CN201702022U

CN201702022U - Electric rotary type electrostatic precipitator

Info

Publication number: CN201702022U
Application number: CN2009203188479U
Authority: CN
Inventors: 周莉; 温庭德
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2011-01-12
Anticipated expiration: 2019-12-29

Abstract

The utility model discloses an electric rotary type electrostatic precipitator which includes a shell (1) as well as polar plates (2) and a corona wire (3) arranged inside the shell (1); the two ends of the shell (1) are respectively a smoke inlet (4) and a smoke outlet (5); the polar plates (2) are S-shaped intercommunicating polar plates; a wind direction rotary plate (7) is arranged in an induction trunk (6); and the two ends of a trunk capturing area (8) neighboring the induction trunk (6) are closed. The electric rotary type electrostatic precipitator changes the passing way of the smoke in an electric field; the dust captured by the anode of the electric rotary type electrostatic precipitator is more; the dust capturing rate is very high; and the dust collection effect is very ideal; moreover, removing the dust by vibrating is very easy; the dust removing effect is good; none secondary dust raising is caused, and none pollution is caused on the environment.

Description

The rotating electrostatic precipitator of electricity

Technical field

The utility model relates to a kind of electric cleaner, the rotating electrostatic precipitator of particularly a kind of electricity.

Background technology

The pole plate of existing electric cleaner mostly is the protected type pole plate greatly, flue gas is parallel advancing in the passage of electric field all the time, the Coulomb force of its charged grit and electric field wind-force are mutually 90 degree, its Coulomb force is decomposed by wind-force and is weakened greatly when grit drives to dust collector pole, when wind-force during greater than the Coulomb force, grit just is drawn out outside the electric field and can not be captured by positive plate, and the dust catching rate is lower, and dust collection effect is undesirable.And pasting plate is big plane absorption dust, and big to the adhesion of fine solid particle, dust layer is difficult for broken, easy-to-clean ash not, and vibration dust-cleaning is difficulty relatively, and reentrainment of dust is arranged during deashing.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of dust catching rate height, dust collection effect is good and deashing is easy, does not have the electric rotating electrostatic precipitator of reentrainment of dust during deashing, thereby overcomes the prior art deficiency.

For solving the problems of the technologies described above the technical solution of the utility model: electric rotating electrostatic precipitator.Its formation comprises housing and is installed in housing interior pole plate and corona wire, the housing two ends are respectively gas approach and exhanst gas outlet, described pole plate is a S type intercommunication pole plate, and the wind direction swivel plate is housed in inlet channel, the closed at both ends of the capture district passage adjacent with inlet channel.

In the above-mentioned electric rotating electrostatic precipitator, described wind direction swivel plate preferably is installed in the centre position of inlet channel.

In the rotating electrostatic precipitator of aforesaid electricity, the off-line ash-clearing valve is installed at the port of export of inlet channel.

In the rotating electrostatic precipitator of aforesaid electricity, utmost point row head plate is housed at passage two ends, capture district.

The beneficial effects of the utility model: compared with prior art, the utility model has changed the flow through mode of flue gas in electric field, flue gas is entered from inlet channel, and replace the entrance point of adjacent capture district passage and port of export sealing.After flue gas enters inlet channel under the barrier effect of wind direction swivel plate, flow to the dust collecting pole plate of both sides, because what dust collecting pole plate adopted is S type intercommunication pole plate, flue gas can pass dust collecting pole plate, and be unexpected diffusion type and enter adjacent capture district passage, under the barrier effect of utmost point row head plate, pass S type intercommunication pole plate again and flow into the rear end (outlet passageway) of inlet channel and flow out the electric field end then.Because the charged grit of flue gas must repeatedly pass through S type intercommunication pole plate, Coulomb force and wind-force are superimposed become with joint efforts, and make grit zero distance press close to positive plate, the Coulomb force is become greatly, so the dust that its positive plate captured is more, the dust catching rate is very high, and dust collection effect is very desirable.The reentrainment of dust that produces because of rapping is the common fault of electric cleaner, also is the one of the main reasons that electric cleaner can not be up to standard, is perplexing the difficult problem of checking on up to standard of electric precipitation for a long time.Had only increases the electric field number and reduces reentrainment of dust in the past, but does not finally also deal with problems, even because arranged five electric fields, to the terminal electric field problem that still exists secondary to fly.The utility model has overcome this a great problem effectively, because in electric field passage of the present utility model, reach the flue gas flow rate in the anode plate holder lane, be reduced to about 0-0.2m/s, it is also lower than the flow velocity of dust natural subsidence, so almost be " off-line ash-clearing " during rapping.Moreover, the utility model is equipped with the off-line ash-clearing valve at the port of export of every place inlet channel rear end (outlet passageway), realize off-line ash-clearing, therefore the utility model can effectively overcome reentrainment of dust, accomplishing does not have reentrainment of dust, environmentally safe, this is an important technology feature of the present utility model, thereby has increased substantially the electric precipitation control row ability of checking on up to standard.Compare with traditional flat electric cleaner, the utility model also has following characteristics: (one), pole plate intensity, rigidity are much higher than flat, be forward (perpendicular to airflow direction) should tangentially (be parallel to airflow direction) all than flat board will, can high temperature resistance, the heat resistanceheat resistant creep.(2), very easily be out of shape in the in-plane conventional frame of passage, especially at high temperature become flexible body, the long term thermal creep makes the sagging generation flexibility of framework, under the attraction of both positive and negative polarity, anode and cathode can be inhaled near mutually, and heteropole is apart from diminishing, adjacent to each other, the voltage of electric field rapid drawdown, but when personnel enter to check, can't find, because of shrinkage has been gone back.And anode and cathode structure of the present utility model is suspension status entirely, and temperature is high more hangs straight more straight and evenly more, can keep long-acting stable.(3), two negative electrode big frames before and after traditional electric field, the moment direction of suspension is to press to the negative electrode small frame relatively, forces small frame flexural deformation, artificially allows anode and cathode row adjacent to each other when high temperature especially, dwindles the heteropole distance, influences voltage of electric field.And the moment of two big frames of negative electrode of the present utility model is opposite mutually, small frame in the middle of making or horizontal dawn nature draw more smooth and more smooth. and small frame is to adopt cross beam type to hang corona wire, every polar curve more can be conducted oneself with dignity when heat is moved draw vertically, all the time do not influence die opening, guarantee the lasting stability operation.(4), the classic flat-plate formula is big plane absorption dust, big to the adhesion of fine solid particle, dust layer is difficult for broken, easy-to-clean ash, vibration dust-cleaning difficulty relatively in knot ash back on the positive plate.And pole plate of the present utility model is barrier between different departments, and the vibration dust-cleaning ratio is easier to, and ash-removal effect is good.(5), from overall vibration dust-cleaning effect, dull and stereotyped anode row quality is relatively large, vibration acceleration is difficult for transmitting and puts in place, decay is serious, and the forward of no matter arranging from the utmost point still is that tangential rigidity is excessive, is difficult for producing surperficial amplitude, vibration frequency is also suppressed, so dull and stereotyped utmost point row rapping poor effect.And utmost point row structure of the present utility model just in time meets the vibration acceleration three elements: one, and unit mass is little, and the transitivity of rapping power is good and power is big.Its two, utmost point row divides block in flakes, the spoke that shakes is fine, and the monomer frequency but acquires benefit, add overdraught around utmost point row, be in static critical, all better than any conventional electric cleaner ash-removal effect.And the outlet concentration of emission can be less than 30mg/m ³

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of S type intercommunication pole plate;

Arrow is represented the wind direction circulating direction among the figure.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

The specific embodiment

Embodiment 1.As shown in Figure 1, its formation comprises housing 1 and the pole plate 2 and the corona wire 3 that are installed in the housing 1, and housing 1 two ends are respectively gas approach 4 and exhanst gas outlet 5, and pole plate 2 is a S type intercommunication pole plate, and its structure as shown in Figure 2.Wind direction swivel plate 7 is housed in inlet channel 6, and wind direction swivel plate 7 preferably is installed in the centre position of inlet channel 6.Wind direction swivel plate 7 makes sealing in the middle of the inlet channel 6 front end of inlet channel 6 and rear end isolate, thereby flue gas flow direction is changed, and flows to the passage adjacent with inlet channel 6 both sides and captures district 8, flows out from the rear end (being exit passageway) of inlet channel 6 again.The closed at both ends of the capture district passage 8 adjacent with inlet channel 6 is equipped with utmost point row head plate 10 at the entrance point that captures district's passage 8 and the port of export, and the entrance point and the port of export that utmost point row head plate 10 will capture district's passage 8 seal.Be to realize off-line ash-clearing, at the port of export of inlet channel 6 off-line ash-clearing valve 9 is installed, thereby avoids reentrainment of dust, reduce pollution environment.

Embodiment of the present utility model is not limited to the foregoing description, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.

Claims

1. rotating electrostatic precipitator of electricity, comprise housing (1) and be installed in housing (1) interior pole plate (2) and corona wire (3), housing (1) two ends are respectively gas approach (4) and exhanst gas outlet (5), it is characterized in that: described pole plate (2) is a S type intercommunication pole plate, wind direction swivel plate (7) is housed in inlet channel (6), and the passage adjacent with inlet channel (6) captures the closed at both ends in district (8).

2. the rotating electrostatic precipitator of electricity according to claim 1 is characterized in that: described wind direction swivel plate (7) is installed in the centre position of inlet channel (6).

3. the rotating electrostatic precipitator of electricity according to claim 1 is characterized in that: the port of export at described inlet channel (6) is equipped with off-line ash-clearing valve (9).

4. the rotating electrostatic precipitator of electricity according to claim 1 is characterized in that: utmost point row head plate (10) is equipped with at the two ends that capture district (8) at described passage.