CN111330432A - High-efficient two entry passageway whirl atomizing desulfurization nozzle - Google Patents
High-efficient two entry passageway whirl atomizing desulfurization nozzle Download PDFInfo
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- CN111330432A CN111330432A CN202010286605.7A CN202010286605A CN111330432A CN 111330432 A CN111330432 A CN 111330432A CN 202010286605 A CN202010286605 A CN 202010286605A CN 111330432 A CN111330432 A CN 111330432A
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- inlet channel
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- rotational flow
- flow chamber
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 29
- 230000023556 desulfurization Effects 0.000 title claims abstract description 29
- 238000000889 atomisation Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims description 22
- 241001270131 Agaricus moelleri Species 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003546 flue gas Substances 0.000 abstract description 14
- 239000002245 particle Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 description 9
- 238000005507 spraying Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle, wherein a first inlet channel is communicated with a left inlet of a rotational flow chamber, a second inlet channel is communicated with a right inlet of the rotational flow chamber, the upper end of an outlet straight pipe section is communicated with an outlet at the bottom of the rotational flow chamber, and the lower end of the outlet straight pipe section is communicated with an outlet flaring section; the inner wall of the front side surface of the first inlet channel is tangent to the inner wall of the front side surface of the rotational flow chamber, the inner wall of the rear side surface of the second inlet channel is tangent to the inner wall of the rear side surface of the rotational flow chamber, the axis of the outlet straight pipe section, the axis of the outlet flaring section and the axis of the rotational flow chamber are located on the same straight line, the nozzle can effectively improve the phenomenon of uneven space flow of the single-inlet-channel atomization desulfurization nozzle, the atomization particle size is reduced, the probability of reaction between flue gas and liquid drops is improved, and the desulfurization efficiency of the flue gas is improved.
Description
Technical Field
The invention belongs to the field of wet flue gas desulfurization, and relates to a high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle.
Background
At present, the limestone-gypsum wet desulphurization process is mostly adopted in the wet flue gas desulphurization process, and the atomization desulphurization nozzle is key equipment in a spray absorption tower of a wet desulphurization system, and mainly has the function of atomizing limestone slurry into fine liquid drops capable of providing enough contact area, SO that SO in the flue gas is effectively removed2The atomization performance of the atomization desulfurization nozzle has direct influence on the desulfurization efficiency and the operation energy consumption of the whole system.
The atomizing nozzle of the desulfurization system in the existing thermal power industry is a single-inlet-channel cyclone atomizing nozzle which is large in structural size, and when slurry enters a cyclone chamber from a single-inlet channel, the slurry can travel along different paths and time from the nozzle inlet to the nozzle outlet under the combined action of gravity and rotating centrifugal force. The slurry outflow process has areas with large flow resistance, difficult outflow and small spray flow, which causes uneven spatial distribution of the spray flow. In desulfurizing tower thick liquid spray zone territory, flue gas and thick liquid spraying reverse flow, little when some position thick liquid spraying flow, the flue gas then passes through more easily, leads to the formation in flue gas corridor, reduces the effective reaction probability of flue gas and thick liquid, causes desulfurization efficiency to reduce. Meanwhile, the nozzle has a problem of large spray particle size. The specific surface area is small when the spraying particle size of the same slurry is large, the reaction speed of the slurry and the flue gas is low, the desulfurization efficiency is influenced, and the desulfurization energy consumption is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle which can effectively improve the phenomenon of uneven space flow of the single-inlet-channel atomization desulfurization nozzle, reduce the atomization particle size, improve the probability of reaction between flue gas and liquid drops and improve the desulfurization efficiency of the flue gas.
In order to achieve the purpose, the high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle comprises a rotational flow chamber, a first inlet channel, a second inlet channel, an outlet straight pipe section and an outlet flaring section, wherein the first inlet channel is communicated with a left inlet of the rotational flow chamber, the second inlet channel is communicated with a right inlet of the rotational flow chamber, the upper end of the outlet straight pipe section is communicated with an outlet at the bottom of the rotational flow chamber, and the lower end of the outlet straight pipe section is communicated with the outlet flaring section;
the inner wall of the front side surface of the first inlet channel is tangent to the inner wall of the front side surface of the rotational flow chamber, the inner wall of the rear side surface of the second inlet channel is tangent to the inner wall of the rear side surface of the rotational flow chamber, and the axis of the outlet straight pipe section, the axis of the outlet flaring section and the axis of the rotational flow chamber are located on the same straight line.
The cross-sectional dimension of the first inlet channel and the cross-sectional dimension of the second inlet channel decrease progressively in the direction of slurry flow.
The swirl chamber is in an inverted pear-shaped structure.
The inner and outer walls of the first inlet channel, the second inlet channel, the cyclone chamber, the outlet straight pipe section and the outlet flaring section are smooth, and the wall thickness is larger than 8 mm.
The axis of the first inlet passage is not collinear with the axis of the second inlet passage.
The top of the cyclone chamber is of a flat-top structure.
The cross-sectional dimension of the outlet flared section increases gradually in the direction of slurry flow.
The invention has the following beneficial effects:
when the high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle is specifically operated, a double-inlet-channel structure is adopted, wherein the first inlet channel is communicated with the left inlet of the rotational flow chamber, the second inlet channel is communicated with the right inlet of the rotational flow chamber, the inner wall of the front side surface of the first inlet channel is tangent to the inner wall of the front side surface of the rotational flow chamber, the inner wall of the rear side surface of the second inlet channel is tangent to the inner wall of the rear side surface of the rotational flow chamber, the first inlet channel and the second inlet channel are symmetrical about the center of the rotational flow chamber, the slurry outflow path is also symmetrical and shorter, the problems that the slurry flow resistance in the area of the single inlet channel is large and the outflow of the nozzle part is difficult are solved, and the better spray. Simultaneously, the design that the two-way opposite flushing of thick liquid flows enables the thick liquid to obtain higher whirl intensity in the whirl cavity, the thick liquid obtains higher initial kinetic energy, crushing condition is better, in the export section, strong whirl continues the acceleration rate in gathering together and flows through export straight tube section, then scatter into thin liquid film by export flaring section, the liquid film vibrates in the air and tears to the liquid silk, final breakage is even fine liquid drop fine to improve atomization effect and desulfurization efficiency, moreover, the steam generator is simple in structure, convenient for operation, and the practicality is extremely strong.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a perspective view of the present invention.
Wherein, 1 is a first inlet channel, 2 is a second inlet channel, 3 is a rotational flow chamber, 4 is an outlet straight pipe section, and 5 is an outlet flaring section.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, 2 and 3, the high-efficiency dual-inlet channel swirl atomizing desulfurization nozzle of the present invention comprises a swirl chamber 3, a first inlet channel 1, a second inlet channel 2, an outlet straight tube section 4 and an outlet flared section 5, wherein the first inlet channel 1 is communicated with a left inlet of the swirl chamber 3, the second inlet channel 2 is communicated with a right inlet of the swirl chamber 3, an upper end of the outlet straight tube section 4 is communicated with a bottom outlet of the swirl chamber 3, and a lower end of the outlet straight tube section 4 is communicated with the outlet flared section 5; the inner wall of the front side surface of the first inlet channel 1 is tangent to the inner wall of the front side surface of the rotational flow chamber 3, the inner wall of the rear side surface of the second inlet channel 2 is tangent to the inner wall of the rear side surface of the rotational flow chamber 3, and the axis of the outlet straight pipe section 4, the axis of the outlet flared section 5 and the axis of the rotational flow chamber 3 are positioned on the same straight line.
The cross-sectional dimension of the outlet flared section 5 gradually increases along the slurry flow direction; along the slurry flowing direction, the cross section size of the first inlet channel 1 and the cross section size of the second inlet channel 2 are gradually reduced, the flow speed of the slurry can be increased, the rotating strength of the slurry in the cyclone chamber 3 is improved, and the spraying effect is strengthened.
The cyclone chamber 3 is of an inverted pear-shaped structure, the cyclone chamber 3 bulges outwards and is hollow, the upper end and the lower end of the cyclone chamber are gradually reduced, and the upper part of the cyclone chamber is flat.
The outlet straight pipe section 4 and the outlet flaring section 5 form a nozzle outlet section, wherein the flaring structure of the outlet flaring section 5 can enlarge the spray angle of the spray, improve the effective coverage area of the slurry, and the outlet flaring section 5 can be designed to have different angles according to the requirements, so that the accurate control of the spray angle is realized.
The inner and outer walls of the first inlet channel 1, the second inlet channel 2, the cyclone chamber 3, the outlet straight pipe section 4 and the outlet flaring section 5 are smooth, and the wall thickness is more than 8 mm; the axis of the first inlet channel 1 is not collinear with the axis of the second inlet channel 2.
Compared with a single-inlet channel nozzle, the slurry spraying nozzle has the advantages that the slurry spraying flow space distribution is more uniform, the flue gas and the slurry are more fully mixed, the slurry in the cyclone chamber 3 flows in a two-way opposite flushing manner, the cyclone strength is increased, the atomizing capacity is improved, the slurry particle size is effectively reduced, and SO in the flue gas is effectively reduced2The probability of reaction with the desulfurizer is increased, the gas-liquid ratio and the energy consumption of the desulfurization reaction liquid are reduced, and the economical efficiency of the desulfurization project is improved.
Claims (7)
1. A high-efficiency double-inlet-channel rotational flow atomization desulfurization nozzle is characterized by comprising a rotational flow chamber (3), a first inlet channel (1), a second inlet channel (2), an outlet straight pipe section (4) and an outlet flaring section (5), wherein the first inlet channel (1) is communicated with a left inlet of the rotational flow chamber (3), the second inlet channel (2) is communicated with a right inlet of the rotational flow chamber (3), the upper end of the outlet straight pipe section (4) is communicated with a bottom outlet of the rotational flow chamber (3), and the lower end of the outlet straight pipe section (4) is communicated with the outlet flaring section (5);
the inner wall of the front side surface of the first inlet channel (1) is tangent to the inner wall of the front side surface of the rotational flow chamber (3), the inner wall of the rear side surface of the second inlet channel (2) is tangent to the inner wall of the rear side surface of the rotational flow chamber (3), and the axis of the outlet straight pipe section (4), the axis of the outlet flaring section (5) and the axis of the rotational flow chamber (3) are positioned on the same straight line.
2. A high efficiency dual inlet channel swirl atomizing desulfurization nozzle in accordance with claim 1, characterized in that the cross sectional dimension of the first inlet channel (1) and the cross sectional dimension of the second inlet channel (2) are gradually decreased in the slurry flow direction.
3. The high efficiency dual inlet channel swirl atomizing desulfurization nozzle of claim 1, characterized in that the swirl chamber (3) is of an inverted pear-shaped structure.
4. The high-efficiency dual-inlet-channel swirl atomizing desulfurization nozzle of claim 1, characterized in that the inner and outer walls of the first inlet channel (1), the second inlet channel (2), the swirl chamber (3), the outlet straight pipe section (4) and the outlet flared section (5) are smooth, and the wall thickness is more than 8 mm.
5. A high efficiency dual inlet passage swirl atomizing desulfurization nozzle in accordance with claim 1, characterized in that the axis of the first inlet passage (1) is not collinear with the axis of the second inlet passage (2).
6. The high-efficiency dual-inlet channel swirl atomizing desulfurization nozzle of claim 1, characterized in that the top of the swirl chamber (3) is of a flat-top structure.
7. A high efficiency dual inlet channel swirl atomizing desulfurization nozzle in accordance with claim 1, characterized in that the cross-sectional dimension of the outlet flared section (5) is gradually increased in the slurry flow direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286605.7A CN111330432A (en) | 2020-04-13 | 2020-04-13 | High-efficient two entry passageway whirl atomizing desulfurization nozzle |
| PCT/CN2020/123077 WO2021208396A1 (en) | 2020-04-13 | 2020-10-23 | Efficient double-inlet channel rotational flow atomization desulfurization nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286605.7A CN111330432A (en) | 2020-04-13 | 2020-04-13 | High-efficient two entry passageway whirl atomizing desulfurization nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111330432A true CN111330432A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010286605.7A Pending CN111330432A (en) | 2020-04-13 | 2020-04-13 | High-efficient two entry passageway whirl atomizing desulfurization nozzle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111330432A (en) |
| WO (1) | WO2021208396A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452575A (en) * | 2020-11-19 | 2021-03-09 | 西安热工研究院有限公司 | Rotational flow atomizing nozzle |
| WO2021208396A1 (en) * | 2020-04-13 | 2021-10-21 | 西安热工研究院有限公司 | Efficient double-inlet channel rotational flow atomization desulfurization nozzle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225662B (en) * | 2021-12-07 | 2024-02-13 | 国网河北能源技术服务有限公司 | Hysteresis model-based flue gas desulfurization and denitrification optimal control method |
| CN115920611B (en) * | 2022-12-09 | 2023-06-23 | 原初科技（北京）有限公司 | Coal ash carbon fixing device and use method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0426429D0 (en) * | 2004-12-01 | 2005-01-05 | Incro Ltd | Nozzle arrangement and dispenser incorporating nozzle arrangement |
| KR101521864B1 (en) * | 2013-07-08 | 2015-05-20 | 포항공과대학교 산학협력단 | an apparatus for trapping carbon dioxide |
| AU2017290823B2 (en) * | 2016-07-01 | 2022-12-15 | Tyco Fire Products Lp | A high pressure water mist nozzle device and methods for providing indirect and direct impingement of a fire |
| GB2560916B (en) * | 2017-03-27 | 2020-01-01 | Edwards Ltd | Nozzle for an abatement device |
| CN110292893A (en) * | 2018-03-22 | 2019-10-01 | 中国石油大学(北京) | Multiple entry gas liquid two-phase whirl feeds following spray atomizer |
| CN109513334A (en) * | 2019-01-15 | 2019-03-26 | 西安西热锅炉环保工程有限公司 | A kind of smoke-gas wet desulfurization atomizer |
| CN211987980U (en) * | 2020-04-13 | 2020-11-24 | 华能国际电力股份有限公司 | High-efficient two entry passageway whirl atomizing desulfurization nozzle |
| CN111330432A (en) * | 2020-04-13 | 2020-06-26 | 华能国际电力股份有限公司 | High-efficient two entry passageway whirl atomizing desulfurization nozzle |
-
2020
- 2020-04-13 CN CN202010286605.7A patent/CN111330432A/en active Pending
- 2020-10-23 WO PCT/CN2020/123077 patent/WO2021208396A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208396A1 (en) * | 2020-04-13 | 2021-10-21 | 西安热工研究院有限公司 | Efficient double-inlet channel rotational flow atomization desulfurization nozzle |
| CN112452575A (en) * | 2020-11-19 | 2021-03-09 | 西安热工研究院有限公司 | Rotational flow atomizing nozzle |
| CN112452575B (en) * | 2020-11-19 | 2021-07-13 | 西安热工研究院有限公司 | Rotational flow atomizing nozzle |
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| Publication number | Publication date |
|---|---|
| WO2021208396A1 (en) | 2021-10-21 |
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