CN105749732B - A kind of square chest type desulfurizing tower second level gas-liquid current equalizer - Google Patents
A kind of square chest type desulfurizing tower second level gas-liquid current equalizer Download PDFInfo
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- CN105749732B CN105749732B CN201610176938.8A CN201610176938A CN105749732B CN 105749732 B CN105749732 B CN 105749732B CN 201610176938 A CN201610176938 A CN 201610176938A CN 105749732 B CN105749732 B CN 105749732B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—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 solution or suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/126—Semi-solid reactants, e.g. slurries
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Abstract
The present invention relates to a kind of square chest type desulfurizing tower second level gas-liquid current equalizers, it include: several gas-liquid homogenizing plate modules, it along desulfurizing tower cross section tiled arrangements and is connected integral, each gas-liquid homogenizing plate module is made of several longitudinal steel plates arranged in parallel, the steel plate is straight panel, the steel plate equidistant placement；The junction of the gas-liquid homogenizing plate module is equipped with the anti-hawk of triangle.The disturbance that air-flow is rotated in desulfurizing tower second level gas-liquid current equalizer of the present invention, make gas-liquid more come into full contact with increase desulphurization reaction area, while in gas-liquid flue dust and gypsum slurries remove, reach dedusting purpose.
Description
Technical field
The present invention relates to a kind of square chest type desulfurizing tower second level gas-liquid current equalizers.
Background technique
As China's economic continues to develop, electricity needs persistently increases, haze long lasting effect, and control PM2.5 refers to discuss
Thing schedule.Local government, electric power enterprise propose that " minimum discharge ", " near-zero release ", " reach combustion engine discharge standard " build one after another
If or transformation requires." minimum discharge " technology, the discharge of scientific guidance Thermal Power Generation Industry sustainable development ultra-clean.
State Development and Reform Commission prints and distributes " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) " atmosphere dirt of keeping under strict control
Contaminate object discharge.Newly-built Thermal generation unit (being contained in the unit built and be included in national construction of fire and electricity planning with project) answers synchronized construction
Gas bypass channel must not be arranged in advanced high-efficiency desulfurization, denitration and dust removal installation.Eastern region (Liaoning, Beijing, Tianjin, river
11 provinces and cities such as north, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan) create Thermal generation unit Air Pollutant Emission
Concentration basically reach gas turbine group emission limit (i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, nitrogen oxides
Concentration of emission is respectively no higher than 10,35,50 milligrams/cubic metre).Middle part (Heilungkiang, Jilin, Shanxi, Anhui, Hubei, lake
8 province such as south, Henan, Jiangxi) new-built unit is close to or up to gas turbine group emission limit in principle.Encourage west area newly-built
Unit is close to or up to gas turbine group emission limit, supports synchronous atmosphere pollution combination and cooperation of carrying out to remove, reduces by three oxygen
Change the pollutant emissions such as sulphur, mercury, arsenic.In traditional flue gas desulphurization system, less than 95%, desulfurization outlet drain is desulfurization discharge efficiency
Flue dust, sulfur dioxide emissioning concentration are respectively greater than 20,100 milligrams/cubic metre, and minimum discharge requirement (flue dust, two has not been reached yet
Sulfur oxide emissions concentration is respectively no higher than 10,35 milligrams/cubic metre).Existing apparatus is in desulfurization entrance SO2Concentration 3420mg/Nm3
When, desulfurization entrance dust concentration is 24mg/Nm3When, desulfurization exports SO2Concentration is 180mg/Nm3, outlet dust concentration is 20mg/
Nm3, desulfuration efficiency 95%, desulfurizer exiting flue gas amount is 246200Nm3/h.Existing desulfurization equipment has been unable to satisfy super
Low emission exports sulfur dioxide (SO2) < 20mg/Nm3, outlet dust concentration be 5mg/Nm3Emission request, i.e., existing desulfurization system
System is not able to satisfy minimum discharge operation emission request, therefore need to be transformed to generator set desulfurization reaction unit.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of square chest type desulfurizing tower second level gas-liquid current equalizers.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of square chest type desulfurizing tower second level gas-liquid current equalizer, the square chest type desulfurizing tower includes: gas inlet, setting
In the middle lower section of desulfurizing tower side；The top of desulfurizing tower side is arranged in exhanst gas outlet；Slurry tank is arranged in desulfurizing tower
Internal bottom side, positioned at the lower section of the gas inlet；Spray portion is arranged inside desulfurizing tower, positioned at the gas inlet
Top, the spray portion are equipped with 5 spraying layers, are equipped with several nozzles on each spraying layer；Second level gas-liquid current equalizer, packet
Two gas-liquid current equalizers are included, respectively along desulfurizing tower cross sectional arrangement, and are arranged in gas inlet and third layer spray
Between layer and the 4th layer of spraying layer, comprising:
Several gas-liquid homogenizing plate modules along desulfurizing tower cross section tiled arrangements and connect integral, each gas-liquid
Homogenizing plate module be made of several longitudinal steel plates arranged in parallel, and the steel plate is straight panel, and the steel plate equidistant placement；
The junction of the gas-liquid homogenizing plate module is equipped with the anti-hawk of triangle.
Further, a length of 3991mm of each gas-liquid homogenizing plate module, width 680mm, high 300mm.
Further, the spacing between the steel plate is 57mm.
Further, the second level gas-liquid current equalizer is made of 2205 stainless steels.
Further, the steel plate thickness is 3~6mm.
Further, the steel plate thickness is 3mm.
Further, the triangle anti-gray board bottom portion is fixed on I-beam.
Further, four angles of the gas-liquid current equalizer are separately fixed on the pillar of desulfurizing tower.
Further, the intersection bottom of the gas-liquid current equalizer and desulfurizing tower surrounding siding is equipped with I-beam.
Further, the anti-hawk of triangle is equipped with every the junction of 1,2,3 or 4 gas-liquid homogenizing plate module.
The invention has the benefit that
Square chest type desulfurizing tower second level gas-liquid current equalizer of the present invention makes more equal into desulfurization tower flue gas flow distribution
It is even, it is more uniform to improve gas-liquid contact, it can guarantee in desulfurization entrance SO2Concentration is 3420mg/Nm3When, desulfurization entrance flue dust is dense
Degree is 24mg/Nm3When, reach desulfuration efficiency not less than 99% and desulfurization exports SO2Concentration is not more than 20mg/Nm3, export flue dust
Concentration is 5mg/Nm3Emission request optimizes design, reduces costs, and plays energy saving and cost lowering synergistic effect, has great
Economic significance.
Desulfurizing tower second level gas-liquid current equalizer of the present invention is generated violent in the device when gas-liquid passes through in desulfurizing tower
Disturbance mixing, gas-liquid can be made to form superposed layer on device top, to increase gas-liquid contact surface area, when extending slurries and stopping
Between and the reaction time, keep flue gas and slurry liquid contacts surface more abundant, so that desulfuration efficiency be made to be improved 4%~5%.
The disturbance that air-flow is rotated in desulfurizing tower second level gas-liquid current equalizer of the present invention, connects gas-liquid more sufficiently
Touching increase desulphurization reaction area, while in gas-liquid flue dust and gypsum slurries remove, reach dedusting purpose.
Desulfurizing tower second level gas-liquid current equalizer of the present invention has that desulfuration efficiency is high, low energy consumption, small (resistance only has resistance
150Pa), the advantages that structure is simple, maintenance is easy to maintenance, mentions suitable for the newly-built desulfurizing item for the middle and high sulphur coal that burns and desulfurization
Imitate transformation project.The second level gas-liquid current equalizer keeps flue gas flow field distribution more uniform, and unbiased flow short-circuit dead zone, resistance is low,
Keep flue gas flow field distribution more uniform, no bias current, resistance is low, alleviates the abrasion of upstream device, extends service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the desulfurizing tower equipped with second level gas-liquid current equalizer of the present invention；
Fig. 2 is the structural schematic diagram of gas-liquid current equalizer of the present invention；
Fig. 3 is the sectional drawing in the face 1-1 in Fig. 2；
Fig. 4 is the sectional drawing in the face 2-2 in Fig. 2；
Fig. 5 is the structural schematic diagram of gas-liquid homogenizing plate module junction of the present invention；
Fig. 6 is gas-liquid homogenizing plate module cross-section diagram of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
A kind of square chest type desulfurizing tower second level gas-liquid current equalizer, as shown in Figure 1, the square chest type desulfurizing tower includes: flue gas
The middle lower section of desulfurizing tower side is arranged in import；The top of desulfurizing tower side is arranged in exhanst gas outlet；Slurry tank is set
The bottom side inside desulfurizing tower is set, positioned at the lower section of the gas inlet；Spray portion is arranged inside desulfurizing tower, is located at described
The top of gas inlet, the spray portion are equipped with 5 spraying layers, are equipped with several nozzles on each spraying layer；Second level gas-liquid
Current equalizer, including two gas-liquid current equalizers, respectively along desulfurizing tower cross sectional arrangement, and be arranged in gas inlet with
Between first layer spraying layer between third layer spraying layer and the 4th layer of spraying layer, as shown in Figure 2, comprising:
Several gas-liquid homogenizing plate modules, along desulfurizing tower cross section tiled arrangements and connect it is integral, such as Fig. 6 institute
Show, each gas-liquid homogenizing plate module is made of several longitudinal steel plates arranged in parallel, and the steel plate is straight panel, the steel plate
Equidistant placement, between all have the spacing of 57mm, the steel plate thickness is 3mm.As shown in Figures 3 and 4, the gas-liquid homogenizing plate
The junction of module is equipped with the anti-hawk of triangle, and the triangle anti-gray board bottom portion is fixed on I-beam, specifically, every 1,2,
The junction of 3 or 4 gas-liquid homogenizing plate modules is equipped with the anti-hawk of triangle, when the junction of the gas-liquid homogenizing plate module is not set
When having the anti-hawk of triangle, the spacing between the gas-liquid homogenizing plate module is 40mm.The gas-liquid current equalizer and desulfurizing tower
The intersection bottom of surrounding siding is equipped with I-beam, with 20mm between the gas-liquid current equalizer and desulfurizing tower surrounding siding
Spacing.Four angles of the gas-liquid current equalizer are separately fixed on the pillar of desulfurizing tower.
Wherein, a length of 3991mm of each gas-liquid homogenizing plate module, width 680mm, high 300mm.
The second level gas-liquid current equalizer is made of 2205 stainless steels.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of square chest type desulfurizing tower second level gas-liquid current equalizer, the square chest type desulfurizing tower includes: gas inlet, and setting exists
The middle lower section of desulfurizing tower side；The top of desulfurizing tower side is arranged in exhanst gas outlet；Slurry tank is arranged in desulfurizing tower
Portion bottom side, positioned at the lower section of the gas inlet；Spray portion is arranged inside desulfurizing tower, positioned at the upper of the gas inlet
Side, the spray portion are equipped with 5 spraying layers, are equipped with several nozzles on each spraying layer；Second level gas-liquid current equalizer, including
Two gas-liquid current equalizers respectively along desulfurizing tower cross sectional arrangement, and are arranged in gas inlet and first layer spraying layer
Between between third layer spraying layer and the 4th layer of spraying layer characterized by comprising
Several gas-liquid homogenizing plate modules along desulfurizing tower cross section tiled arrangements and connect integral, and each gas-liquid flows
Plate module be made of several longitudinal steel plates arranged in parallel, and the steel plate is straight panel, and the steel plate equidistant placement, and edge
Vertical direction arrangement；The anti-hawk of triangle is equipped with every the junction of 1,2,3 or 4 gas-liquid homogenizing plate module；The gas-liquid flows
Four angles of device are separately fixed on the pillar of desulfurizing tower；The intersection of the gas-liquid current equalizer and desulfurizing tower surrounding siding
Bottom is equipped with I-beam, with the spacing of 20mm between the gas-liquid current equalizer and desulfurizing tower surrounding siding；The triangle
Anti-gray board bottom portion is fixed on I-beam；
The a length of 3991mm of each gas-liquid homogenizing plate module, width 680mm, high 300mm；Spacing between the steel plate is
57mm；The steel plate thickness is 3mm；The second level gas-liquid current equalizer is made of 2205 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176938.8A CN105749732B (en) | 2016-03-24 | 2016-03-24 | A kind of square chest type desulfurizing tower second level gas-liquid current equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176938.8A CN105749732B (en) | 2016-03-24 | 2016-03-24 | A kind of square chest type desulfurizing tower second level gas-liquid current equalizer |
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| CN105749732A CN105749732A (en) | 2016-07-13 |
| CN105749732B true CN105749732B (en) | 2019-04-30 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618515U (en) * | 2010-02-04 | 2010-11-03 | 安徽省元琛环保科技有限公司 | Desulfurizing tower |
| CN203564963U (en) * | 2013-10-25 | 2014-04-30 | 福建鑫泽环保设备工程有限公司 | Flue gas denitration airflow uniform-distribution device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9227157B2 (en) * | 2010-07-12 | 2016-01-05 | Gea Process Engineering A/S | Spray dryer absorption apparatus with flat-bottomed chamber |
| JP6217845B2 (en) * | 2014-04-15 | 2017-10-25 | 株式会社Ihi | Desulfurization apparatus and exhaust gas treatment system using the same |
| TW201609222A (en) * | 2014-06-04 | 2016-03-16 | 首威公司 | Stabilization of sodic fly ash using a water-soluble source of silicate and a material containing calcium and/or magnesium |
| CN204233970U (en) * | 2014-10-30 | 2015-04-01 | 江苏苏境电力科技有限责任公司 | The board-like airflow uniform distribution device of a kind of flue gas desulfurization demister |
| CN204601990U (en) * | 2015-05-18 | 2015-09-02 | 武汉凯迪电力环保有限公司 | A kind of dust-removing desulfurating apparatus |
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- 2016-03-24 CN CN201610176938.8A patent/CN105749732B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618515U (en) * | 2010-02-04 | 2010-11-03 | 安徽省元琛环保科技有限公司 | Desulfurizing tower |
| CN203564963U (en) * | 2013-10-25 | 2014-04-30 | 福建鑫泽环保设备工程有限公司 | Flue gas denitration airflow uniform-distribution device |
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| CN105749732A (en) | 2016-07-13 |
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Inventor after: Liu Yuxin Inventor after: Liu Chang Inventor after: Wu Guojun Inventor after: Li Chunyu Inventor after: Xia Shuang Inventor after: Li Yehong Inventor before: Liu Yuxin Inventor before: Liu Chang Inventor before: Wu Guojun Inventor before: Lu Shengkuan Inventor before: Peng Daijun |
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