Positive plate and a kind of wet electrical dust precipitator
Technical field
This utility model is related 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, particularly national coal-burning boiler is to realize exhaust opening flue dust " minimum discharge " in recent years, how using wet electrical dust precipitator
Technology path.Wet electrical dust precipitator has board-like wet electrical dust precipitator and honeycomb electric duster at present.
Before wet electrical dust precipitator is for exhaust opening after wet desulphurization, for removing flue dust in flue gas, realize flue dust
Minimum discharge.But the dust collecting pole plate of board-like wet electrical dust precipitator is in " one " font arrangement form linear path at present, honeycomb fashion
The dust collecting pole plate of wet electrical dust precipitator surrounds " hole " formula passage, and the subject matter that both exists is all dust collecting pole plates and flue gas
Flowing to angle is 0 degree, and air-flow turbulence effect is relatively gentle, and flue dust is reunited, grown up and suppressed by certain, can only pass through electric field force
Realize 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 larger.
Utility model content
For the problems referred to above, in order to solve the deficiencies in the prior art, special offer is a kind of to carry bossed positive plate, this anode
Plate, by being set to vertical by the projected direction of projection with the direction of flow of flue gas or intersecting, is made with improving the turbulence to flow flue gas
With.
This utility model also provides a kind of wet electric cleaner, and this cleaner unit includes carrying bossed positive plate, by this sun
The setting of pole plate, improves the turbulence effect of flue gas, the collision effectively facilitating flue dust is grown up, and realizes cigarette using effect of inertia simultaneously
The trapping of dirt, is remarkably improved the efficiency of dust collection of equipment, saves energy consumption.
This utility model provide the first string be:
A kind of positive plate, anode plate surface is provided with projection at least, the projected direction of projection and the cigarette flowing through positive plate
Gas direction of flow is vertical or intersects set angle, is acted on the turbulence improving flue gas;Flue gas passes through on the positive plate of projection
Projection, effectively causes the turbulent flow of flue gas, is conducive to breaing up of flue gas, contributes to the dust removing effects to flue gas.
This utility model provide second scheme be:
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 of multiple intervals setpoint distance setting, and anode plate surface is provided with least one
Projection, the projected direction of projection is vertical with the flue gas direction of flow flowing through positive plate or intersects set angle, to improve flue gas
Turbulence effect, be disposed with cathod system between often two neighboring positive plate;Flue gas enters in housing, and the flue gas of flowing flows through
Positive plate, causes the turbulence of flue gas by projection, is conducive to flue gas to be uniformly dispersed in housing electric field region, promotes flue dust to reunite
With grow up;Wherein, when projection to be flowed with flue gas and to intersect, all of projection direction is consistent.
Natural, it is provided with rinse-system, and the electric power system powered to wet electrical dust precipitator in described housing, in housing
Bottom be provided with tapered collecting tank, for collecting flue dust.
In second embodiment of this utility model, in order to avoid existing product is made with larger improvement, described flue gas enters
Mouth and exhanst gas outlet may be contained within horizontal level, and the two is arranged on same horizontal line.
In the 3rd embodiment of this utility model, described smoke inlet and exhanst gas outlet may be contained within vertical position.
Further, in order to promote flue gas to be uniformly distributed in electric field region, the projection position of the plurality of positive plate
Alignment setting one by one, alignment setting one by one substantially in perpendicular, correspondingly, cathod system is equally that alignment sets one by one
Put.
When a positive plate upper process has many places, it is spaced the distance of setting between adjacent projection, positive plate is integrated
One piece of pole plate of molding, decreases consumptive material;Or, the plate that positive plate splices for polylith.
Described cathod system is between the projection of adjacent two positive plates and/or between non-protruding it is preferable that in everywhere
It is respectively provided with a cathod system at projection and non-protruding, cathod system can be corona wire, 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
It is vertical or intersects set angle to flow with the projection of positive plate, each contribute to improve the turbulating effect of flue gas.
The adjacent substantially S-type shape of two projections, so, whole positive plate is in continuous S type construction, 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, and distance 100 between two neighboring projection centrage~
130mm, trapezoidal height is 1~1.5 times of trapezoidal upper edge lengths;Such structure setting, after overtesting, causes to flue gas
Turbulating effect be optimum, dust collection effect is in optimized scope.
The beneficial effects of the utility model are:
1) projection is passed through to arrange on positive plate, the projected direction of projection is vertical with the flue gas direction of flow flowing through positive plate
Or intersect set angle, acted on the turbulence improving flue gas, the collision improving flue dust is grown up, utilize 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) projection is passed through to arrange on positive plate, multiple projections are alignd one by one, contribute to balancing flue gas, realize flue gas in shell
Bulk electric field is uniformly distributed in region.
3) pass through for projection to be shaped to S type shape, trapezoidal setting, can effectively ensure that growing up of flue gas, raising removes
Dirt effect.
Brief description
Fig. 1 is structural representation of the present utility model;
Fig. 2 is this utility model pole plate arrangement schematic diagram;
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.
Specific embodiment
With reference to Figure of description and specific embodiment, the utility model will be further described:
Embodiment 1
A kind of positive plate, anode plate surface is provided with projection at least, the projected direction of projection and the cigarette flowing through positive plate
Gas direction of flow is vertical or intersects set angle, is acted on the turbulence improving flue gas;Flue gas passes through on the positive plate of projection
Projection, effectively causes the turbulent flow of flue gas, is conducive to breaing up of flue gas, contributes to the dust removing effects to flue gas.
The shape of positive plate can be continuous 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
Setting air-distribution device 2, is provided with anode dust collecting system 8 in housing, and anode dust collecting system 8 includes the setpoint distance setting of multiple intervals
Positive plate, anode plate surface is provided with projection at least, when a positive plate upper process has many places, between adjacent projection
The distance that interval sets;The projected direction of projection is vertical with the flue gas direction of flow flowing through positive plate or intersects set angle,
To improve the turbulence effect of flue gas, between often two neighboring positive plate, it is disposed with cathod system 9;Flue gas enters in housing, stream
Dynamic flue gas flows through positive plate, causes the turbulence of flue gas by projection, is conducive to flue gas to be uniformly dispersed in housing electric field region,
Promote flue dust to reunite and grow up, the inertia force of soot dust granule can be made full use of, be favorably improved dust collection efficiency;Wherein, work as projection
To flow when intersecting with flue gas, all of projection direction is consistent.
Natural, it is provided with rinse-system 5, insulation system 3, and the power supply powered to wet electrical dust precipitator in described housing
System 4, is provided with tapered collecting tank 7 in the bottom of housing, for collecting flue dust.
In order to avoid existing product is made with larger 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 flue gas to be uniformly distributed in electric field region, align one by one and set in the projection position of the plurality of positive plate
Put, alignment setting one by one substantially in perpendicular, correspondingly, cathod system 9 is equally alignment setting one by one.
Described cathod system 9 is between the projection of adjacent two positive plates and/or between non-protruding it is preferable that each
It is 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
It is vertical or intersects set angle to flow with the projection of positive plate, each contribute to improve the turbulating effect of flue gas.
The adjacent substantially S-type shape of two projections, so, whole positive plate is in continuous S type construction;Or, projection
Triangular shape.
Described projection is trapezoidal, and trapezoidal top is straight line or arc, and distance 100 between two neighboring projection centrage~
130mm, trapezoidal height is 1~1.5 times of trapezoidal upper edge lengths;Such structure setting, after overtesting, causes to flue gas
Turbulating effect be optimum, dust collection effect is in optimized scope.
After flue gas enters wet electrical dust precipitator, flow through air-distribution device, enter electric field region, in electric field, dust collecting pole plate is installed and 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
Rinse, flue dust enters collecting tank with flushing liquor, realizes the removing of flue dust in flue gas.
S-shaped exhaust gases passes are mainly characterized by:Dust collecting pole plate assembled arrangement forms S-shaped exhaust gases passes, and flue dust is curved through S-shaped
When can achieve 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 preferred embodiment of the present utility model, be not whole embodiments of the present utility model,
Not in order to limit this utility model, all within spirit of the present utility model and principle, any modification of being made, equivalent,
Improve etc., should be included within protection domain of the present utility model.
In addition to technical characteristic described in description, remaining technical characteristic is technology known to those skilled in the art, in order to prominent
Go out innovative characteristicses of the present utility model, above-mentioned technical characteristic will not be described here.