CN203944287U - Desulfuration absorbing tower - Google Patents
Desulfuration absorbing tower Download PDFInfo
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- CN203944287U CN203944287U CN201420396713.XU CN201420396713U CN203944287U CN 203944287 U CN203944287 U CN 203944287U CN 201420396713 U CN201420396713 U CN 201420396713U CN 203944287 U CN203944287 U CN 203944287U
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- tower body
- flue gas
- deflector
- tower
- desulfuration absorbing
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Abstract
The utility model relates to a kind of desulfuration absorbing tower, comprises tower body, is arranged on spraying layer in tower body, is arranged on and in tower body, is positioned at spraying layer side and tower body is separated into the flue gas dividing plate in flue gas rising area and flue gas decline district; Tower body is offered respectively gas approach and exhanst gas outlet over against the both sides of flue gas dividing plate; This desulfuration absorbing tower also comprises: be distributed in the deflector on tower body inwall, deflector starts to distribute from one end of flue gas dividing plate and the junction of tower body inwall, terminate in the junction of the other end and the tower body inwall of flue gas dividing plate, the end of every group of deflector is connected with tower body inwall, and the middle part of tower body is pointed in the tail down of every group of deflector.Compared with the existing technology, when former flue gas is in uphill process, the former flue gas that is positioned at tower body periphery of inner wall can be organized the middle part that deflector is guided to tower body by each, to fully react and carry out desulfurization with the vaporific lime stone slurry of spraying layer ejection, thereby avoid former flue gas to escape from the reaction vacuum area of tower body inwall.
Description
Technical field
The utility model relates to a kind of absorption tower, specifically a kind of wet flue gas desulfurization absorption tower for coal-burning power plant.
Background technology
Some power plant desulfurization absorption tower adopts adverse current spray tower at present.Flue gas is entered behind absorption tower by the gas approach of adsorption tower smoke dividing plate one side, the vaporific lime stone slurry counter current contacting spraying with the pressurization of absorption tower spraying layer nozzle in uphill process, flue gas after reaction desulfuration, under absorbing tower is knocked over and turned to, is finally discharged from being positioned at the exhanst gas outlet of adsorption tower smoke dividing plate opposite side.
Due to structure and the form on absorption tower, in existing absorption tower, generally can be furnished with three groups of upper, middle and lower spraying layer, every layer of spraying layer is comprised of mother's pipe, arm and nozzle, and respectively organizes between the female pipe of spraying layer and be communicated with by arm.In addition, in existing absorption tower, spraying layer nozzle generally all adopts spiral nozzle, and the spray angle of its nozzle is about 120 degree.Lime stone slurry by with nozzle on after the tangent and collision of the helicoid that diminishes continuously, thereby becoming small liquid pearl ejection forms vaporific, vaporific slurries form cross spray the former flue gas rising in whole absorption tower are covered from the ejection downwards of three layers of spraying layer, so that former flue gas is carried out to countercurrent spray desulphurization reaction.
But the impact due to the structure on absorption tower, the conversion zone of the former flue gas that the adsorption tower smoke dividing plate of take is boundary in uphill process is generally semicircular cross section, so cause the nozzle being arranged near absorbing tower wall part to only have half of nozzle operation, without cross spray effect, and spray slurry be sprayed onto gravity flow after tower wall and under, long-play can cause tower wall slurries bulk deposition, has compared larger deficiency with the atomizing effect of spray central area, absorption tower.Simultaneously, owing to spraying in tower, centre spray atomizing effect is better, with former flue gas cross-counterflow sufficient reacting, former flue gas washes away pressure in the sprayed slurry that is subject to of spray central area and washes away pressure much larger than the spray of tower wall location, cause former flue gas under the effect of pressure differential, from centre, to diffuse to absorbing tower wall region, after flue gas rises along tower wall, escape forms slurry reaction no-man's-land, and the effect that whole smoke reaction is removed to sulfur dioxide has considerable influence.
Utility model content
The purpose of this utility model is to provide a kind of desulfuration absorbing tower, to avoid desulfuration absorbing tower wall position because the limitation of arrangement of nozzles causes former flue gas to be escaped from tower wall reaction vacuum area, thereby affects the problem of desulfuration efficiency.
In order to address the above problem, embodiment of the present utility model has designed a kind of desulfuration absorbing tower, comprises tower body, is arranged in described tower body and covers three groups of the upper, middle and lower spraying layer of flue gas rising area; Also comprise to be arranged on and in described tower body, be positioned at three groups of described upper, middle and lower spraying layer side and described tower body be separated into the flue gas dividing plate in flue gas rising area and flue gas decline district; Described tower body is offered respectively gas approach and exhanst gas outlet over against the both sides of described flue gas dividing plate; It is characterized in that:
Described desulfuration absorbing tower also comprises: be distributed in the deflector on the tower body inwall of flue gas rising area one side, described deflector starts to distribute from one end and the described tower body inwall junction of described flue gas dividing plate, terminates in the junction of the other end and the described tower body inwall of described flue gas dividing plate;
And the end of every group of deflector is connected with described tower body inwall, and the middle part of described tower body is pointed in the tail down of every group of deflector.
Embodiment of the present utility model in terms of existing technologies, due to the circle deflector that distributed on the inwall of tower body, and the middle part of tower body is pointed in the tail down of every group of deflector, so when former flue gas is in uphill process, the former flue gas that is positioned at tower body periphery of inner wall can be organized deflector and be guided to tower body spray central area by each, it is gathered, to carry out desulfurization with the abundant cross reaction of vaporific lime stone slurry of spraying layer ejection.Thereby avoid former flue gas to escape from the reaction vacuum area of tower body inwall.And because the afterbody of deflector is the middle part of pointing to tower body downwards, show that deflector has certain angle of inclination, when system is in running, the lime stone slurry flowing down along tower body inwall can reflux to the middle part of tower body by this deflector, has solved the phenomenon that tower body inwall slurries are piled up.
Wherein, the inwall of every group of deflector and described tower body is the angle of downward 60 degree.Because the inwall of every group of deflector and tower body is the angle of downward 60 degree, by this kind of embodiment, can further guarantee when former flue gas is in uphill process, the former flue gas that is positioned at tower body periphery of inner wall can be guided to middle part, absorption tower by the water conservancy diversion angle of every group of deflector, it is gathered, fully with the lime stone slurry reaction desulfuration of spraying layer ejection.Can guarantee, the lime stone slurry flowing down along tower body inwall can reflux to the middle part of tower body by the water conservancy diversion angle of this deflector simultaneously, has further solved the phenomenon that tower body inwall slurries are piled up.
In addition, described deflector is alloy sheets, and the width of described deflector is 800 millimeters.Because deflector is alloy sheets, and the characteristic of alloy sheets be have that hardness is high, wear-resisting, intensity and a series of premium properties such as toughness is better, heat-resisting, corrosion-resistant, institute is so that deflector is when contacting with lime stone slurry with former flue gas, can, due to the impact of the high temperature in tower body and chemical substance, not cause deflector to produce distortion and corrosion.And because deflector has enough width, so can effectively whole tower body inwall fully be covered, further avoided the packing phenomenon of slurries.
And, between deflector and described tower body inwall, adopt argon arc welding to be fixed and be connected.Because the characteristic of argon arc welding is to protect in surrounding's covering inert gas argon of arc welding, air insulated, outside welding zone, is prevented to the oxidation of welding zone.Hence one can see that, by this kind of welding manner, can effectively avoid weld zone between the two to produce the possibility of oxidation, when guaranteeing deflector and tower body inwall connectivity robustness, and the security that has further improved whole system.
Further, in each spraying layer, comprise the female pipe of N group spray, for arm that the female pipe of each spray is connected successively be distributed in the nozzle on described arm; Wherein, described N is natural number; The position that respectively sprays female pipe in the spraying layer of three groups of described upper, middle and lower is corresponding one by one, and is not communicated with mutually.In addition, described nozzle is spiral nozzle, and the spray angle of nozzle is the obtuse angle of one approximately 120 degree.Hence one can see that, when lime stone slurry by with nozzle on after the tangent and collision of the helicoid that diminishes continuously, thereby becoming small liquid pearl ejection forms vaporific, vaporific slurries form cross spray the former flue gas rising in whole absorption tower are covered from spraying layer ejection downwards, thereby can carry out countercurrent spray desulphurization reaction with former flue gas better.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing desulfuration absorbing tower;
Fig. 2 is the structural representation of the desulfuration absorbing tower of the utility model the first embodiment.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each embodiment of the present utility model is at length set forth.Yet, persons of ordinary skill in the art may appreciate that in each embodiment of the utility model, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following embodiment and modification, also can realize each claim of the application technical scheme required for protection.
As shown in Figure 1, existing desulfuration absorbing tower is generally provided with three groups of upper, middle and lower spraying layer, every layer of spraying layer by mother manage 3, arm 1 and the nozzle 2 that is distributed on arm 1 form.Wherein, between the female pipe 3 of each group, by arm 1, be communicated with.And nozzle 2 is spiral nozzle, and the spray angle of nozzle is about 120 degree.
When lime stone slurry by with nozzle 2 on after the tangent and collision of the helicoid that diminishes continuously, thereby becoming small liquid pearl ejection forms vaporific, vaporific slurries form cross spray the flue gas rising area on whole absorption tower are covered from the ejection downwards of three layers of spraying layer, so that former flue gas is carried out to countercurrent spray desulphurization reaction.
But the impact due to absorption tower structure, the conversion zone of the flue gas that the adsorption tower smoke dividing plate 4 of take is boundary in uphill process is generally semicircular cross section, so cause the nozzle 2 being arranged near absorbing tower wall 5 parts to only have half of nozzle operation, without cross spray effect, and vaporific slurries be sprayed onto the rear gravity flow of tower wall 5 and under, long-play can cause tower wall slurries bulk deposition, has compared larger deficiency with the atomizing effect of central area, absorption tower.Simultaneously, owing to spraying in tower, central area spray atomizing effect is better, with former flue gas cross-counterflow sufficient reacting, former flue gas washes away pressure in the sprayed slurry that is subject to of spray central area and washes away pressure much larger than the spray of tower wall location, cause former flue gas under the effect of pressure differential, from centre, to diffuse to absorbing tower wall region, after former flue gas rises along tower wall, escape forms slurry reaction no-man's-land, and whole smoke reaction is removed to sulfur dioxide effect considerable influence.
The first embodiment of the present utility model relates to a kind of desulfuration absorbing tower, as shown in Figure 2, comprises tower body, also comprises the upper, middle and lower-ranking spraying layer that is arranged in tower body and covers flue gas rising area.
Wherein, every layer of spraying layer is to consist of the nozzle 8 that sprays female pipe 9, arm 7 and be distributed on arm 7.Wherein, between the female pipe 9 of each group spray on every layer of spraying layer, by arm 7, connect successively, and in the spraying layer of three groups of upper, middle and lower, the position of the female pipe 9 of spray is corresponding one by one, and is not communicated with mutually.In addition, in the present embodiment, nozzle 8 is spiral nozzle, and the spray angle of nozzle 8 is about 120 degree.
The desulfuration absorbing tower of present embodiment also comprises: be arranged on and in tower body, be positioned at spraying layer side and tower body be separated into the flue gas dividing plate 6 in flue gas rising area and flue gas decline district.Wherein, tower body is offered respectively gas approach and exhanst gas outlet over against the both sides of flue gas dividing plate 6.
Its working method is, when former flue gas enters in absorption tower from the gas approach of tower body, former flue gas carries out after desulphurization reaction with the lime stone slurry of each spraying layer ejection in the process rising, until rise to tower top the upset of tower body, discharges downwards from being positioned at the exhanst gas outlet of tower body opposite side.
In addition, the desulfuration absorbing tower of present embodiment also comprises: be distributed in the deflector 11 on the tower body inwall of flue gas rising area one side, and deflector 11 is to start to distribute from the junction of one end of flue gas dividing plate 6 and tower body inwall 10, terminates in the junction of the other end and the tower body inwall 10 of flue gas dividing plate 6.Wherein, the end of every group of deflector 11 is connected with the inwall of tower body 10, and the middle part of tower body is pointed in the tail down of every group of deflector 11.
In the present embodiment, due to the circle deflector 11 that distributed on the inwall 10 at tower body, and the afterbody of every group of deflector 11 is middle parts of pointing to tower body downwards, so when former flue gas is in uphill process, be positioned at tower body inwall 10 former flue gas around and can organize the spray central area that deflector 11 is guided to tower body by each, it is gathered, to carry out desulfurization with the abundant cross reaction of vaporific lime stone slurry of spraying layer ejection, thereby avoid former flue gas to escape from the reaction vacuum area of tower body inwall 10.And because the afterbody of deflector 11 is middle parts of pointing to tower body downwards, show that deflector 11 has certain angle of inclination, when system is in running, the lime stone slurry flowing down along tower body inwall 10 can reflux to the middle part of tower body by this deflector, has solved the phenomenon that tower body inwall slurries are piled up.
It is worth mentioning that, in the present embodiment, nozzle 8 is spiral nozzle, and the spray angle of nozzle is the obtuse angle of one approximately 120 degree.Hence one can see that, when lime stone slurry by with nozzle 8 on after the tangent and collision of the helicoid that diminishes continuously, thereby becoming small liquid pearl ejection forms vaporific, vaporific slurries form cross spray the flue gas rising area on whole absorption tower are covered from the ejection downwards of three layers of spraying layer, thereby can better carry out countercurrent spray desulphurization reaction with former flue gas.
The second embodiment of the present utility model relates to a kind of desulfuration absorbing tower, the second embodiment is on the basis of the first embodiment, to have done further improvement, it mainly improves and is: in the present embodiment, every group of deflector 11 is one downward 60 angle of spending with the inwall 10 of tower body.
By this kind of embodiment, can further guarantee when former flue gas is in uphill process, be positioned at tower body inwall 10 former flue gas around and can be guided to middle part, absorption tower by the water conservancy diversion angle of every group of deflector 11, it is gathered, to carry out desulfurization with the abundant cross reaction of vaporific lime stone slurry of spraying layer ejection, thereby avoid former flue gas to escape from the reaction vacuum area of tower body inwall 10.Can guarantee, the lime stone slurry flowing down along tower body inwall 10 can reflux to the middle part of tower body by the water conservancy diversion angle of this deflector 11 simultaneously, has further solved the phenomenon that tower body inwall slurries are piled up.
The 3rd embodiment of the present utility model relates to a kind of desulfuration absorbing tower, the 3rd embodiment is on the basis of the first embodiment, to have done further improvement, it mainly improves and is: in the present embodiment, deflector 11 is alloy sheets, and the width of described deflector is 800 millimeters.
Hence one can see that, because deflector 11 is alloy sheets, and the characteristic of alloy sheets be have that hardness is high, wear-resisting, intensity and a series of premium properties such as toughness is better, heat-resisting, corrosion-resistant, institute is so that deflector 11 is when contacting with lime stone slurry with former flue gas, can, due to the impact of the high temperature in tower body and chemical substance, not cause deflector 11 to produce distortion and corrosion.And because deflector 11 has enough width, so can effectively whole tower body inwall 10 fully be covered, further avoided the packing phenomenon of slurries.
The 4th embodiment of the present utility model relates to a kind of desulfuration absorbing tower, the 4th embodiment is on the basis of the first embodiment, to have done further improvement, it mainly improves and is: in the present embodiment, adopt argon arc welding to be fixed and be connected between deflector 11 and tower body inwall 10.
In the present embodiment, because deflector 11 adopts argon arc welding to be connected with tower body inwall 10, and the characteristic of argon arc welding is in the surrounding of arc welding, to lead to inert gas argon to protect, and air insulated, outside welding zone, is prevented to the oxidation of welding zone.Hence one can see that, by this kind of welding manner, can effectively avoid weld zone between the two to produce the possibility of oxidation, when guaranteeing deflector 11 and tower body inwall 10 connectivity robustness, and the security that has further improved whole system.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can to it, do various changes in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (9)
1. a desulfuration absorbing tower, comprises tower body, is arranged in described tower body and covers three groups of the upper, middle and lower spraying layer of flue gas rising area; Also comprise to be arranged on and in described tower body, be positioned at three groups of described upper, middle and lower spraying layer side and described tower body be separated into the flue gas dividing plate in flue gas rising area and flue gas decline district; Described tower body is offered respectively gas approach and exhanst gas outlet over against the both sides of described flue gas dividing plate; It is characterized in that:
Described desulfuration absorbing tower also comprises: be distributed in the deflector on the tower body inwall of flue gas rising area one side, described deflector starts to distribute from one end and the described tower body inwall junction of described flue gas dividing plate, terminates in the junction of the other end and the described tower body inwall of described flue gas dividing plate;
And the end of every group of deflector is connected with described tower body inwall, and the middle part of described tower body is pointed in the tail down of every group of deflector.
2. desulfuration absorbing tower according to claim 1, is characterized in that: the inwall of every group of deflector and described tower body is the angle of downward 60 degree.
3. desulfuration absorbing tower according to claim 1, is characterized in that: described deflector is alloy sheets.
4. desulfuration absorbing tower according to claim 1, is characterized in that: the width of described deflector is 800 millimeters.
5. desulfuration absorbing tower according to claim 3, is characterized in that: between described deflector and described tower body inwall, adopt argon arc welding to be fixed and be connected.
6. according to the desulfuration absorbing tower described in any one in claim 1 to 5, it is characterized in that: in each spraying layer, comprise the female pipe of N group spray, for arm that the female pipe of each spray is connected successively be distributed in the nozzle on described arm; Wherein, described N is natural number;
The position that respectively sprays female pipe in the spraying layer of three groups of described upper, middle and lower is corresponding one by one, and is not communicated with mutually.
7. desulfuration absorbing tower according to claim 6, is characterized in that: described nozzle is spiral nozzle.
8. desulfuration absorbing tower according to claim 6, is characterized in that: the spray angle of described nozzle is an obtuse angle.
9. desulfuration absorbing tower according to claim 8, is characterized in that: described obtuse angle is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396713.XU CN203944287U (en) | 2014-07-17 | 2014-07-17 | Desulfuration absorbing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396713.XU CN203944287U (en) | 2014-07-17 | 2014-07-17 | Desulfuration absorbing tower |
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| CN203944287U true CN203944287U (en) | 2014-11-19 |
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| CN201420396713.XU Expired - Fee Related CN203944287U (en) | 2014-07-17 | 2014-07-17 | Desulfuration absorbing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941426A (en) * | 2015-06-08 | 2015-09-30 | 中冶焦耐工程技术有限公司 | Acid pickling tower gas inlet distribution device and method |
-
2014
- 2014-07-17 CN CN201420396713.XU patent/CN203944287U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941426A (en) * | 2015-06-08 | 2015-09-30 | 中冶焦耐工程技术有限公司 | Acid pickling tower gas inlet distribution device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Jiangang Inventor after: Yao Qiujie Inventor before: Xu Jiangang Inventor before: Yao Qiujie Inventor before: Xu Shuhong |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |