Positive plate and a kind of wet electrical dust precipitator
Technical field
The present invention relates to smoke dust-removing equipment, specifically positive plate and a kind of wet electrical dust precipitator.
Background technology
Electric precipitation is that coal-burning power plant, metallurgy and cement industry reduce the both economical and maximally efficient of flue gas soot emissions
Method, whole nation coal-burning boiler was for realizing exhaust opening flue dust " minimum discharge " the most in recent years, many employing wet electrical dust precipitators
Technology path.Wet electrical dust precipitator has board-like wet electrical dust precipitator and honeycomb electric duster at present.
Wet electrical dust precipitator before exhaust opening, is used for removing flue dust in flue gas, it is achieved flue dust after wet desulphurization
Minimum discharge.But the dust collecting pole plate of current board-like wet electrical dust precipitator arranges formation linear path, honeycomb fashion in " one " font
The dust collecting pole plate of wet electrical dust precipitator surrounds " hole " formula passage, and both subject matter existed is all dust collecting pole plates and flue gas
Flowing to angle is 0 degree, and air-flow turbulence effect is relatively mild, and flue dust is reunited, grown up and suppressed by certain, can only pass through electric field force
Realizing the seizure of flue dust, the inertia force of granule is not utilized effectively, and honeycomb fashion wet electrical dust precipitator dust collector pole plate loss
Material is bigger.
Summary of the invention
For the problems referred to above, in order to solve the deficiencies in the prior art, special offer one carries bossed positive plate, this anode
Plate is by being set to vertical by the projected direction of projection with the flow path direction that comes of flue gas or intersect, to improve the turbulence work flowing flue gas
With.
The present invention also provides for a kind of wet electric cleaner, and this cleaner unit includes carrying bossed positive plate, by this positive plate
Setting, improve the turbulence effect of flue gas, the collision effectively facilitating flue dust is grown up, and utilizes effect of inertia to realize flue dust simultaneously
Trapping, is remarkably improved the efficiency of dust collection of equipment, saves energy consumption.
The first string that the present invention provides is:
A kind of positive plate, positive plate surface is provided with at least one place's projection, the projected direction of projection and the cigarette flowing through positive plate
Gas carrys out flow path direction and vertically or intersects set angle, to improve the turbulence effect of flue gas;Flue gas is by the positive plate of projection
Projection, effectively causes breaing up of the turbulent flow of flue gas, beneficially flue gas, contributes to the dust removing effects to flue gas.
Second scheme that the present invention provides is:
A kind of wet electrical dust precipitator, including housing, housing is provided with smoke inlet and exhanst gas outlet, is provided with anode in housing
Dust collecting system, anode dust collecting system includes the positive plate that multiple intervals setpoint distance is arranged, and positive plate surface is provided with at least one place
Projection, it is vertical or intersect set angle, to improve flue gas that the projected direction of projection carrys out flow path direction with the flue gas flowing through positive plate
Turbulence effect, between the most adjacent two positive plates, be disposed with cathod system;Flue gas enters in housing, and the flue gas of flowing flows through
Positive plate, causes the turbulence of flue gas, beneficially flue gas to be uniformly dispersed in housing electric field region by projection, promotes that flue dust is reunited
With grow up;Wherein, when projection flows with flue gas and to intersect, all of projection direction keeps consistent.
Natural, in described housing, it is provided with rinse-system, and the electric power system powered to wet electrical dust precipitator, at housing
Bottom be provided with tapered collecting tank, be used for collecting flue dust.
In second embodiment of the invention, in order to avoid existing product being made bigger improvement, described smoke inlet with
Exhanst gas outlet may be contained within horizontal level, and the two is arranged on same horizontal line.
In third embodiment of the invention, described smoke inlet and exhanst gas outlet may be contained within vertical position.
Further, in order to promote that flue gas is uniformly distributed in electric field region, the projection position of the plurality of positive plate
Aliging one by one setting, settings of substantially aliging one by one in perpendicular, correspondingly, cathod system is to align one by one to set equally
Put.
When a positive plate upper process has many places, being spaced the distance of setting between adjacent projection, positive plate is integrated
One piece of pole plate of molding, decreases consumptive material;Or, positive plate is the plate of polylith splicing.
Described cathod system is located between the projection of adjacent two positive plates and/or between non-protruding, it is preferable that in everywhere
Being respectively provided with a cathod system at projection and non-protruding, cathod system can be corona wire, and corona wire loads negative direct current high voltage.
When smoke inlet is arranged on horizontal level, described positive plate is vertically arranged, and such setting can meet flue gas
Flow the projection with positive plate to be vertical or intersect set angle, each contribute to improve the turbulating effect of flue gas.
Two adjacent the most S-type shapes of projection, so, whole positive plate is continuous print S type structure, and positive plate can be by
The plate of polylith bending is spliced into S type structure one by one;Or, projection triangular shape.
Described projection is trapezoidal, and trapezoidal top is straight line or arc, the spacing 100 of adjacent two projection centrages~
130mm, trapezoidal height is 1~1.5 times of trapezoidal upper edge lengths;Such structure arranges after overtesting, causes flue gas
Turbulating effect be optimum, dust collection effect is in optimized scope.
The invention has the beneficial effects as follows:
1) by arranging projection on positive plate, it is vertical that the projected direction of projection carrys out flow path direction with the flue gas flowing through positive plate
Or intersect set angle, to improve the turbulence effect of flue gas, the collision improving flue dust is grown up, and utilizes effect of inertia to realize simultaneously
The trapping of flue dust, is remarkably improved the efficiency of dust collection of equipment, saves energy consumption.
2) by arranging projection on positive plate, multiple projections are alignd one by one, contribute to balancing flue gas, it is achieved flue gas is at shell
Bulk electric field is uniformly distributed in region.
3) by projection is shaped to S type shape, trapezoidal setting, can effectively ensure that growing up of flue gas, raising removes
Dirt effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is that schematic diagram arranged by pole plate of the present invention;
1 smoke inlet, 2 air-distribution devices, 3 insulation systems, 4 electric power systems, 5 rinse-systems, 6 exhanst gas outlets, 7 collecting tanks, 8
Anode dust collecting system, 9 cathod systems.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described:
Embodiment 1
A kind of positive plate, positive plate surface is provided with at least one place's projection, the projected direction of projection and the cigarette flowing through positive plate
Gas carrys out flow path direction and vertically or intersects set angle, to improve the turbulence effect of flue gas;Flue gas is by the positive plate of projection
Projection, effectively causes breaing up of the turbulent flow of flue gas, beneficially flue gas, contributes to the dust removing effects to flue gas.
The shape of positive plate can be continuous print S type, and each projection can be trapezoidal shape.
Embodiment 2
A kind of wet electrical dust precipitator, including housing, housing is provided with smoke inlet 1 and exhanst gas outlet 6, at smoke inlet 1
Arranging air-distribution device 2, be provided with anode dust collecting system 8 in housing, anode dust collecting system 8 includes that multiple intervals setpoint distance is arranged
Positive plate, positive plate surface is provided with at least one place's projection, when a positive plate upper process has many places, between adjacent projection
The distance that interval sets;It is vertical or intersect set angle that the projected direction of projection carrys out flow path direction with the flue gas flowing through positive plate,
To improve the turbulence effect of flue gas, between the most adjacent two positive plates, it is disposed with cathod system 9;Flue gas enters in housing, stream
Dynamic flue gas flows through positive plate, is caused the turbulence of flue gas, beneficially flue gas to be uniformly dispersed in housing electric field region by projection,
Promote that flue dust is reunited and grows up, the inertia force of soot dust granule can be made full use of, be favorably improved dust collection efficiency;Wherein, projection is worked as
Flow when intersecting with flue gas, all of projection direction keeps consistent.
Natural, in described housing, it is provided with rinse-system 5, insulation system 3, and the power supply powered to wet electrical dust precipitator
System 4, is provided with tapered collecting tank 7, is used for collecting flue dust in the bottom of housing.
In order to avoid existing product is made bigger improvement, described smoke inlet 1 may be contained within level with exhanst gas outlet 6
Position, the two is arranged on same horizontal line.
In order to promote that flue gas is uniformly distributed in electric field region, align one by one and set in the projection position of the plurality of positive plate
Putting, setting of substantially aliging one by one in perpendicular, correspondingly, cathod system 9 is setting of aliging one by one equally.
Described cathod system 9 is located between the projection of adjacent two positive plates and/or between non-protruding, it is preferable that each
Being respectively provided with a cathod system 9 at place's projection and non-protruding, cathod system 9 can be corona wire, corona wire loads direct current and bears
High pressure.
When smoke inlet is arranged on horizontal level, described positive plate is vertically arranged, and such setting can meet flue gas
Flow the projection with positive plate to be vertical or intersect set angle, each contribute to improve the turbulating effect of flue gas.
Two adjacent the most S-type shapes of projection, so, whole positive plate is continuous print S type structure;Or, projection
Triangular shape.
Described projection is trapezoidal, and trapezoidal top is straight line or arc, the spacing 100 of adjacent two projection centrages~
130mm, trapezoidal height is 1~1.5 times of trapezoidal upper edge lengths;Such structure arranges after overtesting, causes flue gas
Turbulating effect be optimum, dust collection effect is in optimized scope.
After flue gas enters wet electrical dust precipitator, flowing through air-distribution device, enter electric field region, in electric field, dust collecting pole plate is installed and is formed
S-shaped passage, flue dust occurs charged, inertial collision to be trapped by cathod system and anode system in S-shaped channel electric fields, opens simultaneously
Rinsing, flue dust enters collecting tank with flushing liquor, it is achieved the removing of flue dust in flue gas.
S-shaped exhaust gases passes is mainly characterized by comprising: that dust collecting pole plate assembled arrangement forms S-shaped exhaust gases passes, and flue dust is curved through S-shaped
Time can realize inertia catch, reunite and grow up, improve flue dust arresting efficiency.
Embodiment 3
The present embodiment with the difference of embodiment 2 is:
Described smoke inlet and exhanst gas outlet may be contained within vertical position.
The foregoing is only presently preferred embodiments of the present invention, be not whole embodiments of the present invention, not in order to limit
The present invention processed, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection scope of the present invention.
In addition to technical characteristic described in description, remaining technical characteristic is all known to a person skilled in the art technology, in order to prominent
Going out the innovative characteristics of the present invention, above-mentioned technical characteristic does not repeats them here.