CN106563572A - Flow guide system with particle coagulation function for wet type electrostatic precipitator - Google Patents

Abstract

The invention provides a flow guide system with a particle coagulation function for a wet type electrostatic precipitator. The flow guide system with the particle coagulation function for the wet type electrostatic precipitator comprises a flow guide device. The flow guide device comprises a shell, a first flow guide plate, a second flow guide plate and a third flow guide plate. The shell is provided with an inlet and an outlet. The section areas between the inlet and the outlet are sequentially increased, so that the shell is in a funnel shape. The first flow guide plate, the second flow guide plate and the third flow guide plate are sequentially arranged in the shell. The first flow guide plate is close to the inlet. The first flow guide plate is provided with multiple flow guide channels in the flowing direction of smoke. The section of each flow guide channel is gradually increased in the smoke direction. The second flow guide plate is provided with multiple strip-shaped plates which are arranged at intervals. The third flow guide plate is provided with multiple small holes. The three flow guide plates jointly form the flow guide system of the wet type electrostatic precipitator, and the flow guide system of the wet type electrostatic precipitator has the functions of medium flow equalization and particle coagulation, reduces the resistance flow of fluid and is stable in structure.

Description

A diversion system of wet electrostatic precipitator with particle condensation function

technical field

The invention relates to flue gas treatment technology, in particular to a wet electrostatic precipitator diversion system with particle condensation function, which belongs to the technical field of flue gas equipment manufacturing.

Background technique

Wet electrostatic precipitators are widely used in the deep purification of desulfurized wet flue gas in coal-fired, oil-fired and waste incineration power plants, especially suitable for capturing PM10, PM2.5 and other fine particles, acid mist, mercury, etc. in desulfurized wet flue gas.

In the prior art, due to the limitation of the site and process layout, at the corner of the flue of the wet electrostatic precipitator, due to the turbulence of the flue gas, the medium in the flue gas will be unevenly separated, and because there is no guide device, the resistance loss of the fluid is very large.

Contents of the invention

The invention provides a wet electrostatic precipitator diversion system with the functions of medium flow uniformity, particle coagulation, reduced fluid resistance loss, and stable structure.

The wet electrostatic precipitator deflector system with particle coagulation function according to the embodiment of the present invention includes: a deflector; the deflector includes; a shell, a first deflector, a second deflector and a third deflector flow plate;

The housing has an inlet and an outlet, and the cross section between the inlet and the outlet increases sequentially so that the housing is funnel-shaped;

The first deflector, the second deflector and the third deflector are sequentially arranged in the housing, and the first deflector is arranged close to the inlet;

The first guide plate is provided with a plurality of guide channels along the direction of flue gas flow, and the cross-section of each guide channel along the direction of smoke gradually increases; the second guide plate has a plurality of bar-shaped The plates are arranged at intervals; a plurality of small holes are opened on the third guide plate.

The above-mentioned guide system for wet electrostatic precipitator with the function of coalescing particles, wherein, the strip-shaped plate in the second guide plate has a П-shaped cross-section, and the П-shaped opening faces the outlet.

The above-mentioned guide system for wet electrostatic precipitators with particle coalescence function, wherein the diameter of the small holes on the third guide plate is 50mm, and the distance between two adjacent small holes is 36mm.

The wet electrostatic precipitator deflector system with particle coagulation function as described above, wherein, the thickness of the first deflector is 500mm, the thickness of the second deflector is 50mm, and the thickness of the third deflector is The thickness is 10mm.

The wet electrostatic precipitator deflector system with particle condensation function as described above, wherein, between the inlet and the first deflector, between the first deflector and the second deflector Support rods are provided between the plates and between the second deflector and the third deflector.

The above-mentioned wet electrostatic precipitator diversion system with particle coalescence function, wherein, a grid layer is also arranged at the outlet.

The above-mentioned wet electrostatic precipitator diversion system with particle coagulation function, wherein the wet electrostatic precipitator diversion system further includes: square steel beams;

The well-shaped square steel beam is arranged below the flow guiding device and is located at the outlet.

The three deflectors in the present invention together constitute a flow guide system for a wet electrostatic precipitator with medium flow equalization, particle coagulation, reduced fluid resistance loss, and stable structure.

Description of drawings

Fig. 1 is the structural diagram of the diversion system of the wet electrostatic precipitator with particle coagulation function according to the embodiment of the present invention;

Fig. 2 is a top view of the first deflector in the embodiment of the present invention;

Fig. 3 is a sectional view of the first deflector in the embodiment of the present invention;

Fig. 4 is a top view of the second deflector in the embodiment of the present invention;

Fig. 5 is A-A sectional view among Fig. 4;

Fig. 6 is a top view of the third deflector in the embodiment of the present invention.

detailed description

As shown in Figure 1, and with reference to Figure 2 and Figure 3; the wet electrostatic precipitator diversion system with particle coagulation function according to the embodiment of the present invention includes: a diversion device; the diversion device includes; shell 5, the first A deflector 1, a second deflector 2 and a third deflector 3.

The housing 5 has an inlet and an outlet, the solid arrow is the inlet, and the dotted arrow is the outlet; the cross-section between the inlet and the outlet increases sequentially so that the housing 5 is funnel-shaped.

The first deflector 1, the second deflector 2 and the third deflector 3 are sequentially arranged in the housing, and the first deflector 1 is arranged close to the inlet;

The first guide plate 1 is provided with a plurality of guide channels along the direction of flue gas flow, and the section of each guide channel along the direction of smoke gradually increases; as shown in Figure 4, the second guide plate 2. It consists of a plurality of strip plates arranged at intervals; the third guide plate 3 is provided with a plurality of small holes.

The first deflector plays the role of medium flow; the second deflector plays the role of particle coagulation; the third deflector also plays the role of further particle coagulation, and can reduce Fluid resistance loss.

The first deflector 1 is composed of a plurality of side plates, each side plate intersects each other and is inclined to ensure that the cross-section of each flue gas channel along the direction of flue gas flow continues to expand, so as to achieve medium flow role.

The three deflectors in the present invention together constitute a flow guide system for a wet electrostatic precipitator with medium flow equalization, particle coagulation, reduced fluid resistance loss, and stable structure.

As shown in Fig. 4 and Fig. 5, the wet electrostatic precipitator guide system with particle coagulation function of the present embodiment, wherein, the strip-shaped plate section in the second guide plate 2 is П-shaped, and the П-shaped The opening is facing the outlet. The second deflector includes a plurality of strip-shaped plates, each strip-shaped plate has a width of 180mm, the distance between two adjacent strip-shaped plates is 180mm, and the thickness is 50mm. The section of the strip plate is П-shaped or π-shaped.

As shown in FIG. 6 , further, the diameter of the small holes on the third deflector 3 is 50 mm, and the distance between two adjacent small holes is 36 mm.

Specifically, in this embodiment, the thickness of the first deflector is 500 mm, the thickness of the second deflector is 50 mm, and the thickness of the third deflector is 10 mm.

In the guide system of wet electrostatic precipitator with particle coagulation function in this embodiment, between the inlet and the first guide plate 1, between the first guide plate 1 and the second guide plate Support rods 11 are provided between the plates 2 and between the second deflector 2 and the third deflector 3 . The connection between the support rod 1 and the flow guiding device 5 is made of glass fiber reinforced plastic paste.

Further, in this embodiment, a grid layer 4 is also provided at the outlet. The diversion system of the wet electrostatic precipitator further includes: a square steel beam 6; the square steel beam 6 is arranged below the diversion device 5 and is located at the outlet.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (7)

1. a kind of wet cottrell flow guide system with microgranule coalescence function, it is characterised in that bag Include：Guiding device；The guiding device includes；Shell, the first deflector, the second deflector and the 3rd deflector；

The shell and have entrance and exit, the section between the entrance and the outlet increases successively so that described Shell is in infundibulate；

First deflector, second deflector and the 3rd deflector are set in turn in the inside the shell, And first deflector is arranged near the entrance；

Flow of flue gas direction is provided with multiple flow-guiding channels on first deflector, each described flow-guiding channel edge The section in flue gas direction gradually increases；Second deflector is intervally arranged by many stripe boards and is constituted；Described 3rd Multiple apertures are offered on deflector.

2. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, the stripe board section during second deflector has is in П shapes, the П shapes opening is just to described Outlet.

3. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, hole diameter on the 3rd deflector is 50mm, between two neighboring aperture away from From for 36mm.

4. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, the first water conservancy diversion plate thickness is 500mm, the thickness of second deflector is 50mm, described 3rd water conservancy diversion plate thickness is 10mm.

5. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, with described second between the entrance and first deflector, between first deflector Between deflector, between second deflector and the 3rd deflector, support bar is provided with.

6. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, the exit is additionally provided with grid layer.

7. the wet cottrell flow guide system with microgranule coalescence function according to claim 1, Characterized in that, the wet cottrell flow guide system also includes：Well word square steel beam；

The well word square steel beam is arranged at the lower section of the guiding device, and is located at the exit.