CN112023677A - Turbocharging type negative pressure water absorption desulfurization and denitrification equipment - Google Patents
Turbocharging type negative pressure water absorption desulfurization and denitrification equipment Download PDFInfo
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- CN112023677A CN112023677A CN202010927467.6A CN202010927467A CN112023677A CN 112023677 A CN112023677 A CN 112023677A CN 202010927467 A CN202010927467 A CN 202010927467A CN 112023677 A CN112023677 A CN 112023677A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/50—Combinations of absorbents
- B01D2252/504—Mixtures of two or more absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Abstract
The invention discloses a turbocharged negative pressure water absorption desulfurization and denitrification device, which comprises: a SOx/NOx control section of thick bamboo, turbocharging device and negative pressure atomizing section of thick bamboo. Wherein, the turbocharging device and the negative pressure atomizing cylinder are accommodated in the desulfurization and denitrification cylinder; the desulfurization and denitrification cylinder is provided with a water inlet, a water outlet, an air inlet and an air outlet; and the air inlet of the desulfurization and denitrification cylinder is communicated with the negative pressure atomization cylinder through a turbocharging device. An exhaust fan is arranged at the exhaust port of the desulfurization and denitrification cylinder. The turbo-charging device includes: the turbine comprises an air inlet pipe, a turbine pipe and a turbine body; the air inlet pipe is communicated with the turbine pipe, the air inlet pipe is connected with an air inlet of the desulfurization and denitrification cylinder, an air outlet of the turbine pipe is communicated with the negative pressure atomization cylinder, and the turbine body is accommodated in the turbine pipe; the exhaust fan is in driving connection with the turbine body through a rotating shaft; the negative pressure atomization cylinder also comprises a negative pressure water suction pipe. The turbocharging type negative pressure water absorption desulfurization and denitrification equipment can ensure that the flow velocity of industrial waste gas used as atomization power meets the atomization requirement.
Description
Technical Field
The invention relates to desulfurization and denitrification equipment, in particular to turbocharged negative-pressure water absorption desulfurization and denitrification equipment.
Background
In order to reduce the environmental pollution caused by industrial waste gas, the industrial waste gas needs to be subjected to desulfurization and denitrification, and harmful nitrogen-containing organic waste gas and sulfur-containing waste gas in the industrial waste gas are filtered. Among them, wet desulfurization and denitration are considered as important technical means with good application prospects. The wet desulfurization and denitration is to atomize an absorbent solution mixed with urea, potassium permanganate and lime milk so as to enable the absorbent solution to contact and react with industrial waste gas. During the reaction process, the absorbent solution will absorb nitrogen and sulfur in the industrial waste gas and form a precipitate, for example, calcium ions in the lime milk solution react with sulfate ions to produce calcium sulfate precipitate.
The liquid atomization mode of wet desulfurization and denitration comprises pressure atomization, rotary disc atomization, gas atomization, sound wave atomization and the like, wherein the gas atomization is to atomize an absorbent solution by adopting gas flowing at a high speed. In the practical application process, industrial waste gas can be used as atomized gas. However, the flow rate of the industrial waste gas is not stable enough, and when the flow rate of the industrial waste gas is insufficient, the absorbent solution cannot be atomized. Therefore, how to design a turbocharging type negative pressure water absorption desulfurization and denitrification device ensures that the flow velocity of industrial waste gas used as atomization power meets the atomization requirement, which is a technical problem to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a turbocharging type negative pressure water absorption desulfurization and denitrification device, which ensures that the flow velocity of industrial waste gas used as atomization power meets the atomization requirement.
The purpose of the invention is realized by the following technical scheme:
a turbocharged negative pressure water absorption desulfurization and denitrification equipment, it includes: the device comprises a desulfurization and denitrification cylinder, a turbocharging device and a negative pressure atomization cylinder;
a hollow cavity is formed inside the desulfurization and denitrification cylinder, and the turbocharging device and the negative pressure atomization cylinder are accommodated in the hollow cavity of the desulfurization and denitrification cylinder;
the desulfurization and denitrification cylinder is provided with a water inlet, a water outlet, an air inlet and an air outlet;
the air inlet of the desulfurization and denitrification cylinder is communicated with the negative pressure atomization cylinder through the turbocharging device;
an exhaust fan is arranged at an exhaust port of the desulfurization and denitrification cylinder and is in driving connection with the turbocharging device;
the turbocharger device includes: the turbine comprises an air inlet pipe, a turbine pipe and a turbine body; the air inlet pipe is communicated with the turbine pipe, the air inlet pipe is connected with an air inlet of the desulfurization and denitrification cylinder, an air outlet of the turbine pipe is communicated with the negative pressure atomization cylinder, and the turbine body is accommodated in the turbine pipe; the exhaust fan is in driving connection with the turbine body through a rotating shaft;
an exhaust and drainage channel is formed by the outer side surface of the negative pressure atomizing cylinder and the inner side wall of the desulfurization and denitrification cylinder, a spray nozzle is formed on the negative pressure atomizing cylinder, and a standing precipitation tank is formed at the bottom of the desulfurization and denitrification cylinder;
the negative pressure atomization cylinder further comprises a negative pressure water suction pipe, the negative pressure water suction pipe is provided with a water suction end and a spraying end, the water suction end of the negative pressure water suction pipe is positioned in the standing precipitation tank, and the spraying end of the negative pressure water suction pipe is positioned in the spraying port;
the water suction end of the negative pressure water suction pipe is bent upwards;
the spraying end of the negative pressure water suction pipe and the spraying port face the inner side surface of the desulfurization and denitrification cylinder and are inclined downwards.
In one embodiment, the side wall of the negative pressure atomizing cylinder is provided with a plurality of the spraying openings, and the plurality of the spraying openings are uniformly distributed on the side wall of the negative pressure atomizing cylinder.
In one embodiment, the negative pressure suction pipe comprises a primary negative pressure suction pipe and a secondary negative pressure suction pipe, and the spraying end of the primary negative pressure suction pipe is positioned below the spraying end of the secondary negative pressure suction pipe.
In one embodiment, the number of the primary negative pressure water suction pipes is multiple, and the multiple primary negative pressure water suction pipes are distributed in an annular array by taking a central shaft of the negative pressure atomizing cylinder as a center; the number of the secondary negative pressure water suction pipes is multiple, and the secondary negative pressure water suction pipes are distributed in an annular array by taking the central shaft of the negative pressure atomizing cylinder as the center.
In one embodiment, the water suction end of the negative pressure water suction pipe is provided with a filter.
In one embodiment, a grid mesh is arranged at the exhaust port.
In one embodiment, the central axes of the air inlet, the air outlet, the turbine body and the exhaust fan are all on the same straight line.
In one embodiment, the static settling tank has an inclined tank wall.
In conclusion, the turbocharging type negative pressure water absorption desulfurization and denitrification equipment can ensure that the flow velocity of the industrial waste gas used as atomization power meets the atomization requirement, and ensures that the industrial waste gas is subjected to desulfurization and denitrification more stably.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of a turbocharged negative pressure water absorption desulfurization and denitrification apparatus of the present invention;
FIG. 2 is a schematic structural diagram of the turbocharged negative pressure water absorption desulfurization and denitrification apparatus shown in FIG. 1;
FIG. 3 is a schematic plan view of the turbocharged negative pressure water absorption desulfurization and denitrification apparatus shown in FIG. 1;
FIG. 4 is a plan sectional view of the turbo-charged negative pressure water absorption desulfurization and denitrification apparatus;
FIG. 5 is a partial sectional view of a turbocharged negative pressure water absorption desulfurization and denitrification apparatus;
fig. 6 is a schematic plan structure view of another embodiment of a turbocharged negative pressure water absorption desulfurization and denitrification apparatus.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the present invention discloses a turbocharged negative pressure water absorption desulfurization and denitrification apparatus 10, which includes: a desulfurization and denitrification cylinder 100, a turbocharger 200 and a negative pressure atomization cylinder 300. A hollow cavity is formed inside the desulfurization and denitrification cylinder 100, and the turbocharger device 200 and the negative pressure atomization cylinder 300 are accommodated in the hollow cavity of the desulfurization and denitrification cylinder.
As shown in fig. 3, the desulfurization and denitrification cylinder 100 is provided with a water inlet 110, a water outlet 120, an air inlet 130 and an air outlet 140. The air inlet 130 of the desulfurization and denitrification cylinder 100 is communicated with the negative pressure atomization cylinder 300 through the turbocharging device 200. As shown in fig. 2, an exhaust fan 400 is disposed at the exhaust port 140 of the desulfurization and denitrification unit 100, and the exhaust fan 400 is drivingly connected to the turbocharger 200.
Specifically, as shown in fig. 4, the turbocharger device 200 includes: an inlet pipe 210, a turbine pipe 220, and a turbine body 230. The air inlet pipe 210 is communicated with the turbine pipe 220, the air inlet pipe 210 is connected with the air inlet 130 of the desulfurization and denitrification cylinder 100, the air outlet 221 of the turbine pipe 220 is communicated with the negative pressure atomization cylinder 300, and the turbine body 230 is accommodated in the turbine pipe 220. The exhaust fan 400 is drivingly connected to the turbine body 230 through a rotating shaft 410, and the exhaust fan 400 is independently driven by a driving motor and provides rotational power to the turbine body 230 through the rotating shaft 410.
Specifically, as shown in fig. 4, the outer side surface of the negative pressure atomizing cylinder 300 and the inner side wall of the desulfurization and denitrification cylinder 100 form an exhaust and drainage channel 500, and the negative pressure atomizing cylinder 300 is provided with a spray opening 310. A standing precipitation tank 150 is formed at the bottom of the desulfurization and denitrification cylinder 100, and the standing precipitation tank 150 is used for standing precipitation of the absorbent solution, so that the precipitate in the absorbent solution can slowly sink to the bottom of the standing precipitation tank 150.
As shown in fig. 4, the negative pressure atomizing cylinder 300 further includes a negative pressure suction pipe 320, the negative pressure suction pipe 320 has a suction end 321 and a spraying end 322, the suction end 321 of the negative pressure suction pipe 320 is located in the standing precipitation tank 150, and the spraying end 322 of the negative pressure suction pipe 320 is located in the spraying port 310. The negative pressure suction pipe 320 can suck the absorbent solution in the standing precipitation tank 150 to the spray opening 310 by negative pressure and atomize and spray the absorbent solution at the same time, which will be described in detail below.
It should be noted that the water suction end 321 of the negative pressure water suction pipe 320 is bent upwards, and the spraying end 322 of the negative pressure water suction pipe 320 and the spraying port 310 both face the inner side surface of the desulfurization and denitrification cylinder 100 and are inclined downwards. Specific design principles will be set forth below.
The following explains the working principle of the turbocharged negative pressure water absorption desulfurization and denitrification apparatus 10:
before the start of desulfurization and denitrification, the water inlet 110 of the desulfurization and denitrification drum 100 is opened, and an absorbent solution is injected into the standing precipitation tank 150. The injected absorbent solution will accumulate in the still standing precipitation tank 150 and the water level will rise slowly. When the absorbent solution passes through the water suction end 321 of the negative pressure water suction pipe 320, the water inlet 110 can be closed, and desulfurization and denitrification are started;
when the desulfurization and denitrification are started, the driving motor is started to rotate the exhaust fan 400, and at the same time, the industrial waste gas rapidly flows into the air inlet pipe 210 of the turbocharger device 200 under the action of external pressure. Since the exhaust fan 400 is connected to the turbine body 230 via the drive shaft 410, the turbine body 230 rotates with the rotation of the exhaust fan 400. With the rotation of the turbine body 230, the industrial waste gas in the air inlet pipe 210 is sucked into the turbine pipe 220, finally enters the negative pressure atomizing cylinder 300 through the air outlet 221 of the turbine pipe 220, and forms a higher air pressure in the negative pressure atomizing cylinder 300. At this time, there is a pressure difference between the inside and the outside of the negative pressure atomizing cylinder 300, and the industrial waste gas enters the air discharging and water discharging passage 500 from the inside of the negative pressure atomizing cylinder 300 through the spraying opening 310. And because the aperture of the spray opening 310 is narrow, the air flow velocity is fast when the industrial waste gas passes through, and further, the air pressure of the high-speed flowing air flow at the spray opening 310 is reduced, namely, a negative pressure state is formed. Under the action of air pressure, the absorbent solution is sucked to the spray opening 310 through the negative pressure suction pipe 320 and is sprayed out, which is similar to the process of sucking water with a suction pipe in life. Due to the high velocity of the air stream at spray opening 310, the absorbent sprayed at spray opening 310 is torn into droplets by the high velocity air stream, i.e., atomization occurs. The contact area of the atomized and sprayed absorbent solution and the industrial waste gas in the exhaust and drainage channel 500 is greatly increased, and the desulfurization and denitrification effects can be obviously improved;
the absorbent solution is sprayed out and then gathered on the inner side surface of the desulfurization and denitrification cylinder 100, and slowly flows into the standing precipitation tank 150 along the side wall of the desulfurization and denitrification cylinder 100. Among them, the absorbent participating in desulfurization and denitrification will produce precipitate, for example, calcium ion reacts with sulfate ion to produce calcium sulfate precipitate. The precipitate flows into the still standing precipitation tank 150 together with the absorbent solution. Because the flow rate of the absorbent solution is slow, the precipitate after desulfurization and denitrification of the absorbent solution will slowly sink in the standing precipitation tank 150. The clearer part of the absorbent solution near the water surface will be sucked to the spray opening 310 again by the negative pressure suction pipe 320, and participate in the next cycle. The flue gas after desulfurization and denitrification is sucked by the exhaust fan 400 and rises along the exhaust/drainage duct 500, and is finally discharged out of the desulfurization/denitrification drum 100 through the exhaust port 140.
It should be noted that, although the industrial waste gas can enter the negative pressure atomization cylinder 300 through the turbocharger 200 under the action of the external pressure, the pressure of the industrial waste gas is not stable in this case. The turbocharger 200 is designed to ensure that the pressure of the industrial waste gas in the negative pressure atomization cylinder 300 is always sufficient to suck up and atomize the absorbent solution. And the turbo charger 200 is driven by the exhaust fan 400, which can reduce the occupied space and the energy consumption compared with the turbo charger 200 driven independently.
The following explains the design principle of the turbocharged negative pressure water absorption desulfurization and denitrification apparatus 10:
referring to fig. 3, the water suction end 321 of the negative pressure water suction pipe 320 is bent upward, so that when the negative pressure water suction pipe 320 sucks the absorbent solution, a small part of the water layer on the upper layer in the standing precipitation tank 150 is mainly affected, and the influence on the large part of the water layer in the standing precipitation tank 150 can be avoided as much as possible, so as to maintain a better standing precipitation environment for the absorbent solution in the standing precipitation tank 150;
referring to fig. 4, the spraying end 322 and the spraying opening 310 of the negative pressure suction pipe 320 face the inner side of the desulfurization and denitrification cylinder 100 and are inclined downward, so that the absorbent and the industrial waste gas can be sprayed downward and blocked by the inner side of the desulfurization and denitrification cylinder 100. Due to the blocking of the desulfurization and denitrification cylinder 100, on one hand, the flow velocity of the industrial waste gas is reduced, so that the contact time of the industrial waste gas and the atomized absorbent can be prolonged, and the desulfurization and denitrification effects of the industrial waste gas are improved; on the other hand, the absorbent solution is gathered on the inner side surface of the desulfurization and denitrification cylinder 100 after being sprayed out, and slowly flows into the standing and precipitating tank 150 along the side wall of the desulfurization and denitrification cylinder 100, so that a better standing and precipitating environment in the standing and precipitating tank 150 is maintained;
referring to fig. 4, the standing precipitation tank 150 has inclined tank walls, which are designed to better concentrate and accumulate the precipitate in the absorbent solution and facilitate cleaning; on the other hand, in order to reduce the volume of the standing precipitation tank 150, the absorbent solution in the standing precipitation tank 150 can not exceed the water suction end 321 of the negative pressure water suction pipe 320 too much, and the usage amount of the single absorbent solution is reduced.
It is emphasized that, in the present embodiment, as shown in fig. 4, the central axes of the air inlet 130, the air outlet 140, the turbine body 23 and the exhaust fan 400 are all aligned, so that the exhaust fan 400 can directly drive the turbine body 23 through the transmission shaft 410 without being matched by other mechanical structures, thereby ensuring high mechanical efficiency.
In one embodiment, as shown in fig. 5, a plurality of spray outlets 310 are formed on a side wall of the negative pressure atomizing barrel 300, and the plurality of spray outlets 310 are uniformly distributed on the side wall of the negative pressure atomizing barrel 300. In certain embodiments, suction line 320 comprises a primary suction line 330 and a secondary suction line 340, and the spray end of primary suction line 330 is located below the spray end of secondary suction line 340. Correspondingly, the number of the primary negative pressure suction pipes 330 is multiple, and the multiple primary negative pressure suction pipes 330 are distributed in an annular array with the central axis of the negative pressure atomizing cylinder 300 as the center; the number of the secondary negative pressure suction pipes 340 is plural, and the plural secondary negative pressure suction pipes 340 are distributed in an annular array with the central axis of the negative pressure atomizing cylinder 300 as the center. So, a plurality of nozzle 310 of bilayer can be to each direction blowout industrial waste gas and absorbent to improve SOx/NOx control efficiency, reach better SOx/NOx control effect.
In one embodiment, as shown in fig. 6, a flow-guiding air-blocking sheet 350 is further disposed on the side wall of the negative pressure atomizing cylinder 300, and a gap 600 is formed between the flow-guiding air-blocking sheet 350 and the inner side surface of the desulfurization and denitrification cylinder 200. The design of the flow directing gas barrier sheet 350 has two benefits: firstly, the flow direction of the sprayed absorbent is guided, the sprayed absorbent is blocked and guided by the drainage gas barrier piece 350, the absorbent is guided to the gap 600 and flows into the standing precipitation tank 150 along the inner side surface of the desulfurization and denitrification cylinder 100, so that the flow rate of the absorbent flowing into the standing precipitation tank 150 is greatly reduced, the standing precipitation environment of the absorbent solution in the standing precipitation tank 150 is kept as much as possible, and standing precipitation is facilitated; secondly, the rising of industrial waste gas is stopped, most of the exhaust and drainage channels 500 are blocked by the drainage gas blocking pieces 350, so that the industrial waste gas sprayed by the lower-layer spraying ports 310 can be discharged through the exhaust port 140 only through the gaps 600, the flow speed of the industrial waste gas in the exhaust and drainage channels 500 is reduced to a certain extent, the time for desulfurization and denitrification of the industrial waste gas is prolonged, and a better desulfurization and denitrification effect is achieved.
In one embodiment, suction end 321 of suction tube 320 is provided with a filter (not shown), so that suction tube 320 can better filter out precipitates in the absorbent solution, and reduce the possibility of blockage of suction tube 320 and spray nozzle 310.
In one embodiment, the exhaust port 140 of the desulfurization and denitrification cylinder 100 is provided with a grid net 700 (as shown in fig. 2), so that foreign matters can be prevented from entering the desulfurization and denitrification cylinder 100 from the exhaust port 140 to affect desulfurization and denitrification.
In conclusion, the turbocharged negative pressure water absorption desulfurization and denitrification apparatus 10 of the present invention can ensure that the flow velocity of the industrial waste gas used as the atomization power meets the atomization requirement, and ensure that the industrial waste gas is subjected to desulfurization and denitrification more stably.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides a turbocharged formula negative pressure desulfurization and denitrification equipment that absorbs water which characterized in that includes: the device comprises a desulfurization and denitrification cylinder, a turbocharging device and a negative pressure atomization cylinder;
a hollow cavity is formed inside the desulfurization and denitrification cylinder, and the turbocharging device and the negative pressure atomization cylinder are accommodated in the hollow cavity of the desulfurization and denitrification cylinder;
the desulfurization and denitrification cylinder is provided with a water inlet, a water outlet, an air inlet and an air outlet;
the air inlet of the desulfurization and denitrification cylinder is communicated with the negative pressure atomization cylinder through the turbocharging device;
and an exhaust fan is arranged at the exhaust port of the desulfurization and denitrification cylinder and is in driving connection with the turbocharging device.
2. The turbocharged negative pressure water absorption, desulfurization and denitrification apparatus of claim 1,
the turbocharger device includes: the turbine comprises an air inlet pipe, a turbine pipe and a turbine body; the air inlet pipe is communicated with the turbine pipe, the air inlet pipe is connected with an air inlet of the desulfurization and denitrification cylinder, an air outlet of the turbine pipe is communicated with the negative pressure atomization cylinder, and the turbine body is accommodated in the turbine pipe; the exhaust fan is in driving connection with the turbine body through a rotating shaft;
an exhaust and drainage channel is formed by the outer side surface of the negative pressure atomizing cylinder and the inner side wall of the desulfurization and denitrification cylinder, a spray nozzle is formed on the negative pressure atomizing cylinder, and a standing precipitation tank is formed at the bottom of the desulfurization and denitrification cylinder;
the negative pressure atomization cylinder further comprises a negative pressure water suction pipe, the negative pressure water suction pipe is provided with a water suction end and a spraying end, the water suction end of the negative pressure water suction pipe is positioned in the standing precipitation tank, and the spraying end of the negative pressure water suction pipe is positioned in the spraying port;
the water suction end of the negative pressure water suction pipe is bent upwards;
the spraying end of the negative pressure water suction pipe and the spraying port face the inner side surface of the desulfurization and denitrification cylinder and are inclined downwards.
3. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus of claim 2, wherein the side wall of the negative pressure atomizing barrel is provided with a plurality of the spray nozzles, and the plurality of the spray nozzles are uniformly distributed on the side wall of the negative pressure atomizing barrel.
4. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus according to claim 3, wherein the negative pressure water absorption pipe comprises a primary negative pressure water absorption pipe and a secondary negative pressure water absorption pipe, and a spraying end of the primary negative pressure water absorption pipe is located below a spraying end of the secondary negative pressure water absorption pipe.
5. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus of claim 4, wherein the number of the primary negative pressure water absorption tubes is multiple, and the multiple primary negative pressure water absorption tubes are distributed in an annular array around a central axis of the negative pressure atomizing cylinder; the number of the secondary negative pressure water suction pipes is multiple, and the secondary negative pressure water suction pipes are distributed in an annular array by taking the central shaft of the negative pressure atomizing cylinder as the center.
6. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus of claim 2, wherein a filter is disposed on the water absorption end of the negative pressure water absorption pipe.
7. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus of claim 2, wherein a grid net is arranged at the exhaust port.
8. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus of claim 2, wherein the central axes of the air inlet, the air outlet, the turbine body, and the exhaust fan are all on the same straight line.
9. The turbocharged negative pressure water absorption desulfurization and denitrification apparatus according to claim 2, wherein the standing precipitation tank has an inclined tank wall.
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| CN202010927467.6A CN112023677B (en) | 2020-09-07 | 2020-09-07 | Turbocharging type negative pressure water absorption desulfurization and denitrification equipment |
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| CN117101383A (en) * | 2023-08-26 | 2023-11-24 | 秦强 | Desulfurization and denitrification equipment and process thereof |
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| CN112023677B (en) | 2022-12-27 |
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