CN112774426A - Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device - Google Patents
Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device Download PDFInfo
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- CN112774426A CN112774426A CN202110160087.9A CN202110160087A CN112774426A CN 112774426 A CN112774426 A CN 112774426A CN 202110160087 A CN202110160087 A CN 202110160087A CN 112774426 A CN112774426 A CN 112774426A
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/002—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 condensation
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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
- B01D53/50—Sulfur oxides
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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
- B01D2258/0283—Flue gases
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Abstract
The invention discloses a desulfurization depth effect-improving and flue gas condensing integrated device, which comprises an independent circulating spray device; the independent circulating spray device comprises a circulating spray layer, a diversion cap layer and a spray water collecting layer which are sequentially arranged in the desulfurization tower from top to bottom; the circulating spraying layer comprises a plurality of nozzles which are centrosymmetric and are arranged in a plane; the flow guide cap layer comprises a plurality of trapezoidal flow guide caps, each trapezoidal flow guide cap corresponds to the nozzle of the circulating spray layer one by one, and the trapezoidal flow guide caps are positioned right below the corresponding nozzles; the spray water collection layer is positioned under the trapezoidal diversion cap, and a channel for smoke to flow is arranged at the spray water collection layer; the independent circulating spray device also comprises a spray water cooling circulating device arranged outside the desulfurizing tower. The invention reduces the temperature of the spray water through the synergistic action of spraying/condensation, is more beneficial to the coagulation of ultrafine dust and aerosol, and improves the removal efficiency of dust, soluble salt, sulfur trioxide and sulfuric acid mist.
Description
Technical Field
The invention relates to the field of deep desulfurization efficiency improvement and flue gas condensation.
Background
Limestone/gypsum wet flue gas desulfurization is the most common desulfurization process for coal-fired power plant boilers and industrial boilers, and the application proportion exceeds 90%. The basic process is to pass the flue gas through a desulfurizing tower, spray the flue gas through a plurality of spraying layers in the desulfurizing tower, and collect sulfur dioxide, dust, soluble salt, sulfur trioxide, sulfuric acid mist and the like in the flue gas.
The design process capacity of the desulfurization unit depends on the sulfur dioxide concentration at the inlet of the unit, which is determined by the composition and calorific value of the coal, and the limit standards for desulfurization emissions, which depend on the emission standards imposed by the local environmental protection agency. When the two factors change, namely, the power plant plans to adopt the fire coal with higher sulfur content according to the operation requirement, or the environmental protection department requires further improvement of the emission standard limit value, the design treatment capacity of the desulfurization device needs to be improved, namely, the efficiency improvement is improved. When the concentration of sulfur dioxide at the inlet of the desulfurization device is not obviously improved, the allowance of the conventional device is slightly insufficient, or the emission requirement is slightly improved, namely when the improvement of the required treatment capacity is small, the improvement modes of adding a spraying layer or adding trays in a tower are generally adopted.
The flue gas entering the desulfurizing tower is high-temperature flue gas, the temperature of the flue gas is generally between 110 ℃ and 130 ℃, the low temperature can reach about 90 ℃, and the high temperature can reach about 160 ℃. The flue gas contacts with the sprayed circulating slurry in the desulfurizing tower, the temperature of the flue gas is reduced to about 50 ℃, meanwhile, the temperature of the slurry is increased to about 50 ℃ because of sufficient heat exchange between the flue gas and the slurry, and a large amount of water is evaporated and then taken away with the flue gas to form saturated clean flue gas after desulfurization. The humidity of the flue gas in the saturated clean flue gas is about 11%, and the flue gas carries spray liquid drops, so pollutants such as dust, soluble salt, sulfur trioxide, sulfuric acid mist and the like. The saturated flue gas is continuously cooled in the chimney to form new condensed water, part of the condensed water is taken away with the flue gas, and part of the condensed water flows down along the inner wall of the chimney, but the flue gas is always kept in a saturated state. After the saturated flue gas is discharged from a chimney (about 210m high), the ambient temperature is lower, and a large amount of flue gas is condensed in the air to form white smoke plume. In part of areas, in order to eliminate visual pollution of smoke plume and collect pollutants such as dust, soluble salt, sulfur trioxide and sulfuric acid mist carried in smoke, a power plant is required to take measures for eliminating the smoke plume. A condensation-reheating measure is generally adopted for eliminating smoke plume, the reheating aim is to improve the lifting height of smoke and enhance the diffusion capability, meanwhile, the smoke forms an unsaturated state of water vapor after being heated, and the smoke plume formed by condensation is avoided; the condensation purpose is that the desulfurization sprays the back and reduces the flue gas temperature for pollutants such as dust, soluble salt, sulfur trioxide and sulfuric acid mist in the flue gas are collected simultaneously to the moisture of saturated flue gas condensation, and the flue gas after the condensation can realize the elimination of visual smoke plume through reheating to higher temperature, has also reduced the required energy consumption of reheat in the time of the condensing process.
The above method carries out the desulfurization and the smoke plume elimination step by step, has large energy consumption, needs to add an additional heat exchange device outside the desulfurizing tower for flue gas treatment, greatly increases the cost and also increases the occupied area of other required equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an integrated device which makes full use of the original space of a desulfurizing tower and can synchronously realize the effects of desulfurization and flue gas condensation.
In order to achieve the aim, the invention provides a desulfurization depth effect-improving and flue gas condensation integrated device, which comprises an independent circulating spray device; the independent circulating spray device comprises a circulating spray layer, a diversion cap layer and a spray water collecting layer which are sequentially arranged in the desulfurization tower from top to bottom; the circulating spraying layer, the trapezoidal diversion cap layer and the spraying water collecting layer are all positioned in the desulfurizing tower and above the demister; the circulating spraying layer comprises a plurality of nozzles which are centrosymmetric and are arranged in a plane; the flow guide cap layer comprises a plurality of trapezoidal flow guide caps, each trapezoidal flow guide cap corresponds to the nozzle of the circulating spray layer one by one, and the trapezoidal flow guide caps are positioned right below the corresponding nozzles; the spray water collection layer is positioned under the trapezoidal diversion cap, and a channel for smoke to flow is arranged at the spray water collection layer; the independent circulating spray device also comprises a spray water cooling and circulating device arranged outside the desulfurization tower, spray water sprayed out of the nozzles of the circulating spray layer sequentially passes through the trapezoidal flow guide cap, the spray water collecting layer and the spray water cooling and circulating device to return to the nozzles again, and spray water circulation is formed.
According to the invention, through the circulating spray device independent of the original spray circulating system of the desulfurization tower, the effects of desulfurization efficiency improvement and flue gas condensation are synchronously realized by utilizing the spray/condensation coordination effect, and meanwhile, the main components comprise the circulating spray layer, the diversion cap layer and the spray water collecting layer which are all arranged in the space in the existing desulfurization tower, so that the space is saved, and the investment cost is reduced; independent spray water circulation does not directly enter the original desulfurization slurry system, and the water balance of the desulfurization system is not influenced.
Meanwhile, the spray water collecting layer is arranged through a channel for flue gas circulation, flue gas circulation from bottom to top is not affected, and spray water directly exchanging heat with the flue gas can be effectively collected.
Further, the spray water collecting layer comprises a plurality of collecting grooves and annular collecting grooves; the annular collecting groove is annular and is fixedly arranged in the desulfurizing tower along the inner wall of the desulfurizing tower by a circle; the collecting tanks are in an inverted V shape and are distributed in the same horizontal section of the desulfurizing tower in parallel, and two ends of each collecting tank are positioned right above the annular collecting tank or directly connected with the annular collecting tank; the gaps between adjacent collecting grooves form the channel for the circulation of the flue gas.
Further, the collecting tank is fixedly arranged in the desulfurizing tower through a horizontal steel frame supporting rod; the flow guide cap is connected with the collecting tank through a metal connecting rod and is fixedly arranged in the desulfurizing tower.
Furthermore, the included angle between the two ends of the inverted V-shaped collecting groove and the horizontal plane is 5 +/-1 degrees. The arrangement of the collecting tank can collect the spray water more effectively.
Further, the total area of the gaps between the collecting grooves is more than 50% of the horizontal cross-sectional area in the desulfurizing tower where the collecting grooves are located, so that the flue gas can pass through more effectively.
Furthermore, the coverage area of the nozzles of the circulating spray layer is between 30% and 35%, so that the full mixing of the flue gas and the cross section of the desulfurizing tower can be met.
Further, the spray water cooling circulation device comprises a water collecting tank, a spray circulation pump, a heat exchanger, a dosing tank and a dosing tank delivery pump; the spray water in the annular collecting groove sequentially passes through the water collecting tank, the spray circulating pump and the heat exchanger through the connecting pipeline and then enters the circulating spray layer; the dosing tank is connected with the water collecting tank through a dosing tank delivery pump. The heat exchanger can adopt a plate heat exchanger, and a heat pump is adopted as a cold source, so that the recovery of low-quality heat is realized.
Furthermore, the water collecting tank is in an L shape with a slender middle upper part and a thick and short lower part. Through the L-shaped arrangement, the output of the spraying circulating pump can be saved, and the energy consumption is reduced. Meanwhile, the water collecting tank is arranged at the middle position of the desulfurizing tower, so that the output of the spraying circulating pump can be further saved.
Further, a bucket type collecting bowl is arranged at the bottom of the water collecting tank and under the water inlet end, a drain outlet of the water collecting tank is formed in the bottom of the bucket type collecting bowl, and a mud blocking partition plate is arranged at the bottom of the water collecting tank, close to the spraying circulating pump, of the bucket type collecting bowl. Utilize the bucket type to collect the solid that contains in the bowl to the shower to accessible header tank drain discharges the shower water part that the bottom contains the solid to former desulfurizing tower thick liquid system, and need not to add the blowdown treatment facility. And the mud baffle is utilized to prevent the leakage of the spray water containing solids.
Further, the bucket type is collected the bowl and is a plurality of, and each bucket type is collected bowl bottom and all is equipped with a header tank drain to realize more effective solid collection.
Further, a dosing port is arranged above the dosing box.
Furthermore, the bottom of the water collecting tank is connected with a spraying circulating pump, and the top of the water collecting tank is connected with a dosing tank delivery pump.
Compared with the prior art, the invention has the following advantages:
1. the integrated device for deep desulfurization efficiency improvement and flue gas condensation can be directly additionally arranged in the existing desulfurization tower, the desulfurization efficiency improvement and the flue gas condensation are synchronously realized, the space is saved, and the investment cost is reduced.
2. The integrated device can effectively improve the removal efficiency of sulfur dioxide: through solitary spraying system and supporting charge device, can adapt to the various demands that the sulfur dioxide desorption ability promoted in a flexible way, if: the concentration of sulfur dioxide at the inlet of the desulfurization device is greatly increased in a short time; in haze weather, the environmental protection department has further requirements on the emission concentration of sulfur dioxide; the power plant has higher requirements on the output of the desulphurization device.
3. The invention condenses the flue gas by adopting a spray cooling mode, so that spray cooling water and the flue gas perform mixed direct heat exchange, thereby improving the heat exchange efficiency and reducing the investment cost.
4. Through the synergistic action of spraying/condensation, the temperature of the spraying water is reduced, the coagulation of ultrafine dust and aerosol is facilitated, and the removal efficiency of dust, soluble salt, sulfur trioxide and sulfuric acid mist is improved.
5. The arrangement height of the L-shaped water collecting tank is improved, and meanwhile, the middle upper part is arranged in a slender shape, so that the output of a spraying circulating pump can be saved, and the energy consumption is reduced.
6. The hopper-shaped collecting bowl below the L-shaped water collecting tank is convenient for collecting solid-containing liquid, and the solid-containing liquid is discharged to the slurry system of the desulfurizing tower through the drain outlet below the hopper-shaped collecting bowl without additionally arranging a sewage disposal facility.
7. The plate heat exchanger is arranged at the outlet of the spraying circulating water pump, and the heat pump is used as a cold source, so that the low-quality heat can be recovered.
8. The water recovered by condensation does not directly enter a desulfurization slurry system, the water balance of the desulfurization system is not influenced, the quality of the recovered water is high, and the recovered water can be used as demister washing water, filter cloth washing water and the like to reduce the water supplement of a desulfurization device.
Drawings
FIG. 1 is a schematic diagram showing the position relationship between a desulfurization depth effect-enhancing and flue gas condensing integrated device and a desulfurization tower according to the present invention;
FIG. 2 is a side view of the trapezoidal deflector cap and collection trough of FIG. 1;
FIG. 3 is a top view of the collection trough and annular collection trough of FIG. 1;
fig. 4 is a schematic structural view of the water collecting tank of fig. 1.
In the figure, 1-desulfurized slurry spraying layer, 2-slurry circulating pump, 3-demister, 4-circulating spraying layer, 5-trapezoidal diversion cap, 6-collecting tank, 7-annular collecting tank, 8-sewer pipe opening, 9-water collecting tank, 10-water inlet end side A, 11-water outlet end side B, 12-bucket type collecting bowl, 13-mud blocking baffle, 14-water collecting tank drain outlet, 15-plate heat exchanger, 16-circulating water inlet for spray water cooling, 17-circulating water outlet for spray water cooling, 18-spraying circulating pump, 19-feeding tank, 20-feeding tank delivery pump, 21-feeding port, 22-metal connecting rod and 23-horizontal steel frame supporting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
as shown in figures 1-4, the invention adopts the independent circulating spray device in the desulfurizing tower, can further integrate and realize the effects of flue gas condensation and smoke plume elimination, the main body part of the integrated device of desulfurization depth effect improvement and flue gas condensation, namely the independent circulating spray device, is arranged at the space position above the demister 3 in the desulfurizing tower, and the desulfurizing tower is also internally provided with a desulfurization slurry spray layer 1 and the demister 3. Wherein, desulfurization slurry sprays layer 1, defroster 3 and the slurry circulating pump 2 that the tower set up outward and all arranges according to the original design of system.
The independent circulating spray device is arranged at the upper space position of the demister 3, and a dosing device, an 'L-shaped' water collecting tank 9 and a circulating cooling system are connected outside the tower.
The independent circulating spray device comprises a circulating spray layer 4, a trapezoidal diversion cap 5, an inverted V-shaped collecting tank 6 and an annular collecting tank 7; the circulating spraying layer 4 is formed by arranging a plurality of spraying devices with hollow conical nozzles on centrosymmetric planes, trapezoidal diversion caps 5 which are in one-to-one correspondence with the hollow conical nozzles are arranged below the circulating spraying layer 4, the trapezoidal diversion caps 5 are also formed by arranging centrosymmetric planes, and a plurality of inverted V-shaped collecting grooves 6 are arranged below the trapezoidal diversion caps 5. As shown in fig. 3, a plurality of inverted V-shaped collecting grooves 6 are arranged in parallel in the same horizontal section of the desulfurization tower, the adjacent inverted V-shaped collecting grooves are arranged in a clearance manner, two ends of each inverted V-shaped collecting groove 6 are communicated with an annular collecting groove 7 arranged below, and the annular collecting grooves 7 are arranged on the inner wall of the desulfurization tower in an annular manner and are connected with an L-shaped water collecting tank 9 outside the tower and a circulating spray cooling system.
Saturated wet flue gas can pass through a gap between the inverted V-shaped collecting groove 6 and the trapezoidal diversion cap 5 from bottom to top, and spray cooling water above the trapezoidal diversion cap 5 cannot pass through freely and is collected to the annular collecting groove 7 by the inverted V-shaped collecting groove 6. The trapezoidal diversion cap 5 is connected with the inverted V-shaped collecting groove 6 through a metal connecting rod 22; the inverted V-shaped collecting groove 6 and the annular collecting groove 7 are horizontally arranged in the tower through a horizontal steel frame supporting rod 23.
According to the invention, the flue gas after desulfurization is cooled by adopting the independent circulating spray device in the desulfurization tower, and the saturated flue gas temperature is continuously reduced by spraying cooling water to form new condensate water, so that the moisture in the flue gas is reduced, and the phenomenon of white smoke plume of a chimney is eliminated; simultaneously, the desulfurization device is improved in the capability of removing sulfur dioxide through the circulating spraying system and the matched dosing device. Under the synergistic action of spraying/condensation, pollutants such as sulfur dioxide, dust, soluble salt, sulfur trioxide, sulfuric acid mist and the like in the flue gas are effectively removed.
The former flue gas of boiler gets into desulfurization system after, circulates through desulfurization slurry circulating pump 2 and sprays, and the flue gas sprays layer 1 back through the desulfurization slurry, has carried a large amount of liquid drops, and when the flue gas passed through defroster 3, most liquid drops in the flue gas were got rid of through the effect of collecting additional of defroster 3. After the flue gas passes through demister 3, spray layer 4 with independent circulation spray set's circulation and carry out the heat transfer, cool down the condensation through spray water, partial moisture in the flue gas condenses, collects by "lambda" type collecting vat 6 and annular collection groove 7 with spray water jointly. Because the flue gas that passes through defroster 3 still carries partial liquid drop, so, carry out the complement once more to pollutants such as dust, soluble salt, sulfur trioxide and sulfuric acid mist that contain in the flue gas through independent circulation spray set.
After condensed water of circulating spray water and flue gas falls into an inverted V-shaped collecting tank 6 through a trapezoidal diversion cap 5, collected liquid flows towards two ends of a tank body and flows into an annular collecting tank 7, the water collected in the annular collecting tank 7 flows into an L-shaped water collecting tank 9 from an A side 10 of a water inlet end of the L-shaped water collecting tank through a sewer pipe opening 8 of a water collecting device, a water outlet is arranged at the lower part of a B side 11 of a water outlet end of the L-shaped water collecting tank, the L-shaped water collecting tank 9 is designed into a middle upper part slender type and a lower part thick and short type water storage device, the upper part can improve the liquid level and save the output of a pump, a hopper-shaped collecting bowl 12 is arranged at the lower part of the A side 10 of the water inlet end of the L-shaped water collecting tank and can play a role in precipitating for solid-containing liquid, a drain outlet 14 of the L-shaped water collecting bowl 12 is arranged at the bottom, and the spray water needs to be added with chemicals in the L-shaped water collecting, the upper part of the B side 11 of the water outlet end of the L-shaped water collecting tank is connected with a dosing tank 19, a dosing port 21 is reserved above the dosing tank 19, and the prepared dosing liquid is conveyed to the B side 11 of the water outlet end of the L-shaped water collecting tank through a dosing tank conveying pump 20. The treated water enters the plate heat exchanger 15 through the water outlet for heat exchange, the circulating cooling water outside the system enters from the circulating water inlet 16 for spray water cooling, flows out from the circulating water outlet 17 for spray water cooling, and is subjected to circulating heat exchange cooling through the heat pump, and the cooled circulating spray water enters the circulating spray device again through the spray circulating pump 18 for spraying.
For more efficient collection shower water, trapezoidal water conservancy diversion cap 5 among the circulation spray set adopts trapezoidal shape (as shown in fig. 2, trapezoidal water conservancy diversion cap includes that upper surface and both sides lean out the water conservancy diversion surface, and the upper surface is trapezoidal with water conservancy diversion cap is whole), the diffusion and the water conservancy diversion of the spray cooling water of being convenient for, trapezoidal water conservancy diversion cap 5 passes through metal connecting rod 22 with "lambda" type collecting vat 6 to be connected simultaneously, can make "lambda" type collecting vat 6 high-efficiently collect shower water and comdenstion water.
Optionally, the reverse V-shaped collecting groove 6 is internally designed in a reverse V-shaped mode, the inclination angles of two ends of the reverse V-shaped collecting groove and the horizontal plane are about 5 degrees, the annular collecting groove 7 is designed in an annular mode and is positioned under the collecting groove 6, meanwhile, the bottom surface of the annular collecting groove 7 is designed to be inclined outwards and downwards, the inclination angle of the bottom surface and the horizontal plane is about 5 degrees, and water can be conveniently supplemented by the reverse V-shaped collecting groove 6 and the annular collecting groove 7.
In the optional step of the embodiment, the L-shaped water collecting tank 9 is arranged in an L shape and is built on a platform with a certain height (the height can be positioned at the middle height position of the desulfurizing tower), and the middle upper part adopts a slender structure, so that the output of the spraying circulating pump 18 is saved, and the energy consumption is reduced; a bucket-shaped collecting bowl 12 is arranged below the slender structure, so that solid-containing liquid can be conveniently collected; and a mud baffle 13 is arranged to prevent the solid-containing liquid from leaking, as shown in figure 4.
Claims (12)
1. The integrated device for deep desulfurization effect improvement and flue gas condensation is characterized by comprising an independent circulating spraying device; the independent circulating spray device comprises a circulating spray layer, a diversion cap layer and a spray water collecting layer which are sequentially arranged in the desulfurization tower from top to bottom; the circulating spraying layer, the trapezoidal diversion cap layer and the spraying water collecting layer are all positioned in the desulfurizing tower and above the demister; the circulating spraying layer comprises a plurality of nozzles which are centrosymmetric and are arranged in a plane; the flow guide cap layer comprises a plurality of trapezoidal flow guide caps, each trapezoidal flow guide cap corresponds to the nozzle of the circulating spray layer one by one, and the trapezoidal flow guide caps are positioned right below the corresponding nozzles; the spray water collection layer is positioned under the trapezoidal diversion cap, and a channel for smoke to flow is arranged at the spray water collection layer; the independent circulation spray device also comprises a spray water cooling circulation device arranged outside the desulfurization tower, spray water sprayed out of the nozzles of the circulation spray layer returns to the nozzles again through the trapezoidal diversion caps, the spray water collection layer and the spray water cooling circulation device in sequence, and spray water circulation is formed.
2. The integrated desulfurization depth effect-enhancing and flue gas condensation device according to claim 1, wherein the spray water collection layer comprises a plurality of collection grooves and annular collection grooves; the annular collecting groove is annular and is fixedly arranged in the desulfurizing tower along the inner wall of the desulfurizing tower in a circle; the collecting tanks are in an inverted V shape and are distributed in the same horizontal section of the desulfurization tower in parallel, and two ends of each collecting tank are positioned right above the annular collecting tank or directly connected with the annular collecting tank; the gaps between adjacent collecting grooves form the channel for the circulation of the flue gas.
3. The integrated desulfurization depth effect-improving and flue gas condensation device according to claim 2, wherein the collecting tank is fixedly arranged in the desulfurization tower through a horizontal steel frame supporting rod; the flow guide cap is connected with the collecting tank through a metal connecting rod and is fixedly arranged in the desulfurizing tower.
4. The integrated desulfurization depth efficiency-enhancing and flue gas condensation device as claimed in claim 3, wherein the angle between the two ends of the reverse V-shaped collecting groove and the horizontal plane is 5 ° ± 1 °.
5. The integrated desulfurization depth upgrading and flue gas condensation device of claim 4, wherein the total area of the gaps between the collecting tanks is greater than 50% of the horizontal cross-sectional area of the desulfurization tower in which the collecting tanks are located.
6. The integrated desulfurization depth effect-enhancing and flue gas condensation device according to claim 5, wherein the coverage area of the nozzles of the circulating spray layer is between 30% and 35%.
7. The integrated desulfurization depth effect-enhancing and flue gas condensation device according to any one of claims 1 to 6, wherein the spray water cooling circulation device comprises a water collection tank, a spray circulation pump, a heat exchanger, a dosing tank and a dosing tank delivery pump; the spray water in the annular collecting groove sequentially passes through the water collecting tank, the spray circulating pump and the heat exchanger through the connecting pipeline and then enters the circulating spray layer; the dosing tank is connected with the water collecting tank through a dosing tank delivery pump.
8. The integrated desulfurization depth effect-enhancing and flue gas condensation device as claimed in claim 7, wherein the water collection tank is in an L shape with a slender middle upper part and a short lower part.
9. The integrated desulfurization depth effect-enhancing and flue gas condensation device of claim 8, wherein a hopper-shaped collection bowl is arranged at the bottom of the water collection tank and right below the water inlet end, and a drain outlet of the water collection tank is arranged at the bottom of the hopper-shaped collection bowl; and a mud blocking partition plate is arranged at the bottom of the water collecting tank at one side of the bucket type collecting bowl close to the spraying circulating pump.
10. The integrated desulfurization depth efficiency improvement and flue gas condensation device according to claim 9, wherein a plurality of hopper-shaped collection bowls are provided, and a drain outlet of a water collection tank is provided at the bottom of each hopper-shaped collection bowl.
11. The integrated desulfurization depth effect-enhancing and flue gas condensation device according to claim 7, wherein a dosing port is arranged above the dosing tank.
12. The integrated desulfurization depth efficiency-improving and flue gas condensation device according to claim 7, wherein the bottom of the water collecting tank is connected with a spraying circulating pump, and the top of the water collecting tank is connected with a dosing tank delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160087.9A CN112774426A (en) | 2021-02-05 | 2021-02-05 | Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160087.9A CN112774426A (en) | 2021-02-05 | 2021-02-05 | Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device |
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| CN112774426A true CN112774426A (en) | 2021-05-11 |
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| CN202110160087.9A Pending CN112774426A (en) | 2021-02-05 | 2021-02-05 | Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558439A (en) * | 2022-03-04 | 2022-05-31 | 江苏富功环境工程科技有限公司 | Novel semi-dry method tumbling bed layer desulfurization device and method |
| CN114797434A (en) * | 2022-04-22 | 2022-07-29 | 山西漳山发电有限责任公司 | Device and method for deep emission reduction and waste heat utilization of secondary spraying in desulfurizing tower and water collection of flue gas |
-
2021
- 2021-02-05 CN CN202110160087.9A patent/CN112774426A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558439A (en) * | 2022-03-04 | 2022-05-31 | 江苏富功环境工程科技有限公司 | Novel semi-dry method tumbling bed layer desulfurization device and method |
| CN114797434A (en) * | 2022-04-22 | 2022-07-29 | 山西漳山发电有限责任公司 | Device and method for deep emission reduction and waste heat utilization of secondary spraying in desulfurizing tower and water collection of flue gas |
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