Background technology
Along with the development of modern industry, the demand that air ambient purifies is more and more urgent.Cleaner unit is modern
Purifying work and the important tool of living environment, wherein, the cathode assembly of cleaner unit coordinates with anode assembly,
Serve the main effect of gathering dust, and corona wire be one of extremely important parts in Electric Field in ESP,
By characteristics such as the C-V characteristic that corona wire is good, higher mechanical strengths, cleaner unit dedusting is promoted to work
Convenient and simple, and cost is low, reduces the production cost of cleaner unit.Therefore, the workability of corona wire
The stability of energy directly affects the efficiency of dust collection of cleaner unit, and the development to cleaner unit has important effect.
At present, in cleaner unit, wide variety of corona wire is connected with cathode frame by welding manner,
, there is following technical problem in this kind of connected mode, the especially use in wet electrical dust precipitator:
The first, the SO contained in wet flue gas environment3, the perishable weld seam of corrosive elements such as sulphuric acid acid solution,
Cause corona wire Joint failure;
The second, the limitation of solder technology easily expands welding heat affected zone, coarse grains in heat affected area,
Reduce the intensity of corona wire, easily cause corona wire to break, be substantially reduced the efficiency of dust collection of cleaner unit.
In view of this, need badly and the end construction of the substrate of corona wire in cleaner unit is improved, effectively carry
The reliability that high corona wire is connected with cathode frame, thus it is greatly improved the efficiency of dust collection of cleaner unit.
Summary of the invention
For the defect of above-mentioned existence, the technical problem to be solved in the present invention is to provide a kind of corona wire,
By to the end construction of the substrate of corona wire in cleaner unit and the improvement of corona wire, can realize corona wire with
Directly fixing of cathode frame, is greatly improved the reliability that corona wire connects, and eliminates the broken string that welding brings
With corrosion impact, thus realize cleaner unit high efficiency dedusting work.
The corona wire that the present invention provides, including substrate, the prickle that is arranged on described substrate, described substrate
The both sides, plate face of end curl into the connecting portion of cylindrical shape, and the cylinder wall of described connecting portion can pressurized
Deform and extend along vertical described corona wire axis direction.
Preferably, described connecting portion is set to open cylinder, and described open cylinder has along described electricity
The opening of hachure axis direction.
Preferably, the equal foldable of the two side walls of described opening is placed in the wall that described opening is relative.
Preferably, described cylinder is set to cylinder.
The present invention also provides for a kind of cathode assembly, including corona wire and the moon fixing with the connecting portion of corona wire
Pole framework, it is characterised in that described corona wire is above-described corona wire, described cathode frame is arranged
Through hole, described connecting portion is plugged in described through hole;It is placed in the described connecting portion edge outside described cathode frame
The axial direction pressurized of vertical described corona wire extends and forms the first locking member.
Preferably, the described connecting portion being placed in described cathode frame internal layer is subject to along described corona wire axis direction
Calendering spread becomes the second locking member.
Preferably, described locking member is fitted with the described cathode frame of the port of described through hole.
The present invention also provides for a kind of cleaner unit, including cathode assembly, it is characterised in that described cathode assembly
For above-described cathode assembly.
The corona wire that the present invention provides, is connected with cathode frame and is applied to cleaner unit.This corona wire includes base
Plate, prickle, wherein, the plane both sides of this base ends curl into the connecting portion of cylindrical shape, connect
The cylinder wall in portion can compressive deformation along vertical corona wire axis direction extend.By above-mentioned design, should
The connecting portion of corona wire can use the mode of compressive deformation, is directly connected with cathode frame;With prior art
Compare, eliminate employing welding manner and fix the connection heat affected area performance impact to corona wire, it can be ensured that
The intensity of corona wire, improves the reliability that corona wire is connected with cathode frame, and then is effectively improved cleaner unit
Efficiency of dust collection.
In the preferred version of the present invention, connecting portion is set to open cylinder, and this open cylinder has
Opening along described corona wire axis direction.By above-mentioned setting, the cylinder wall pressurized at connecting portion becomes
It is easy to force during shape, effectively ensures the feasibility of barrel wall facial disfigurement, improve connecting portion good when pressurized
Good ductility, thus provide Reliable guarantee for corona wire with being effectively connected of cathode frame.
In another preferred version of the present invention, this cylinder is set to cylinder, is arranged such, it is simple to curling
Molding, manufacturability is preferable.Meanwhile, the fixed position with cathode frame can be more beneficial for realize coordinating;Separately
Outward, when its compressive deformation, cylinder can improve the extension along vertical corona wire axis direction of the cylinder wall
Property, can be that corona wire provides reliable guarantee with being firmly connected of cathode frame, so that it is guaranteed that cleaner unit has
Effect service behaviour, improves its efficiency of dust collection.
The cathode assembly that the present invention provides, including corona wire and the negative electrode frame fixing with the connecting portion of corona wire
Frame, cathode frame arranges through hole, and the connecting portion of this corona wire is plugged in through hole, so, the company of corona wire
The through hole on cathode frame is run through in the portion of connecing, and, stretch out cathode frame.So, cathode frame outer layer it is placed in
Connecting portion can compressive deformation, through forming the first locking member along the extension of vertical corona wire axis direction.
Being arranged such, the first locking member can make that corona wire and cathode frame are fixing to be connected, can one-shot forming, installation
Simplicity, is substantially reduced the workload being welded and fixed connection, simultaneously effective eliminates welding linear to corona
The impact of energy.
Detailed description of the invention
Corona wire based on existing structure, the core of the present invention is to improve design for its end construction,
A kind of reliability being connected with cathode frame that is remarkably improved is provided, and is effectively improved the dedusting effect of cleaner unit
The corona wire of rate.Another core of the present invention is to provide a kind of negative electrode with this corona wire and arranges and dedusting
Device.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with Figure of description
Illustrate present embodiment.
Referring to Fig. 1 to Fig. 6, wherein, Fig. 1 is the structural representation of described corona wire;Fig. 2 is figure
The A of 1 to the structural representation of described connecting portion;Fig. 3 is that described corona wire connects with described cathode frame
Partial structurtes schematic diagram after connecing;Fig. 4 be Fig. 3 B to the structural representation of described locking member;Figure
5 is the structural representation of described cathode assembly;Fig. 6 be Fig. 5 C to structural representation.
Without loss of generality, the corona wire 1 that the present invention provides, including substrate 11, it is arranged at this substrate 11
On prickle 10, wherein, the arrangement form of this prickle 10 can use mode of the prior art, here,
It is not repeated.
In this programme, the both sides, substrate 11 end panel face of corona wire 1 curl into the connecting portion of cylindrical shape
12, meanwhile, the cylinder wall of this connecting portion 12 can prolong along the axis direction of vertical corona wire 1 by compressive deformation
Exhibition.It is to say, on the basis of existing technology, corona wire 1 end of writing board shape is put down with axis
Row two sides, bending simultaneously and to draw close together formed cylindrical shape connecting portion 12, specifically refer to
Shown in Fig. 1.
Above-mentioned cylindrical shape has certain plasticity, it is possible to deform after being squeezed, along vertical electricity
Hachure 1 axis direction extends, and so, can form the position that can fix corona wire 1, by this deformation
The portion formed is for achieving a fixed connection.Therefore, by above-mentioned design, can be corona wire 1 and cathode frame
2 are directly connected to provide guarantee reliably, it is achieved corona wire 1 is connected, effectively with cathode frame 2 no-welding-spot
Ground eliminates the Seam and heat effected zone produced due to welding, is greatly improved the intensity of corona wire 1, reduces
The corona wire 1 line-outage contingency under wet flue gas environment occurs, thus is effectively improved the dedusting effect of cleaner unit
Rate.
Further, in this programme, connecting portion 12 is set to open tube structure, and this open cylinder has
There is the opening 120 along corona wire 1 axis direction;In other words, at substrate 11 end plane of corona wire 1
During the curling of both sides, remain with space between dual-side, so, the connection of the cylindrical shape of non-closed can be formed
Portion 12, specifically refer to shown in Fig. 2.This opening 120 is advantageously implemented connecting portion 12 in pressurized process
In deformation, significantly reduce the closed tube structure resistance when compressive deformation, it is simple to install behaviour
Make personnel's force.Therefore, it is remarkably improved the ductility of connecting portion 12, for realizing corona wire 1 and negative electrode
The significantly more efficient connection of framework 2 provides guarantee.
It should be noted that opening 120 size of above-mentioned setting is not limited to this programme, its size is being protected
While card connecting portion 12 forms the basic configuration of cylinder, it is ensured that this connecting portion 12 can realize smoothly along hanging down
The extension in straight axis direction.
Further, as shown in Figure 4, the equal foldable of the two side walls of this opening 120 is placed in opening 120
Relative wall, is arranged such, it is possible to the effective extension position increasing connecting portion 12 formation, thus can
Being greatly improved connecting portion 12 when actual installation, relatively reliable with cathode frame 2 is fixing.Certainly, should
The two side walls of opening 120 also can be arranged by non-laminated form between wall corresponding thereto, it is possible to meets and connects
Portion 12 is fixed with cathode frame 2, and based on reliable fixing connection, this programme is preferred mode.
On this basis, as shown in figures 1 and 3, the cylinder in this programme is set to cylinder, certainly,
This cylinder is not limited to the cylindrical shape of diagram, can be also square cylinder, conical shell, triangle cylinder
Deng.In this programme, the cylinder of pref. cylindrical shape, the most easy to process, it is simple to cans,
Manufacturability is preferable, it is possible to decrease workload during shaping;On the other hand, the cylinder of cylindrical shape has more excellent
The directivity of extension, improve the feasibility of compressive deformation in installation process, and then, for improving corona wire
1 is reliably connected with cathode frame 2 and to provide safeguard.
In addition to aforementioned corona wire 1, the present invention also provides for a kind of cathode assembly, the most in the lump referring to Fig. 3, Fig. 5
Shown in Fig. 6, this cathode assembly includes corona wire 1 and the fixing negative electrode of connecting portion 12 with corona wire 1
Framework 2.Wherein, the cathode assembly shown in Fig. 5 is to be formed negative electrode frame by the cross bar being vertically connected and vertical pole
Frame 2, but the cathode frame 2 of this cathode assembly also can use other types of attachment, and not by shown in figure
The restriction of attachment.
Corona wire 1 in this cathode assembly uses above-described corona wire 1, meanwhile, this cathode frame 2
Arranging through hole (not shown) with corona wire 1 junction, the connecting portion 12 of corona wire 1 is plugged in
Through hole.So, after connecting portion 12 runs through this through hole, its end is placed in the outer layer of cathode frame 2, simultaneously
Framework internal layer arranges one section of connecting portion 12;It is to say, after this connecting portion 12 passes above-mentioned through hole,
Two ports at through hole arrange connecting portion 12, i.e. the outer layer of cathode frame 2 and internal layer are respectively provided with one section
Connecting portion 12.So, the axis along vertical corona wire 1 of the connecting portion 12 outside cathode frame 2 it is placed in
Direction is squeezed, and extends and forms the first locking member 121.This first locking member 121 makes corona wire 1
Connecting portion 12 is locked in the orifice end of above-mentioned through hole, it is ensured that corona wire 1 is connected with the fixing of cathode frame 2.
During actual installation, making corona wire 1 keep tensioning state, operator only need to be by extruding
It is placed in the connecting portion 12 of cathode frame 2 outer layer, through once deforming molding, thus corona wire can be completed
Fixing between 1 and cathode frame 2.So, the installation workload of operator can be significantly reduced, and have
The problem eliminating to effect the broken string perishable, easy that the junction point of welding causes, and then be that cleaner unit is effective
Work provide and ensure reliably, be greatly improved efficiency of dust collection.
Further, the connecting portion 12 being placed in cathode frame 2 internal layer is rolled along corona wire 1 axis direction
Spread becomes the second locking member 122.It is to say, fix corona wire 1 and negative electrode at the first locking member 121
On the basis of framework 2, the connecting portion 12 in another orifice end of through hole is squeezed, and formation can make corona
Line 1 and the second fixing locking member 122 of cathode frame 2.So, corona wire 1 can more efficiently be improved
The reliability connected, thus ensure the efficiency of dust collection of cleaner unit.
It is pointed out that when forming locking member by above-mentioned compressive deformation and fix corona wire 1, need
Guarantee that corona wire 1 working position is in tensioning state, therefore, carrying out extruding the connecting portion of corona wire 1
During 12, no matter it is initially formed the first locking member 121 or the second locking member 122, only need to guarantee electricity
Hachure 1 working position tensioning, is in effective duty meeting corona wire 1.
Further, the cathode frame 2 of corona wire 1 locking member with the port of through hole is fitted.?
During actual installation, extruding formed locking member time, it should make locking member against the port of above-mentioned through hole,
It is to say, make the first locking member 121 and the second locking member 122 near the through hole aperture of cathode frame 2
Side, fit tightly with the cathode frame 2 of the end in this through hole aperture.So, can effectively disappear
Except corona wire 1 is along the play of axis direction, improve between corona wire 1 and cathode frame 2 solid and reliable
Connect, thus ensure the effective service behaviour of cleaner unit, effectively complete dedusting work.
It addition, based on the above, the present invention also provides for a kind of cleaner unit with above-mentioned cathode assembly,
Other structures of this cleaner unit and function refer to prior art.Further, this cleaner unit has any of the above-described
Cathode assembly described in embodiment, therefore it can arrive above-mentioned identical technique effect, here, the most no longer
Repeat.
The cathode assembly and the cleaner unit that to corona wire provided by the present invention and have this corona wire above are carried out
It is discussed in detail.Object lesson only for the present invention is set forth herein, above specific embodiment party
The explanation of formula is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for this
For the those of ordinary skill of technical field, on the premise of without departing from feature of the present invention, it is also possible to make
Some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.