CN212262817U - Flue gas sprays absorbing device - Google Patents
Flue gas sprays absorbing device Download PDFInfo
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- CN212262817U CN212262817U CN202020680992.8U CN202020680992U CN212262817U CN 212262817 U CN212262817 U CN 212262817U CN 202020680992 U CN202020680992 U CN 202020680992U CN 212262817 U CN212262817 U CN 212262817U
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Abstract
The utility model provides a flue gas spraying and absorbing device, which comprises an absorbing horizontal pipe and an absorbing vertical pipe, wherein the bottom end of the absorbing vertical pipe is connected with one end of the absorbing horizontal pipe; the other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet, a spraying transverse pipe is arranged in the pipe cavity, and one side of the spraying transverse pipe, which is close to the flue gas inlet, is provided with a conical flow distribution plate; the top end of the absorption vertical pipe is provided with a purified gas outlet, and a spray vertical pipe is arranged in the pipe cavity; a demisting device is arranged between the spray vertical pipe and the purified gas outlet; the bottom of the absorption transverse pipe is connected with an absorption liquid storage cavity, and the absorption liquid in the absorption liquid storage cavity is connected with the bottom of the spray vertical pipe and one side of the spray transverse pipe far away from the flue gas inlet through a conveying device. The absorption device is simple in structure, and the contact space between the spraying liquid and the flue gas is reasonably distributed, so that the mixing effect of the spraying liquid and the flue gas is improved, and the using amount of the spraying liquid is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, a flue gas absorbing device is related to, especially, relate to a flue gas sprays absorbing device.
Background
SO present in flue gases2And pollutants such as nitrogen oxides can cause serious pollution to the atmosphere. Current desulfurization includes acid, subtractive, limestone-gypsum wet, double-base, ammonia, and metal oxide processes; the main denitration methods comprise a selective catalytic reduction method (SCR) and a selective non-catalytic reduction method (SNCR), wherein the SCR method can realize higher denitration efficiency and meet the flue gas emission standard, but the process and equipment system are complex, a special catalyst is needed, and the investment and operation cost of the whole system is higher; although the SNCR method has simple process and equipment system and lower investment and operation cost, the denitration efficiency is not high.
The method for removing the pollutants by using the synergy of ozone oxidation and multiple pollutants can realize the removal of the pollutants at a lower temperature. The denitration by the ozone oxidation method mainly utilizes the strong oxidizing property of ozone to oxidize insoluble low-valence nitrogen oxides into soluble high-valence nitrogen oxides, and then the nitrogen oxides are absorbed in a washing tower to achieve the purpose of removal. The absorption efficiency of the washing tower influences the consumption of the washing liquid and the cost of subsequent treatment, so that the washing tower with a reasonable structure is provided, and the cost of flue gas treatment is favorably reduced.
CN 207745682U discloses a dynamic wave spraying device for flue gas absorption, which comprises an absorption tower, wherein a flue gas inlet pipe is arranged on the side surface of the absorption tower; the flue gas inlet pipe extends into the absorption tower and extends to the bottom of the absorption tower; a power wave generator for spraying flue gas absorption liquid is arranged below the flue gas inlet pipe; a spraying mechanism for spraying flue gas absorption liquid towards the flue gas flowing from the bottom of the absorption tower to the top of the absorption tower is arranged between the appearance ratio of the flue gas inlet pipe and the inner wall of the absorption tower; the top of the absorption tower is provided with a flue gas outlet, and the dynamic wave spraying device for flue gas absorption enables flue gas and absorption liquid to be mixed through multiple countercurrent, so that the treatment efficiency of the flue gas is improved. However, the investment of the power wave generator is large, and the structure of the spraying device is complex, so that the later use and maintenance are not facilitated.
CN 208809778U discloses a flue gas two-stage desulfurization clean system, including treatment column, absorption liquid spray column, coolant liquid spray thrower, tightening means and defroster. The treatment tower is internally provided with an inner cavity, a flue gas inlet and a flue gas outlet which are communicated with the inner cavity. The absorption liquid sprayer, the tightening device, the cooling liquid sprayer and the demister are sequentially arranged in an inner cavity of the treatment tower from bottom to top, the flue gas inlet is arranged below the absorption liquid sprayer, the flue gas outlet is arranged above the demister, and the collecting device comprises a tightening wall and an exhaust wall; the bottom end of the tightening wall is fixed on the tower wall of the treatment tower and encloses a lower flue, and the diameter of the lower flue is gradually reduced from bottom to top; the exhaust wall is fixed to the top end of the tightening wall and has a flue gas flow to. The two-stage flue gas desulfurization and purification system realizes the absorption of nitric oxide and oxysulfide in flue gas through the cooperation of the absorption liquid sprayer and the tightening device, but has the defect of large absorption liquid consumption.
CN 206897123U discloses a multistage flue gas desulfurization denitration sprays absorbing device, multistage flue gas desulfurization denitration sprays absorbing device includes that the first purification chamber that sprays, the second sprays and purifies the chamber, first collection liquid case, the second collects liquid case, the flue gas distributor, spray the liquid collecting pit, the defroster, flue gas entry, purify the gas outlet, first income liquid mouth, the second is gone into the liquid mouth, the third is gone into the liquid mouth, the fourth is gone into the liquid mouth, first catheter, the second catheter, first coil pipe, the second coil pipe, the third coil pipe, the fourth coil pipe, the nozzle, spray liquid collecting pit liquid outlet. According to the multistage flue gas desulfurization and denitrification spray absorption device, the contact area of an absorbent and flue gas is increased by designing two spray purification cavities and arranging the coil pipes at the positions of the spray purification cavities and the positions opposite to the direction of the flue gas; the filter screen is arranged below the flue gas inlet, so that the flue gas can be dispersed, and the absorbent in the spraying and purifying cavity can be fully contacted with the flue gas. However, the multistage flue gas desulfurization and denitration spray absorption device has large volume, needs to occupy large space, and is not beneficial to field arrangement and use.
Therefore, in order to reduce the cost of flue gas desulfurization and denitration and reduce the amount of spraying liquid used in flue gas absorption, it is important to provide a flue gas spraying and absorbing device with a simple structure and high efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a flue gas spraying and absorbing device which has a simple structure, improves the mixing effect of the spraying liquid and the flue gas by reasonably distributing the contact space of the spraying liquid and the flue gas, thereby reducing the usage amount of the spraying liquid; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a flue gas sprays absorbing device, flue gas absorbs spraying device violently manages and absorbs the standpipe including absorbing, and the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet; a spraying transverse pipe is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate is arranged on one side of the spraying transverse pipe close to the smoke inlet.
The top end of the absorption vertical pipe is provided with a purified gas outlet; a spray vertical pipe is arranged in the pipe cavity of the absorption vertical pipe; a demisting device is arranged between the spray vertical pipe and the purified gas outlet.
The bottom of the horizontal absorption pipe is connected with an absorption liquid storage cavity, and absorption liquid in the absorption liquid storage cavity is respectively and independently connected with the bottom of the vertical spraying pipe and one side of the horizontal spraying pipe, which is far away from the flue gas inlet, through a conveying device.
Use the utility model provides a flue gas sprays absorbing device when spraying the absorption to the flue gas, the flue gas gets into by the flue gas entry and absorbs violently the pipe, flows into to spray violently all around of managing under the reposition of redundant personnel effect of toper flow distribution plate to make the flue gas and violently manage spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe, so that deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet after being subjected to demisting treatment by a demisting device.
The size of absorption liquid storage cavity and with the hookup location of absorption violently pipe do not specifically prescribe a limit to, the technical personnel in the field can carry out reasonable setting according to the absorption liquid quantity.
Preferably, the flue gas inlet is connected with the absorption transverse pipe through a reducing pipe.
The utility model provides a flue gas sprays among the absorbing device, the pipe diameter of flue gas entry is less, and absorbs the pipe diameter of violently managing great, through the reducing with the flue gas entry with absorb horizontal union coupling, can make the flue gas in absorbing horizontal intraductal evenly distributed to with spray under the mating reaction of toper flow distribution plate and violently manage spun absorption liquid evenly contact.
Preferably, the lower side wall of the absorption transverse tube is obliquely arranged to enable the absorption liquid to flow back to the absorption liquid storage cavity.
The utility model discloses a lower lateral wall that violently manages will absorb slopes, makes the absorption liquid that sprays out flow back to absorption liquid under the action of gravity and stores up the chamber. When the inclination angle is smaller, the absorption liquid has the defect of easy scaling and the defect of unsmooth backflow of the absorption liquid; when the inclination angle is set to be larger, the size and the cost of the absorption transverse pipe can be increased, and the reduction of the production cost of the spraying absorption device is not facilitated.
Preferably, the connection part of the horizontal absorption pipe and the vertical absorption pipe is in a chamfer structure or a fillet structure.
The utility model sets the connection part of the absorption horizontal pipe and the absorption vertical pipe into a chamfer structure or a fillet structure, so that the absorption liquid flowing down from the absorption vertical pipe can flow back into the absorption liquid storage cavity more quickly; simultaneously, the impact of flue gas to the inner wall of the absorption device can be alleviated by the arrangement of the chamfering structure and the fillet structure, and the service life of the flue gas spraying absorption device is prolonged.
Preferably, the central axes of the reducing pipe, the flue gas inlet, the spraying transverse pipe and the conical flow distribution plate are coincident.
Preferably, the central axes of the demister, spray stack and purge gas outlet coincide.
Preferably, the horizontal spray pipe is provided with 4-10 layers of nozzles along the axial direction of the horizontal spray pipe, and each layer of nozzles comprises 3-6 nozzles uniformly arranged along the radial direction of the horizontal spray pipe.
The spray transverse pipe is characterized in that 4-10 layers of nozzles are uniformly arranged along the axial direction of the spray transverse pipe, 4-10 layers of nozzles are uniformly arranged, the adjacent two layers of nozzles are uniformly arranged at equal intervals, and the distance between the adjacent two layers of nozzles can be reasonably set by a person skilled in the art according to the length of the spray transverse pipe.
The 3-6 nozzles of each layer of nozzles are uniformly arranged, namely, when the number of the nozzles is 3, the included angle of the adjacent 2 nozzles is 120 degrees; when the number of the nozzles is 4, the included angle of the adjacent 2 nozzles is 90 degrees; when 5 nozzles are adopted, the included angle of every two adjacent nozzles is 72 degrees; in the case of 6 nozzles, the angle between the adjacent 2 nozzles is 60 °.
The number of the nozzle layers of the transverse spraying pipe in the axial direction is 4-10, for example, 4, 5, 6, 7, 8, 9 or 10 layers; the number of nozzles included in each layer of nozzles is 3-6, and may be, for example, 3, 4, 5, or 6.
Preferably, the spray vertical pipe is provided with 4-10 layers of nozzles along the axial direction of the spray vertical pipe, and each layer of nozzles comprises 3-6 nozzles uniformly arranged along the radial direction of the spray vertical pipe.
The spray riser is characterized in that 4-10 layers of nozzles are uniformly arranged along the axial direction of the spray riser, the nozzles are uniformly arranged at 4-10 layers, the nozzles are uniformly arranged at equal intervals between two adjacent layers of nozzles, and the distance between two adjacent layers of nozzles can be reasonably set by a person skilled in the art according to the length of the spray riser.
The 3-6 nozzles of each layer of nozzles are uniformly arranged, namely, when the number of the nozzles is 3, the included angle of the adjacent 2 nozzles is 120 degrees; when the number of the nozzles is 4, the included angle of the adjacent 2 nozzles is 90 degrees; when 5 nozzles are adopted, the included angle of every two adjacent nozzles is 72 degrees; in the case of 6 nozzles, the angle between the adjacent 2 nozzles is 60 °.
The number of the spray nozzles of the vertical spray pipe in the axial direction is 4-10, for example, 4, 5, 6, 7, 8, 9 or 10 layers; the number of nozzles included in each layer of nozzles is 3-6, and may be, for example, 3, 4, 5, or 6.
Preferably, the delivery device is a pump.
Compared with the prior art, the beneficial effects of the utility model are that:
the flue gas spraying and absorbing device provided by the utility model has a simple structure, improves the mixing effect of the spraying liquid and the flue gas by reasonably distributing the contact space of the spraying liquid and the flue gas, thereby reducing the usage amount of the spraying liquid; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
Drawings
Fig. 1 is a schematic structural view of a flue gas spraying and absorbing device provided by the present invention;
fig. 2 is a schematic structural view of a flue gas spray absorption device provided in embodiment 4;
fig. 3 is a schematic structural diagram of a flue gas spray absorption device provided in embodiment 5.
Wherein: 1, a flue gas inlet; 2, reducing; 3, spraying a horizontal pipe; 4, spraying a vertical pipe; 5, a nozzle; 6, a purified gas outlet; 7, a demisting device; 8, an absorption liquid storage cavity; and 9, a conical splitter plate.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As the utility model provides a flue gas sprays absorbing device's preferred technical scheme, flue gas sprays absorbing device's schematic structure is shown in fig. 1, violently manage and absorb the standpipe including the absorption, the bottom of absorbing the standpipe is connected with the one end that absorbs violently the pipe.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demisting device 7 is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the bottom of the horizontal absorption pipe is connected with an absorption liquid storage cavity 8, and absorption liquid in the absorption liquid storage cavity 8 is respectively and independently connected with the bottom of the vertical spraying pipe 4 and one side of the horizontal spraying pipe 3, which is far away from the flue gas inlet 1, through a pump.
The central axes of the reducing 2, the flue gas inlet 1, the horizontal spraying pipe 3 and the conical splitter plate 9 are superposed; the central axes of the demisting device 7, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 4-10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3-6 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3. The vertical spray pipes 4 are uniformly provided with 4-10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3-6 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipes 4.
As a further preferable technical scheme, the connection position of the horizontal absorption pipe and the vertical absorption pipe is a chamfer structure or a fillet structure.
Use the utility model provides a flue gas sprays absorbing device when spraying the absorption to the flue gas, the flue gas is entered into by flue gas entry 1 and is absorbed violently the pipe, flows into to spray and violently manages 3 all around at toper flow distribution plate 9's reposition of redundant personnel effect to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
Example 1
The embodiment provides a flue gas sprays absorbing device, violently manage and absorb the standpipe including absorbing, the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demister is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the bottom of the horizontal absorption pipe is connected with an absorption liquid storage cavity 8, and absorption liquid in the absorption liquid storage cavity 8 is respectively and independently connected with the bottom of the vertical spraying pipe 4 and one side of the horizontal spraying pipe 3, which is far away from the flue gas inlet 1, through a pump.
The central axes of the flue gas inlet 1, the horizontal spray pipe 3 and the conical flow distribution plate 9 are superposed; the central axes of the demister, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 7 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 5 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3; the vertical spray pipes 4 are provided with 7 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 5 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipes 4.
When the flue gas that uses this embodiment to provide sprays absorbing device sprays the absorption to the flue gas, the flue gas is crossed the absorption by flue gas entry 1 entering, flows into all around that spray violently manage 3 at the reposition of redundant personnel effect of toper flow distribution plate 9 to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
The flue gas spraying and absorbing device is simple in structure, the contact space between the spraying liquid and the flue gas is reasonably distributed, the mixing effect of the spraying liquid and the flue gas is improved, the using amount of the spraying liquid is reduced, and the spraying treatment cost is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
Example 2
The embodiment provides a flue gas sprays absorbing device, violently manage and absorb the standpipe including absorbing, the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demister is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the bottom of the horizontal absorption pipe is connected with an absorption liquid storage cavity 8, and absorption liquid in the absorption liquid storage cavity 8 is respectively and independently connected with the bottom of the vertical spraying pipe 4 and one side of the horizontal spraying pipe 3, which is far away from the flue gas inlet 1, through a pump.
The flue gas inlet 1 is connected with the absorption transverse pipe through a reducing pipe 2, and the central axes of the reducing pipe 2, the flue gas inlet 1, the spraying transverse pipe 3 and the conical flow distribution plate 9 are overlapped; the central axes of the demister, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 4 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3; the vertical spray pipe 4 is provided with 10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 6 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipe 4.
When the flue gas that uses this embodiment to provide sprays absorbing device sprays the absorption to the flue gas, the flue gas is crossed the absorption by flue gas entry 1 entering, flows into all around that spray violently manage 3 at the reposition of redundant personnel effect of toper flow distribution plate 9 to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
The flue gas spraying and absorbing device is simple in structure, the contact space between the spraying liquid and the flue gas is reasonably distributed, the mixing effect of the spraying liquid and the flue gas is improved, the using amount of the spraying liquid is reduced, and the spraying treatment cost is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
Example 3
The embodiment provides a flue gas sprays absorbing device, violently manage and absorb the standpipe including absorbing, the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demister is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the absorption is violently managed the bottom and is connected with absorption liquid and stores up chamber 8, and the absorption liquid in absorption liquid storage chamber 8 passes through the pump respectively independently with the bottom that sprays standpipe 4 and spray violently manage 3 and keep away from one side of flue gas entry 1 and be connected, the lower lateral wall slope setting that absorbs violently the pipe makes the absorption liquid flow back to absorption liquid and stores up chamber 8.
The flue gas inlet 1 is connected with the absorption transverse pipe through a reducing pipe 2, and the central axes of the reducing pipe 2, the flue gas inlet 1, the spraying transverse pipe 3 and the conical flow distribution plate 9 are overlapped; the central axes of the demister, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3; the vertical spray pipe 4 is provided with 3 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 6 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipe 4.
When the flue gas that uses this embodiment to provide sprays absorbing device sprays the absorption to the flue gas, the flue gas is crossed the absorption by flue gas entry 1 entering, flows into all around that spray violently manage 3 at the reposition of redundant personnel effect of toper flow distribution plate 9 to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
The flue gas spraying and absorbing device is simple in structure, the contact space between the spraying liquid and the flue gas is reasonably distributed, the mixing effect of the spraying liquid and the flue gas is improved, the using amount of the spraying liquid is reduced, and the spraying treatment cost is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized.
Example 4
The embodiment provides a flue gas sprays absorbing device, flue gas sprays absorbing device's structural schematic diagram is shown in fig. 2, violently manage and absorb the standpipe including absorbing, the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe, the junction that absorbs violently the pipe and absorb the standpipe is the chamfer structure.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demister is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the absorption is violently managed the bottom and is connected with absorption liquid and stores up chamber 8, and the absorption liquid in absorption liquid storage chamber 8 passes through the pump respectively independently with the bottom that sprays standpipe 4 and spray violently manage 3 and keep away from one side of flue gas entry 1 and be connected, the lower lateral wall slope setting that absorbs violently the pipe makes the absorption liquid flow back to absorption liquid and stores up chamber 8.
The flue gas inlet 1 is connected with the absorption transverse pipe through a reducing pipe 2, and the central axes of the reducing pipe 2, the flue gas inlet 1, the spraying transverse pipe 3 and the conical flow distribution plate 9 are overlapped; the central axes of the demister, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3; the vertical spray pipe 4 is provided with 3 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 6 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipe 4.
When the flue gas that uses this embodiment to provide sprays absorbing device sprays the absorption to the flue gas, the flue gas is crossed the absorption by flue gas entry 1 entering, flows into all around that spray violently manage 3 at the reposition of redundant personnel effect of toper flow distribution plate 9 to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
The flue gas spraying and absorbing device is simple in structure, the contact space between the spraying liquid and the flue gas is reasonably distributed, the mixing effect of the spraying liquid and the flue gas is improved, the using amount of the spraying liquid is reduced, and the spraying treatment cost is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized. The arrangement of the chamfer structure can enable the absorption liquid flowing down from the absorption vertical pipe to flow back to the absorption liquid storage cavity more quickly; simultaneously, the impact of flue gas to the inner wall of the absorption device can be alleviated by the arrangement of the chamfering structure and the fillet structure, and the service life of the flue gas spraying absorption device is prolonged.
Example 5
The embodiment provides a flue gas sprays absorbing device, flue gas sprays absorbing device's structural schematic diagram is shown in fig. 3, violently manages and absorbs the standpipe including absorbing, and the bottom of absorption standpipe is connected with the one end that absorbs violently the pipe, the junction that absorbs violently the pipe and absorb the standpipe is the fillet structure.
The other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet 1; a spray transverse pipe 3 is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate 9 is arranged on one side of the spray transverse pipe 3 close to the flue gas inlet 1; the top end of the absorption vertical pipe is provided with a purified gas outlet 6; a spray vertical pipe 4 is arranged in the pipe cavity of the absorption vertical pipe; a demister is arranged between the vertical spraying pipe 4 and the purified gas outlet 6; the absorption is violently managed the bottom and is connected with absorption liquid and stores up chamber 8, and the absorption liquid in absorption liquid storage chamber 8 passes through the pump respectively independently with the bottom that sprays standpipe 4 and spray violently manage 3 and keep away from one side of flue gas entry 1 and be connected, the lower lateral wall slope setting that absorbs violently the pipe makes the absorption liquid flow back to absorption liquid and stores up chamber 8.
The flue gas inlet 1 is connected with the absorption transverse pipe through a reducing pipe 2, and the central axes of the reducing pipe 2, the flue gas inlet 1, the spraying transverse pipe 3 and the conical flow distribution plate 9 are overlapped; the central axes of the demister, the spray stack 4 and the purified gas outlet 6 coincide.
The horizontal spray pipe 3 is uniformly provided with 10 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 3 nozzles 5 uniformly arranged along the radial direction of the horizontal spray pipe 3; the vertical spray pipe 4 is provided with 3 layers of nozzles 5 along the axial direction, and each layer of nozzles 5 comprises 6 nozzles 5 uniformly arranged along the radial direction of the vertical spray pipe 4.
When the flue gas that uses this embodiment to provide sprays absorbing device sprays the absorption to the flue gas, the flue gas is crossed the absorption by flue gas entry 1 entering, flows into all around that spray violently manage 3 at the reposition of redundant personnel effect of toper flow distribution plate 9 to make the flue gas and violently manage 3 spun absorption liquid even contact by spraying, accomplish the preliminary absorption of absorption liquid and flue gas.
The temperature of the flue gas after primary absorption is reduced, the flue gas flowing into the absorption vertical pipe flows from bottom to top and is in countercurrent contact with the absorption liquid sprayed by the spray vertical pipe 4, so that the deep absorption of the absorption liquid and the flue gas is completed, and the absorption effect of nitric oxide and oxysulfide in the flue gas is improved. The purified flue gas flows out from a purified gas outlet 6 after being subjected to demisting treatment by a demisting device 7.
The flue gas spraying and absorbing device is simple in structure, the contact space between the spraying liquid and the flue gas is reasonably distributed, the mixing effect of the spraying liquid and the flue gas is improved, the using amount of the spraying liquid is reduced, and the spraying treatment cost is reduced; the purification and dehumidification effects on the flue gas are realized, and the clean emission of the flue gas is realized. The arrangement of the fillet structure can enable the absorption liquid flowing down from the absorption vertical pipe to flow back to the absorption liquid storage cavity more quickly; simultaneously, the impact of flue gas to the inner wall of the absorption device can be alleviated by the arrangement of the fillet structure and the fillet structure, and the service life of the flue gas spraying absorption device is prolonged.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (9)
1. The flue gas spraying and absorbing device is characterized by comprising a horizontal absorbing pipe and a vertical absorbing pipe, wherein the bottom end of the vertical absorbing pipe is connected with one end of the horizontal absorbing pipe;
the other end of the absorption transverse pipe, which is opposite to the other end connected with the absorption vertical pipe, is provided with a flue gas inlet; a spraying transverse pipe is arranged in the pipe cavity of the absorption transverse pipe, and a conical flow distribution plate is arranged on one side of the spraying transverse pipe close to the flue gas inlet;
the top end of the absorption vertical pipe is provided with a purified gas outlet; a spray vertical pipe is arranged in the pipe cavity of the absorption vertical pipe; a demisting device is arranged between the spray vertical pipe and the purified gas outlet;
the bottom of the horizontal absorption pipe is connected with an absorption liquid storage cavity, and absorption liquid in the absorption liquid storage cavity is respectively and independently connected with the bottom of the vertical spraying pipe and one side of the horizontal spraying pipe, which is far away from the flue gas inlet, through a conveying device.
2. The flue gas spray absorption device of claim 1 wherein the flue gas inlet is connected to the absorption cross pipe by a variable diameter.
3. The flue gas spray absorption device of claim 1, wherein the lower side wall of the absorption transverse pipe is obliquely arranged to enable absorption liquid to flow back to the absorption liquid storage cavity.
4. The flue gas spray absorption device of claim 1 or 3, wherein the connection between the horizontal absorption pipe and the vertical absorption pipe is a chamfer structure or a fillet structure.
5. The flue gas spray absorption device of claim 2 wherein the central axes of the reducing ports, the flue gas inlet, the spray cross tube and the conical splitter plate coincide.
6. The flue gas spray absorber of claim 5 wherein the central axes of the demister, spray standpipe, and purge gas outlet coincide.
7. The flue gas spray absorption device of claim 1, wherein the horizontal spray pipe is provided with 4-10 layers of nozzles along the axial direction thereof, and each layer of nozzles comprises 3-6 nozzles uniformly arranged along the radial direction of the horizontal spray pipe.
8. The flue gas spray absorption device according to claim 1 or 7, wherein the spray stack is provided with 4-10 layers of nozzles along the axial direction thereof, and each layer of nozzles comprises 3-6 nozzles uniformly arranged along the radial direction of the spray stack.
9. The flue gas spray absorption device of claim 1 wherein the transport device is a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680992.8U CN212262817U (en) | 2020-04-27 | 2020-04-27 | Flue gas sprays absorbing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680992.8U CN212262817U (en) | 2020-04-27 | 2020-04-27 | Flue gas sprays absorbing device |
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| CN212262817U true CN212262817U (en) | 2021-01-01 |
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| CN202020680992.8U Active CN212262817U (en) | 2020-04-27 | 2020-04-27 | Flue gas sprays absorbing device |
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| CN (1) | CN212262817U (en) |
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