragm 30 is contacted with electrode unit 20, flexibility can be shaken
The surface of dynamic film is polarised, or micro-structure is arranged on its surface, to increase flexible diaphragm 30 and electrode unit
20 effective contact area.Both processing modes can use simultaneously, and one kind can also be used alone, with specific reference to practical feelings
Condition determines.The micro-structure is preferably nano wire, nanotube, nano particle, nanometer rods, nano flower, nanometer channel, micron ditch
Slot, nanocone, micron cone, nanosphere and micron chondritic, and the array that is formed by aforementioned structure, especially by nanometer
The nano-array of line, nanotube or nanometer rods composition, can be the threadiness prepared by the methods of photoengraving, plasma etching,
The array of cube or rectangular pyramid shape, the size of each this unit is in nanometer to micron dimension, specific micro-nano in array
Unit size, the shape of rice structure should not limit the scope of this invention.
Film fixing piece 40 is used to fix one end of flexible diaphragm 30, in order to improve sensitivity of the flexible diaphragm to air-flow
Property, shaft and clamping plate can be used to collectively form film fixing piece 40.For details, reference can be made to Fig. 5, one end of clamping plate 401 is sleeved on shaft
On 402, other end clamping flexible diaphragm 30 is allowed to fixed, and clamping plate 401 can surround shaft 402 and rotate.Certainly, this is only
A kind of specific implementation mode, this field also much may be implemented the other modes of the object of the invention, cannot repeat one by one herein,
But the selection of these usual manners can not bring creativeness to technical solution, therefore belong to the model that the present invention is covered
It encloses.
The position of film fixing piece 40 is normally in gas flow, preferably with two adjacent separators constituting gas flow
Apart from identical, even if the fixing end of flexible diaphragm 30 is located at the centre of gas flow.If the weight phase of flexible diaphragm 30
To larger, which can adjust.
Fig. 6 is another typical structure schematic diagram of gas cleaning plant of the present invention, in Fig. 1 and Fig. 2 illustrated embodiments
On the basis of, further include several intermediate bulkheads 103.The intermediate bulkhead 103 be arranged at intervals on the first external partition 101 and second it is outer every
Between plate 102, original gas flow is divided into 2 or more multi-layer gas runners.And the both sides patch of each intermediate bulkhead
Conjunction has electrode unit 20, the setting requirements of the electrode unit 20 with it is aforementioned on the first external partition 101 and the second external partition 102
Setting requirements are identical, i.e., each electrode unit is on opposite partition board, and there are one all identical electrode units of size and shape
Face face interval is arranged therewith, forms an electrode unit group, is also to be dielectrically separated between these electrode unit groups.
Limitation and requirement to intermediate bulkhead 103 is identical as 101 and second external partition 102 of aforementioned first external partition, such as
Surfacing is insulating materials, the embodiment that the relative distance and angle between adjacent separator are all adjustable, as shown in Figure 7,
Adjacent separator is not to be arranged in parallel, but at an angle.Shape and size are not particularly limited, preferably each intermediate bulkhead
103 shape and size are identical, and the spacing between adjacent two partition board is identical.Due to the first external partition 101 and second it is outer every
Plate 102 may be used as shell, therefore not limiting its shape and size must be identical as intermediate bulkhead 103.It is not precluded
First external partition 101 and the second external partition 102 are for curved slab and the case where intermediate bulkhead 103 is surface plate.
Present embodiment forms the gas flow of stereoscopic multi-layer, can realize larger treating capacity and preferably purification effect
Fruit.The number of intermediate bulkhead can be determined according to actual needs.
Fig. 8 is another typical structure schematic diagram of gas cleaning plant of the present invention, in Fig. 1 and embodiment party shown in Fig. 2
On the basis of formula, in the insulation barrier 70 of the both sides of each row electrode unit 20 setting and divider upright, thus by the gas
Runner is separated.The insulation barrier 70 can both extend to the table of another partition board on the other side from the surface of a partition board
The gas flow of script connection is divided into several independent branch flow passages (referring to Fig. 9) by face；Can also only with a partition board
Connect, it is not fully independent between each branch flow passage.
The surface of insulation barrier 70 should be insulating materials, and shape and size can be adjusted according to actual conditions.If
The main purpose for setting insulation barrier 70 is in order to adjust airflow direction and intensity, to realize better gas purifying effect.
The present invention also provides another ways to carry out the gas flow in adjusting apparatus, i.e., enters electrode unit group in gas
At least one deflector 60 (reference can be made to Figure 11) is set before.Structure commonly used in the art may be used in the deflector 60, is
Air flow direction is preferably controlled, at least one gas port can be set on the deflector 60.It is preferred that deflector 60 and electrode list
First 20 orthogonal settings.The material on 60 surface of deflector can be hard insulation, such as acrylic, plastics etc..
Figure 10 is another typical structure schematic diagram of gas cleaning plant of the present invention, is increased on the basis of aforementioned structure
Shell 50, the shell are cavity structure, there is air inlet 501 and gas outlet 502, the first external partition 101, the second external partition 102
Each component with intermediate bulkhead 103 and thereon is respectively positioned in the cavity of shell 50, if there is deflector 60, then it is preferred that deflector
60 also are located in cavity, and between air inlet 501 and partition board.The embodiment makes its tool as a result of shell 50
The characteristics of being easily installed and carrying.
Air inlet 501 and gas outlet 502 can be made of common gas-guide tube, and air pipe material can be that metal or high temperature resistant polymerize
Object material.The position of air inlet 501 and gas outlet 502 can be configured according to practical situations, may be provided at the shell
50 the same side may also be arranged on the both sides of the shell 50.It, can also be in the air inlet 501 to filter out the moisture in air-flow
Upper setting drying device or condensing unit (being not drawn on the way), the drying device are the internal seal box that desiccant particle is housed
Son, the desiccant particle can be physisorption type drier, such as silica gel, molecular sieve desiccant or chemisorption
Type drier, such as calcium chloride or calcium sulfate；The condensing unit is common condenser pipe.
In structure shown in Fig. 10, the first external partition 101 and the second external partition 102 make directly as the side wall of shell 50
With, but this it is not necessary to, the side wall of shell can be separately provided in other embodiments, and the first external partition 101
The inside of its side wall is directly attached to the second external partition 102.When directly fitting electrode unit 20 on the side wall of shell 50
When, surface should be made of insulating material, which includes at least one of plastics and acrylic board.In other feelings
Under condition, shell can also be metal material or semi-conducting material.
Shell 50 is detachable structure, to carry out the cleaning of flexible diaphragm 30, electrode unit 20 or deflector 60.
The shape of shell 50 herein and is not specifically limited, although shell rectangular cross-section shown in Figure 10, is being actually used
In can be adjusted according to airflow condition and installation site, such as structure as shown in figure 12 may be used, in gas stream
Enter end and the structure of class frustum type is respectively adopted in gas outflow end, to adjust air-flow.
In view of the larger particulate matter of volume in air-flow can be filtered out before air-flow enters electrode unit group, can into
Strainer is installed between gas port 501 and deflector 60.The strainer can be metal screen, can also be made of nonmetallic materials.
Regardless of whether setting deflector 60, air inlet 501 and gas outlet 502 can be in the homonymies of shell 50, can also
In the not homonymy of shell 50, can be designed according to the facilities of 50 shape of shell and deflector 60.
According to above-mentioned gas cleaning plant, the present invention also provides a kind of motor-vehicle tail-gas purifying devices, by above-mentioned
A kind of gas cleaning plant of anticipating is constituted, wherein for the embodiment without shell 50, may be mounted at motor vehicle exhaust
Inside, by automobile exhaust pipe as its shell；It, can be by air inlet 501 and machine for including the embodiment of shell 50
The exhaust outlet of motor-car is directly connected to, and the tail gas that motor vehicle is discharged when working will be directly entered purifier by air inlet, is driven
Flexible diaphragm 30 in dynamic purifier vibrates, and constituting friction generator with electrode unit 20 generates electricity, and generates high
Piezoelectric field carries out Electrostatic Absorption, to achieve the purpose that gas purification to the particulate matter in gas.
Therefore, it is known that gas dust-removing device of the invention is at low cost, pollution-free, adsorption efficiency is high and can be recycled
The advantages that, it is applied on motor vehicle, PM1.0, PM2.5, PM5.0 and PM10.0 etc. in vehicle exhaust can be caused mist
The particulate matter of haze effectively absorb and filter.
Embodiment
Electrode unit group number：3 × 4 × 4=48；Flexible diaphragm by 100 μm of flexible polyimide, (write a Chinese character in simplified form by English
Kapton it) forms, the surfaces kapton etch nanostructure, size by ICP：1.9cm×3.4cm×1.9cm；First it is outer every
Plate, the second external partition, intermediate bulkhead and insulation barrier are made of the acrylic board of thickness 2mm, and electrode unit uses 0.2mm metals
Aluminium；Deflector has diameter 4mm gas ports 12 using thickness 3mm acrylic boards and on surface, and entire shell is by metal aluminum foil
(0.4mm) is formed；Air inlet and gas outlet diameter 2cm.
Filter effect：Voltage 400V or more between single electrode unit group and flexible diaphragm, to vehicle exhaust
PM2.5, PM5.0, PM10.0 filter efficiency are more than 85%.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.For example, the variation of the shape, material and size of each component.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (29)
1. a kind of gas cleaning plant, which is characterized in that including：
First external partition, the second external partition, 2 or more electrode units, 2 or more flexible diaphragms and film fixing piece；
First external partition and the second external partition are arranged in face of face interval, and intermediate gap forms gas flow；
First external partition and the second external partition are fitted with the electrode unit on the side towards the gas flow, each
Electrode unit is in opposite bulkhead sides, and there are one all identical electrode unit of size and shape, face face interval is set therewith
It sets, forms an electrode unit group, be dielectrically separated between each electrode unit group；
Each electrode unit group matches one flexible diaphragm of setting, the flexible vibration in the gas flow
One end of film is fixed on the film fixing piece, and the other end along gas flow direction is free end so that the flexible vibration
Film can be in contact and detach with 2 electrode unit surfaces of respective electrode unit group under the influence of gas；
The surfacing of the electrode unit has different triboelectric characteristics from the surfacing of the flexible diaphragm.
2. the apparatus according to claim 1, which is characterized in that further include several intermediate bulkheads, the intermediate bulkhead interval
It is arranged between first external partition and the second external partition, 2 or more gas flows is formed, the two of the intermediate bulkhead
Side is fitted with the electrode unit, and each electrode unit is in opposite bulkhead sides, and there are one size and shape is all identical
Electrode unit therewith face face interval be arranged, formed an electrode unit group.
3. the apparatus of claim 2, which is characterized in that first external partition, second external partition and described
Arbitrary relative distance and adjustable angle between the two in intermediate bulkhead.
4. the apparatus of claim 2, which is characterized in that first external partition, second external partition and described
Intermediate bulkhead is arranged in parallel.
5. the apparatus of claim 2, which is characterized in that the size and shape of each intermediate bulkhead are identical, and
Spacing between adjacent two partition board is identical.
6. the apparatus of claim 2, which is characterized in that first external partition, second external partition and described
Surface in intermediate bulkhead is made of insulating materials.
7. according to claim 1-6 any one of them devices, which is characterized in that the material of the electrode unit be selected from metal,
Conductive oxide or organic conductor.
8. according to claim 1-6 any one of them devices, which is characterized in that the thickness of the electrode unit is 20nm-
2mm。
9. according to claim 1-6 any one of them devices, which is characterized in that the shape of each electrode unit is identical.
10. device according to claim 9, which is characterized in that projection of the electrode unit on the partition board being bonded
For rectangle, and length-width ratio is more than or equal to 2:1, wherein being length direction along gas flow direction.
11. device according to claim 9, which is characterized in that the size of each electrode unit is identical.
12. according to claim 1-6 any one of them devices, which is characterized in that on the same partition board, each electrode list
Member is in determinant array distribution, and wherein gas flow direction is column direction.
13. device according to claim 12, which is characterized in that the both sides setting in each row electrode unit and institute
State the first external partition, second external partition and the vertical insulation barrier of the intermediate bulkhead.
14. device according to claim 13, which is characterized in that if the gas flow is divided by the insulation barrier
Do independent branch flow passage.
15. according to claim 1-6 any one of them devices, which is characterized in that two phases in each electrode unit group
To electrode unit spacing be 0.2cm-5cm.
16. according to claim 1-6 any one of them devices, which is characterized in that the surface of the flexible diaphragm is insulation
Material.
17. according to claim 1-6 any one of them devices, which is characterized in that the thickness of the flexible diaphragm be 1 μm-
1mm。
18. according to claim 1-6 any one of them devices, which is characterized in that the flexible diaphragm is towards the electrode
The surface of unit is rectangle, and length-width ratio is more than or equal to 2:1, wherein gas flow direction is length direction.
19. according to claim 1-6 any one of them devices, which is characterized in that the flexible diaphragm and the electrode list
Polarization process is passed through on the surface of member contact, and/or, surface is provided with micro-structure, and the micro-structure is for increasing the flexible vibration
Effective contact area of film and the electrode unit.
20. according to claim 1-6 any one of them devices, which is characterized in that described in each film fixing piece and composition
The distance between two adjacent separators of gas flow are identical.
21. device according to claim 20, which is characterized in that the film fixing piece includes shaft and clamping plate, the folder
Plate, which is fixed in shaft and can surround shaft, to be rotated, and the flexible diaphragm is connected by the clamping plate and the film fixing piece
It connects.
22. according to claim 1-6 any one of them devices, which is characterized in that further include deflector, for adjust gas into
Enter the direction of the gas flow.
23. according to claim 1-6 any one of them devices, which is characterized in that further include shell, the shell has air inlet
Mouth, gas outlet and cavity, first external partition, the second external partition and intermediate bulkhead are located in the cavity.
24. device according to claim 22, which is characterized in that further include shell, the shell has air inlet, gas outlet
And cavity, first external partition, the second external partition, intermediate bulkhead and deflector are located in the cavity.
25. device as claimed in claim 23, which is characterized in that be equipped with strainer between the air inlet and deflector.
26. device according to claim 23, which is characterized in that the shell is made of insulating material.
27. device according to claim 23, which is characterized in that the shell is detachable structure.
28. a kind of motor-vehicle tail-gas purifying device, which is characterized in that net including any gas in claim 1 to 22
Makeup is set.
29. a kind of motor-vehicle tail-gas purifying device, which is characterized in that net including claim 23 to 27 any one of them gas
Makeup is set, wherein the air inlet is connected with the exhaust outlet of the motor vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778602.XA CN105756750B (en) | 2014-12-15 | 2014-12-15 | A kind of gas cleaning plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778602.XA CN105756750B (en) | 2014-12-15 | 2014-12-15 | A kind of gas cleaning plant |
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| Publication Number | Publication Date |
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| CN105756750A CN105756750A (en) | 2016-07-13 |
| CN105756750B true CN105756750B (en) | 2018-11-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760968A (en) * | 2018-03-27 | 2018-11-06 | 佛山市飞程信息技术有限公司 | A kind of automobile emission gas analyzer gas sensor |
| CN110671170A (en) * | 2018-07-02 | 2020-01-10 | 西安电子科技大学 | Device capable of reducing automobile exhaust gas particles and automobile |
| US20220250087A1 (en) * | 2018-10-22 | 2022-08-11 | Shanghai Bixiufu Enterprise Management Co., Ltd. | Engine exhaust dust removing system and method |
| CN111245081B (en) * | 2020-01-21 | 2023-06-20 | 电子科技大学 | Self-powered automobile exhaust sensor and method |
| CN113217139B (en) * | 2021-04-26 | 2022-08-12 | 奇瑞汽车股份有限公司 | Vehicle exhaust particulate matter processing apparatus and vehicle |
| CN113446089A (en) * | 2021-07-29 | 2021-09-28 | 暨南大学 | Automobile exhaust filtering device |
| CN113680183B (en) * | 2021-08-19 | 2022-08-26 | 四川大学 | Piezoelectricity-based self-powered odor treatment and detection integrated equipment |
| CN114277403B (en) * | 2021-12-22 | 2024-04-19 | 兰溪自立环保科技有限公司 | Electrolytic tank for chemical industry |
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| JP5356183B2 (en) * | 2009-11-04 | 2013-12-04 | 株式会社 Ａｃｒ | Plasma reactor and exhaust gas purification apparatus using the same |
| CN103944443B (en) * | 2013-01-21 | 2016-09-07 | 北京大学科技开发部 | A kind of cascade structure electromotor |
| CN103780128B (en) * | 2013-04-16 | 2016-04-06 | 北京纳米能源与系统研究所 | A kind of wind-force friction nanometer power generator |
| CN104124887B (en) * | 2013-04-24 | 2016-04-06 | 纳米新能源（唐山）有限责任公司 | Wind-driven generator |
| CN103490005B (en) * | 2013-08-27 | 2015-08-12 | 中北大学 | Based on the preparation method of the nano generator of piezoelectricity-friction effect |
| CN203874622U (en) * | 2014-04-15 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Air purification device and vehicle air purification system applying same |
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