CN220371279U - Desulfurizing, dehumidifying and chimney removing integrated tower - Google Patents

Abstract

The utility model provides a desulfurization, dehumidification and chimney integrated tower, which comprises a desulfurization tower body, wherein a chimney is arranged at the top of the desulfurization tower body, and a spraying system and a tray are respectively arranged in the desulfurization tower body from top to bottom; the tray comprises an annular supporting piece and a tray body, wherein the annular supporting piece is fixedly connected with the inner side wall of the desulfurizing tower body, and the annular supporting piece is provided with a circle of clamping grooves with upward openings; the tray body is circular, a circle of downwards extending clamping plates are arranged on the outer side edge of the tray body, and the clamping plates are clamped and combined with the clamping grooves; a plurality of positioning pieces are arranged between the clamping plate and the clamping groove. The desulfurization, dehumidification and chimney integrated tower provided by the utility model can solve the problems of inconvenient tray replacement operation and low replacement efficiency of the existing desulfurization tower.

Description

Desulfurizing, dehumidifying and chimney removing integrated tower

Technical Field

The utility model relates to the technical field of desulfurizing towers, in particular to a desulfurizing, dehumidifying and chimney integrated tower.

Background

The thermal power plant can generate more flue gas in the operation process, and the flue gas contains sulfur and other pollutants, so that the flue gas has strict emission standard for flue gas emission of the thermal power plant. Along with environmental awareness strengthens gradually, and thermal power plant's emission requirement is also higher and higher, and the desulfurizing tower is one of the flue gas treatment facility of thermal power plant, along with the technological innovation needs continuous to reform transform the desulfurizing tower, makes the flue gas through the desulfurizing tower can be by more efficient innocent treatment.

The tray is an important structure in the desulfurizing tower, the tray is provided with the air holes, the flue gas moves from bottom to top in the desulfurizing tower, and after passing through the air holes in the tray, the flue gas in the desulfurizing tower can be distributed more uniformly, and the reaction degree is more uniform and the desulfurizing efficiency is easier to improve when the desulfurizing reaction is carried out.

The existing desulfurizing tower, the tray is generally installed in the below of spraying system, can produce acid solution after the gaseous reaction such as sulfur dioxide in spray agent and the flue gas, and metallic tray contacts with flue gas and acid solution for a long time, receives the corruption easily, consequently, often need change the tray after desulfurizing tower operation a period of time. However, most of the existing trays are fixed in the desulfurizing tower through welding, and the existing trays need to be cut and re-welded during replacement, so that the replacement operation is inconvenient and the efficiency is low.

Disclosure of Invention

The utility model aims to provide a desulfurization, dehumidification and chimney integrated tower, which can solve the problems of inconvenient tray replacement operation and low replacement efficiency of the existing desulfurization tower.

The utility model provides a desulfurization, dehumidification and chimney integrated tower, which comprises a desulfurization tower body, wherein a chimney is arranged at the top of the desulfurization tower body, and a spraying system and a tray are respectively arranged in the desulfurization tower body from top to bottom; the tray comprises an annular supporting piece and a tray body, wherein the annular supporting piece is fixedly connected with the inner side wall of the desulfurizing tower body, and the annular supporting piece is provided with a circle of clamping grooves with upward openings; the tray body is circular, a circle of downwards extending clamping plates are arranged on the outer side edge of the tray body, and the clamping plates are clamped and combined with the clamping grooves; a plurality of positioning pieces are arranged between the clamping plate and the clamping groove.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the annular supporting piece comprises the annular horizontal plate and the annular inclined plate, the outer ring of the horizontal plate is welded and fixed with the inner side wall of the desulfurizing tower body, and the lower end of the inclined plate is fixedly connected with the inner ring of the horizontal plate, so that the clamping groove is formed by surrounding the inner side wall of the desulfurizing tower, the horizontal plate and the inclined plate.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the included angle between the horizontal plate and the inclined plate is an obtuse angle.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the positioning piece is the positioning pin, the inclined plate is provided with a plurality of first positioning holes corresponding to the positioning pins one by one, the clamping plate is provided with a plurality of second positioning holes corresponding to the first positioning holes one by one, and the positioning pins respectively pass through the corresponding first positioning holes and second positioning holes.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, a demister is arranged in the desulfurizing tower body, and the demister is positioned above the spraying system.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the wet electric dust collector is arranged in the desulfurizing tower body, and the wet electric dust collector is positioned above the demister.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the slurry pool is arranged at the bottom of the desulfurizing tower body, and the tray is positioned above the slurry pool.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the desulfurizing tower body comprises an upper reducing section, a dust removing section, a lower reducing section and a spray demisting section which are sequentially connected from top to bottom, wherein the upper reducing section is a conical cavity section with a small upper part and a large lower part, the dust removing section is a straight cylindrical cavity section, the lower reducing section is a conical cavity section with a large upper part and a small lower part, and the spray demisting section is a straight cylindrical cavity section, wherein the diameter of the dust removing section is larger than that of the spray demisting section;

the chimney is installed in the upper end of last reducing section, wet-type electrostatic precipitator install in the dust removal section, the defroster spray system, the tray with the thick liquid pond install respectively in spray the defogging section.

According to the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model, the top of the chimney is provided with the flue gas outlet, the side wall of the spray demisting section is provided with the flue gas inlet, the flue gas inlet is positioned below the tray, and the flue gas inlet is positioned above the slurry pool.

The utility model provides a desulfurization, wet and chimney removal integrated tower, which comprises a desulfurization tower body, wherein a chimney is arranged at the top of the desulfurization tower body, and a spraying system and a tray are respectively arranged in the desulfurization tower body from top to bottom; the tray comprises an annular supporting piece and a tray body, wherein the annular supporting piece is fixedly connected with the inner side wall of the desulfurizing tower body, and is provided with a circle of clamping grooves with upward openings; the tray body is circular, a circle of clamping plates extending downwards are arranged on the outer side edge of the tray body, and the clamping plates are clamped and assembled with the clamping grooves; a plurality of positioning pieces are arranged between the clamping plate and the clamping groove. When the tray body is damaged, the damaged tray body can be detached from the annular supporting piece, and then a new tray body can be reinstalled on the annular supporting piece. Therefore, the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model is convenient for replacing the tray body by the detachable installation mode of the tray body and the annular supporting piece, and has the advantages of no need of cutting and welding during replacement and higher replacement efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the integrated desulfurizing wet-removing chimney tower of the present utility model;

FIG. 2 is a schematic view of the structure of a tray in the integrated desulfurizing, dehumidifying and chimney tower of the present utility model;

FIG. 3 is a schematic view of the assembly of the annular support and tray body in the integrated desulfurization wet scrubbing stack tower of the present utility model;

FIG. 4 is a schematic structural view of an annular support in the integrated desulfurization wet scrubbing stack tower of the present utility model;

FIG. 5 is a schematic view showing the structure of a tray body in the integrated desulfurizing, dehumidifying and chimney tower of the present utility model;

FIG. 6 is a schematic diagram of the structure of the spray system in the integrated desulfurizing, dehumidifying and chimney tower of the present utility model.

Reference numerals illustrate:

1. a desulfurizing tower body; 101. an upper reducing section; 102. a dust removal section; 103. a lower reducing section; 104. spraying and demisting sections; 2. a chimney; 3. a spraying system; 301. a slurry spraying main pipe; 302. slurry spraying branch pipes; 303. a nozzle; 4. a tray; 41. an annular support; 411. a clamping groove; 412. a horizontal plate; 413. an inclined plate; 414. a first positioning hole; 42. a tray body; 421. a clamping plate; 422. a second positioning hole; 43. a positioning piece; 5. a demister; 6. wet electric dust collector; 7. a slurry pool; 8. a flue gas outlet; 9. and a flue gas inlet.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 6, the integrated tower for desulfurizing, dehumidifying and chimney according to the embodiment of the utility model comprises a desulfurizing tower body 1, wherein a chimney 2 is arranged at the top of the desulfurizing tower body 1, and a spraying system 3 and a tray 4 are respectively arranged in the desulfurizing tower body 1 from top to bottom.

Wherein, tray 4 includes annular support 41 and tray body 42, and annular support 41 and the inside wall fixed connection of desulfurizing tower body 1, annular support 41 are equipped with round clamping recess 411, and the opening of clamping recess 411 upwards sets up. The tray body 42 is circular, and a circle of downward extending clamping plates 421 are arranged on the outer side edge of the tray body 42, and the clamping plates 421 are clamped and assembled with the clamping grooves 411. That is, the annular support 41 and the tray body 42 are detachably mounted therebetween.

Wherein, still be equipped with a plurality of setting elements 43 between tray body 42 and annular support 41, through setting up setting element 43, can improve stability and reliability after the installation between tray body 42 and the annular support 41.

After the integrated tower for desulfurizing, dehumidifying and chimney of the embodiment of the utility model runs for a period of time, when the tray body 42 of the tray 4 is damaged, the damaged tray body 42 can be detached from the annular support 41, and then a new tray body 42 can be clamped on the annular support 41 again.

Therefore, the integrated tower for desulfurizing, dehumidifying and chimney provided by the utility model is convenient for replacing the tray body 42 by the detachable installation mode between the tray body 42 and the annular supporting piece 41, and has higher replacement efficiency without cutting and welding during replacement.

In some embodiments of the present utility model, the annular supporting member 41 includes an annular horizontal plate 412 and an annular inclined plate 413, wherein an outer ring of the horizontal plate 412 is welded to an inner side wall of the desulfurizing tower body 1, and a lower end of the inclined plate 413 is fixedly connected to an inner ring of the horizontal plate 412, so that a clamping groove 411 is formed by surrounding the inner side wall of the desulfurizing tower body 1, the horizontal plate 412 and the inclined plate 413 for clamping with a clamping plate 421 on the tray body 42.

The included angle between the horizontal plate 412 and the inclined plate 413 is an obtuse angle, so that the tray body 42 is convenient to clamp.

In some embodiments of the present utility model, the positioning member 43 is a positioning pin, a plurality of first positioning holes 414 corresponding to the positioning pins are provided on the inclined plate 413, a plurality of second positioning holes 422 corresponding to the first positioning holes 414 are provided on the clamping plate 421, and the positioning pins respectively pass through the corresponding first positioning holes 414 and the second positioning holes 422. When the tray body 42 is assembled with the annular supporting member 41, the clamping plate 421 of the tray body 42 is clamped in the clamping groove 411 of the annular supporting member 41, then the tray body 42 is rotated, so that each second positioning hole 422 is respectively corresponding to each first positioning hole 414, and then the positioning pins respectively pass through the corresponding first positioning holes 414 and second positioning holes 422, thereby realizing reliable installation between the tray body 42 and the annular supporting member 41.

Of course, the positioning member 43 may also employ positioning bolts according to practical requirements.

In some embodiments of the present utility model, a mist eliminator 5 is installed in the desulfurizing tower body 1, wherein the mist eliminator 5 is located above the spray system 3. Through setting up defroster 5, can collect fog grain, thick liquid droplet etc. entrained in the flue gas after spraying, realize the defogging treatment to the flue gas.

In some embodiments of the present utility model, a wet electric precipitator 6 is installed in the desulfurizing tower body 1, and the wet electric precipitator 6 is located above the mist eliminator 5. Through setting up wet-type electrostatic precipitator 6 for carry out further dust removal to the flue gas after defogging processing.

In some embodiments of the present utility model, a slurry pond 7 is provided at the bottom of the desulfurizing tower body 1, and the tray 4 is located above the slurry pond 7. By providing a slurry reservoir 7, the shower-drop slurry is collected.

In some embodiments of the present utility model, the desulfurizing tower body 1 includes an upper reducing section 101, a dust removing section 102, a lower reducing section 103 and a spray mist removing section 104 which are sequentially connected from top to bottom, the upper reducing section 101 is a conical cavity section with a smaller upper part and a larger lower part, the dust removing section 102 is a straight cylindrical cavity section, the lower reducing section 103 is a conical cavity section with a larger upper part and a smaller lower part, and the spray mist removing section 104 is a straight cylindrical cavity section, wherein the diameter of the dust removing section 102 is larger than the diameter of the spray mist removing section 104.

Wherein, chimney 2 installs in the upper end of last reducing section 101, and wet electrostatic precipitator 6 installs in dust removal section 102, and defroster 5, spraying system 3, tray 4 and thick liquid pond 7 are installed respectively in spraying defogging section 104. Through setting up reducing section 103 down, can make flue gas after defogging processing fully contact with wet electrostatic precipitator 6 to wet electrostatic precipitator 6 has improved the dust removal effect to the flue gas. By arranging the upper reducing section 101, the flue gas subjected to dust removal treatment can be discharged in a concentrated manner.

Specifically, a flue gas outlet 8 is formed in the top of the chimney 2, a flue gas inlet 9 is formed in the side wall of the spray demisting section 104, the flue gas inlet 9 is located below the tray 4, and the flue gas inlet 9 is located above the slurry pond 7.

In some embodiments of the present utility model, the spraying system 3 includes a plurality of slurry spraying main pipes 301, a plurality of slurry spraying branch pipes 302 are connected to each slurry spraying main pipe 301, a plurality of nozzles 303 are connected to each slurry spraying branch pipe 302, and each nozzle 303 is disposed downward. Wherein the slurry spraying main pipe 301 adopts a pipeline with a constant cross section, and the slurry spraying branch pipe 302 adopts a pipeline with a gradual change cross section.

Wherein, each slurry spraying main pipe 301 adopts a drop-shaped section pipeline, the tip end of the drop-shaped section pipeline is downward, the long axis of the drop-shaped section pipeline is parallel to the direction of the flow velocity of the flue gas, and the short axis of the drop-shaped section pipeline is perpendicular to the flow velocity of the flue gas. Wherein each slurry spraying branch pipe 302 adopts an oval-shaped section pipeline, the long axis of the oval-shaped section pipeline is parallel to the direction of the flow velocity of the flue gas, and the short axis of the oval-shaped section pipeline is perpendicular to the flow velocity of the flue gas.

Through arranging the slurry spraying main pipe 301 and the slurry spraying branch pipe 302 according to the mode, the projection area of the slurry spraying main pipe 301 and the slurry spraying branch pipe 302 can be greatly reduced, so that the resistance of a spraying system is reduced, the flow field of flue gas is optimized, the energy consumption of the spraying system is reduced, the mass transfer efficiency is improved, and the desulfurization efficiency of the desulfurization, wet and chimney integrated tower is further improved.

In addition, the slurry spray main pipe 301 and the slurry spray branch pipe 302 arranged in the above manner will have significantly increased resistance moment and inertia moment of the pipe section, so that the bending resistance bearing capacity of the slurry spray main pipe 301 and the slurry spray branch pipe 302 will be significantly improved, the deflection will be smaller, and meanwhile, water accumulation at the bottom outside the pipe can be prevented.

Taking a million units as an example, the diameter of the original desulfurizing tower body is 19.6m, and each layer is provided with two slurry spraying main pipes with the diameter of 0.9 m. If the main slurry spraying pipe 301 with the water drop-shaped section in this embodiment is adopted, the main slurry spraying pipe 301 with the short axis of the water drop-shaped section of 0.55m is selected according to the principle of equal flow area, and the long axis of the water drop-shaped section can be calculated according to the equal area. After the slurry spraying main pipes 301 with the water drop-shaped section in the embodiment are adopted, the length is 18.6m, the windward area of the single-layer slurry spraying main pipe 301 is 20.46 square meters, the area of the single-layer slurry spraying main pipe 301 occupies 6.78% of the cross section area of the desulfurizing tower body, and compared with the original design, the length is reduced by 4.32%.

The diameter of the original thick section of the slurry spraying branch pipe is 0.25m, and the diameter of the thin section is 0.20m. If the slurry shower branch pipe 302 of the present embodiment is employed, the short axis of the elliptical cross section of the large head of the slurry shower branch pipe 302 is 0.16m, the short axis of the elliptical cross section of the small head is 0.12m, and the total length is about 101m, the projected area of the single-layer slurry shower branch pipe 302 is 14.14 square meters. The area of the single-layer slurry spraying branch pipe 302 occupies 4.69 percent of the cross section area of the desulfurizing tower body, and is reduced by 2.47 percent compared with the original design.

That is, the areas of the slurry spray header 301 and the slurry spray manifold 302 of each tier are reduced by about 6.79% in total. If the slurry spraying main pipe 301 adopts a water drop-shaped section pipeline and the slurry spraying branch pipe 302 adopts an oval section pipeline according to the calculation that the spraying system 3 comprises a four-layer structure, the total pipeline windward area of the spraying system 3 is reduced by 27.16 percent. Therefore, the resistance of the integrated desulfurizing, dehumidifying and chimney tower is reduced by 27.16% at the spraying system 3, and the performance of the integrated desulfurizing, dehumidifying and chimney tower is greatly improved.

The working principle of the integrated desulfurizing, dehumidifying and chimney tower provided by the embodiment of the utility model is as follows:

when the integrated desulfurizing, dehumidifying and chimney tower works, flue gas flows upwards after entering the desulfurizing tower body 1 from the flue gas inlet 9, the spraying system 3 conveys limestone slurry to the slurry spraying branch pipes 302 through the slurry spraying main pipe 301, then conveys the limestone slurry to each nozzle 303 from the slurry spraying branch pipes 302, and downwards sprays the limestone slurry through the nozzles 303, and the downwards sprayed limestone slurry and upward flue gas flow carry out mass transfer reaction to generate gypsum, so that the purpose of removing sulfur oxides in the flue gas is achieved. After desulfurization by spraying, the flue gas passes through a demister 5 to remove water, and then passes through a wet electric precipitator 6 to be subjected to dust removal treatment, and is discharged through a flue gas outlet 8 of the chimney 2. In the desulfurization treatment process of the flue gas, sprayed limestone slurry passes through the through holes of the tray body 42 and is collected in the slurry pool 7 below.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (9)

1. The integrated tower is characterized by comprising a desulfurizing tower body, wherein a chimney is arranged at the top of the desulfurizing tower body, and a spraying system and a tray are respectively arranged in the desulfurizing tower body from top to bottom; the tray comprises an annular supporting piece and a tray body, wherein the annular supporting piece is fixedly connected with the inner side wall of the desulfurizing tower body, and the annular supporting piece is provided with a circle of clamping grooves with upward openings; the tray body is circular, a circle of downwards extending clamping plates are arranged on the outer side edge of the tray body, and the clamping plates are clamped and combined with the clamping grooves; a plurality of positioning pieces are arranged between the clamping plate and the clamping groove.

2. The integrated desulfurization, dehumidification and chimney tower according to claim 1, wherein the annular supporting member comprises an annular horizontal plate and an annular inclined plate, an outer ring of the horizontal plate is welded and fixed with an inner side wall of the desulfurization tower body, and a lower end of the inclined plate is fixedly connected with an inner ring of the horizontal plate, so that the clamping groove is formed by enclosing among the inner side wall of the desulfurization tower, the horizontal plate and the inclined plate.

3. The integrated desulfurization, dehumidification chimney tower according to claim 2, wherein the angle between the horizontal plate and the inclined plate is an obtuse angle.

4. The integrated desulfurization, dehumidification and chimney tower according to claim 2, wherein the positioning piece is a positioning pin, a plurality of first positioning holes corresponding to the positioning pins one by one are formed in the inclined plate, a plurality of second positioning holes corresponding to the first positioning holes one by one are formed in the clamping plate, and the positioning pins respectively penetrate through the corresponding first positioning holes and the corresponding second positioning holes.

5. The integrated desulfurization, dehumidification and chimney tower according to any one of claims 1 to 4, characterized in that a demister is installed in the desulfurization tower body, the demister being located above the spray system.

6. The integrated desulfurization, dehumidification and chimney tower according to claim 5, characterized in that a wet electric precipitator is installed in the desulfurization tower body, and the wet electric precipitator is located above the demister.

7. The integrated desulfurization, dehumidification and chimney tower according to claim 6, wherein a slurry pool is provided at the bottom of the desulfurization tower body, and the tray is located above the slurry pool.

8. The integrated desulfurization, dehumidification and chimney tower according to claim 7, wherein the desulfurization tower body comprises an upper reducing section, a dust removing section, a lower reducing section and a spray demisting section which are sequentially connected from top to bottom, wherein the upper reducing section is a conical cavity section with a small upper part and a large lower part, the dust removing section is a straight cylindrical cavity section, the lower reducing section is a conical cavity section with a large upper part and a small lower part, the spray demisting section is a straight cylindrical cavity section, and the diameter of the dust removing section is larger than that of the spray demisting section;

the chimney is installed in the upper end of last reducing section, wet-type electrostatic precipitator install in the dust removal section, the defroster spray system, the tray with the thick liquid pond install respectively in spray the defogging section.

9. The integrated desulfurization, dehumidification and chimney tower according to claim 8, wherein a flue gas outlet is formed in the top of the chimney, a flue gas inlet is formed in the side wall of the spray demisting section, the flue gas inlet is located below the tray, and the flue gas inlet is located above the slurry pond.