CN205850575U - A kind of fairing for wet desulphurization absorption tower - Google Patents

A kind of fairing for wet desulphurization absorption tower Download PDF

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Publication number
CN205850575U
CN205850575U CN201620826107.6U CN201620826107U CN205850575U CN 205850575 U CN205850575 U CN 205850575U CN 201620826107 U CN201620826107 U CN 201620826107U CN 205850575 U CN205850575 U CN 205850575U
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China
Prior art keywords
absorption tower
wet desulphurization
fairing
desulphurization absorption
spraying layer
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CN201620826107.6U
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Inventor
杜明生
谷小兵
赵怡凡
张若雨
赵帆
程泷
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Datang Environment Industry Group Co Ltd
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Datang Environment Industry Group Co Ltd
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Abstract

This utility model provides a kind of fairing for wet desulphurization absorption tower, comprising: the turbulent pipe grid device being arranged between gas approach and bottom spraying layer;It is arranged at the multiple CPR dusts between described turbulent pipe grid device and bottom spraying layer and/or between adjacent two-layer spraying layer;Described CPR dust is the single-revolution body that central axis is gyroaxis of desulfuration absorbing tower in a wet process, and the surface of revolution of this revolving body is a right angled triangle, and this right angled triangle has a vertical straight arm of angle, the inwall of this vertical straight arm of angle laminating wet desulphurization absorption tower.After arranging CPR dust, there is gather qi together function, the formation of smoke corridor can be effectively prevent with strengthening flow toward center flow.Coordinate tubulature type turbulence device, thus desulfuration efficiency is greatly improved.

Description

A kind of fairing for wet desulphurization absorption tower
Technical field
This utility model relates to exhaust-gas treatment field, particularly to Wet Flue Gas Desulfurization Technology field, and specifically a kind of use Fairing in wet desulphurization absorption tower.
Background technology
On JIUYUE 12nd, 2014, National Development and Reform Commission, Environmental Protection Department, National Energy Board combine and issue that " coal electricity saves Upgrading and transformation action plan (2014 the year two thousand twenty) can be reduced discharging " (send out and change the energy (2014) 2093), this action requirements of plan east The newly-built Thermal generation unit SO in area, portion2Concentration of emission basically reaches gas turbine group emission limit (35 milligram/cubic metre), in Area, portion, in principle close to or up gas turbine group emission limit, encourages west area new-built unit to take turns close to or up combustion gas Unit emission limit.And in the case of the most coal-fired sulfur content is higher, the desulfurization of conventional common void tower single cycle desulfurizing tower Efficiency is extremely difficult to the new standard-required in national environmental protection portion.At present in the case of ature of coal condition deviation, single column single cycle desulfurization The desulfuration efficiency of tower is extremely difficult to the new standard-required in national environmental protection portion.
In order to improve desulfuration efficiency, prior art much uses the pallet tower of Ba Wei company.Pallet tower rises turbulent flow The manufacturing process of perforated trays device extremely complex, its device raw material selection is expensive high-strength alloy material, and Due to the feature of its porous, causing pallet easily to block, once block, the flow field in whole absorption tower can become more not Uniformly, increase the liquid flux of not blocking portion simultaneously, and then cause more serious blocking, need the most in some cases to stop Machine overhauling.Additionally the device resistance of pallet tower is the biggest, needs to be equipped with powerful aerator or air-introduced machine, thus to pipeline Requirement of strength is the highest, so, can greatly increase operation cost.
Authorize utility model patent (application number: 201420538554.2) to disclose a kind of wet desulphurization and carry the rapids of effect Stream device, in order to be installed on the upside of the gas approach on absorption tower and between spraying layer, including a turbosphere, more than two-layer Turbosphere pipeline;Described turbosphere pipeline includes some pipes being arranged in parallel;Also include described turbosphere pipeline is fixed on suction Receive the some link supports in tower and some support beams;Described turbosphere pipeline is staggeredly arranged in parallel between layers.Use flat The rubber lined pipe that line interlacing is arranged replaces traditional perforated trays, and process for machining and manufacturing is extremely simple, convenient for installation and maintenance, not only Mass-transfer efficiency can be improved, simultaneously it can be avoided that blocking.But this device solve only the rectification of gas approach, turbulent flow and increasing Add gas-liquid contact time.SO2Concentration change on cross section, absorption tower is that both sides are high, middle low, near absorption tower inner wall position Serosity sprinkle density much lower compared with center, absorption tower;Meanwhile, serosity, when being sprayed onto on the inwall of absorption tower, can form liquid Film flows down along absorption tower inwall, and the mass transfer effect in this part gas-to-liquid contact face is excessively poor.A part of flue gas is not through enough Gas-to-liquid contact be out absorption tower, this has resulted in flue gas " escape " along absorption tower inwall, thus affects whole desulfurization system The smoke desulfurization efficiency of system.
Utility model content
For problem above, the purpose of this utility model is to provide a kind of fairing for wet desulphurization absorption tower, After arranging CPR dust, there is gather qi together function, the shape of smoke corridor can be effectively prevent with strengthening flow toward center flow Become.Coordinate tubulature type turbulence device, thus desulfuration efficiency is greatly improved.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of fairing for wet desulphurization absorption tower, this wet desulphurization absorption tower is sequentially arranged along a flue gas flow path There are a gas approach and at least one spraying layer, comprising:
The turbulent pipe grid device being arranged between gas approach and described spraying layer;
It is arranged at the multiple potentiation between described turbulent pipe grid device and spraying layer and/or between adjacent two-layer spraying layer Ring;
Described CPR dust is the single-revolution body that central axis is gyroaxis of desulfuration absorbing tower in a wet process, returning of this revolving body Turning face is a right angled triangle, and this right angled triangle has a vertical straight arm of angle, and the laminating wet desulphurization of this vertical straight arm of angle absorbs The inwall of tower.
Further, the CPR dust being arranged between described turbulent pipe grid device and bottom spraying layer sprays with the bottom Vertical dimension between Ceng is 0.2 to 0.8m.
Further, the CPR dust between adjacent two-layer spraying layer and hanging down between top one layer of spraying layer it are arranged at Straight distance is 0.2 to 1.0m.
Further, described turbulent pipe grid device includes: include the turbosphere pipeline of more than two-layer;Described turbosphere pipeline Including some pipes being arranged in parallel;Also include some link supports of being fixed in absorption tower by described turbosphere pipeline and some Support beam;Described turbosphere pipeline is staggeredly arranged in parallel between layers.
Further, described right angled triangle also has a level right angle limit and a hypotenuse, and described hypotenuse is straight with this level The angular range that the arm of angle is formed is 20 to 60 °.
Further, this angular range preferably 30 to 45 °.
Further, a length of 0.3 to the 0.6m on this level right angle limit.
Further, the material of described CPR dust is rustless steel, is fixed in wet desulphurization absorption tower by welding manner Inwall.
Further, the material of described CPR dust is line with rubber carbon steel, is threaded connection or pressure plate structure is fixed in wet method The inwall of desulfuration absorbing tower.
By taking technique scheme, the lime stone slurry under spraying layer spray forms one layer on turbulent pipe grid device and holds Liquid layer, former flue gas first passes through turbulent pipe grid device and is able to rectification, and before making flue gas enter spray district, uniform situation greatly improves, Substantially avoided inlet flue gas bias current and the phenomenon of short circuit, and between flue gas turbulence device, produce strong turbulent flow and eddy current work By, the effect of mass transmitting of strengthening gas-liquid-solid, hold liquid layer finally by lime stone slurry, add gas-liquid contact time, thus greatly Improve greatly desulfuration efficiency, optimize flow field.Near the position of spraying layer, the CPR dust of one loop is installed at absorption tower wall.Keep away Exempt from limit wall and " wall effect " occurs, be equivalent to, at absorption tower wall, nozzle is installed, grout distribution is corrected.Through turbulence device After, flue gas passes through spraying layer, can be effectively improved the removal efficiency of sulfur dioxide, improves absorbent utilization rate.
So, turbulent pipe grid device and CPR dust can be unified into an entirety by this utility model, jointly act on raising The SO on absorption tower2Except efficiency.
Accompanying drawing explanation
Fig. 1 is that this utility model shows with the structural profile for the fairing of wet desulphurization absorption tower in an embodiment It is intended to.
Fig. 2 be in Fig. 1 A-A to sectional view.
Fig. 3 be in Fig. 1 B-B to sectional view
Description of reference numerals: 1-desulfuration absorbing tower body;2-gas approach;3-turbulent pipe grid device;4-CPR dust;5-sprays Drench layer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clear, complete description.
As shown in Figure 1 to Figure 3, providing a kind of fairing for wet desulphurization absorption tower in an embodiment, this is wet Method desulfuration absorbing tower has desulfuration absorbing tower body 1, has been sequentially arranged entrance along a flue gas flow path in desulfuration absorbing tower body 1 Flue 2 and Multi-layer sprinkling layer 5, this device includes:
The turbulent pipe grid device 3 being arranged between gas approach 2 and bottom spraying layer;
It is arranged at the multiple potentiation between turbulent pipe grid device 3 and bottom spraying layer and between adjacent two-layer spraying layer Ring 4;In other embodiments, as spraying layer only has one layer, then only potentiation is set between turbulent pipe grid device and this spraying layer Ring.
CPR dust 4 is the single-revolution body that central axis is gyroaxis of desulfuration absorbing tower in a wet process, the revolution of this revolving body Face is a right angled triangle, and this right angled triangle has a vertical straight arm of angle, this vertical straight arm of angle laminating wet desulphurization absorption tower Inwall.
Wherein, it is arranged between the CPR dust between turbulent pipe grid device and bottom spraying layer and bottom spraying layer Vertical dimension is 0.2 to 0.8m.It is arranged at the CPR dust between adjacent two-layer spraying layer and between top one layer of spraying layer Vertical dimension be 0.2 to 1.0m.
Turbulent pipe grid device in the present embodiment includes: include the turbosphere pipeline of more than two-layer;Described turbosphere pipeline Including some pipes being arranged in parallel;Also include some link supports of being fixed in absorption tower by described turbosphere pipeline and some Support beam;Described turbosphere pipeline is staggeredly arranged in parallel between layers.Concrete structure refers to the reality described in background technology With new patent, do not repeat them here.
It addition, aforesaid right angled triangle also has a level right angle limit and a hypotenuse, described hypotenuse and this level right angle The angular range that limit is formed is 20 to 60 °.This angular range preferably 30 to 45 °.A length of the 0.3 of this level right angle limit to 0.6m。
Finally, the material of this CPR dust is chosen as rustless steel, is fixed in wet desulphurization absorption tower by welding manner Wall;Line with rubber carbon steel can also be selected, be threaded connection or pressure plate structure is fixed in the inwall of wet desulphurization absorption tower.
Understanding in conjunction with the structure described by above-described embodiment, the rectification for wet desulphurization absorption tower of the present utility model fills Put, turbulent pipe grid device and CPR dust are used in combination, it is achieved SO2Minimum discharge, pollute for China up-to-date coal-fired flue-gas Thing emission control requirement, considers the SO that existing wet desulphurization spray void tower systems face improves2Removal efficiency and spray laminating The problem that wall flue gas is escaped, and wet desulfurization system builds and showing of increasing considerably of operating cost under tightened up requirement Real problem.First flue gas by gas approach enter desulfurizing tower, the turbulent pipe grid device after holding liquid is able to rectification, turbulent flow and Fully carry out gas-to-liquid contact, optimize whole flow field, improve SO2Clearance;Again by CPR dust, it is therefore prevented that flue gas is adherent The phenomenon escaped, adds the efficiency of spraying layer, further increases spraying layer SO2Clearance.Two devices are combined into entirety Device uses, and reaches optimal effect, it is achieved wet desulfuration tower SO2Near-zero release.
Obviously, described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on Embodiment in this utility model, it is all that those of ordinary skill in the art are obtained under not making creative work premise Other embodiments, broadly fall into the scope of this utility model protection.

Claims (9)

1., for a fairing for wet desulphurization absorption tower, described wet desulphurization absorption tower is sequentially arranged along a flue gas flow path There are a gas approach and at least one spraying layer, it is characterised in that including:
The turbulent pipe grid device being arranged between gas approach and described spraying layer;
It is arranged at the multiple CPR dusts between described turbulent pipe grid device and spraying layer and/or between adjacent two-layer spraying layer;
Described CPR dust is the single-revolution body that central axis is gyroaxis of desulfuration absorbing tower in a wet process, the revolution of described revolving body Face is a right angled triangle, and described right angled triangle has a vertical straight arm of angle, and the laminating wet desulphurization of the described vertical straight arm of angle is inhaled Receive the inwall of tower.
2. the fairing for wet desulphurization absorption tower as claimed in claim 1, it is characterised in that be arranged at described turbulent flow The vertical dimension between CPR dust and bottom spraying layer between pipe grid device and bottom spraying layer is 0.2 to 0.8m.
3. the fairing for wet desulphurization absorption tower as claimed in claim 2, it is characterised in that be arranged at adjacent two The vertical dimension between CPR dust and top one layer of spraying layer between layer spraying layer is 0.2 to 1.0m.
4. the fairing for wet desulphurization absorption tower as claimed in claim 1, it is characterised in that described turbulent pipe grid fill Put and include: include the turbosphere pipeline of more than two-layer;Described turbosphere pipeline includes some pipes being arranged in parallel;Also include institute State some link supports and some support beams that turbosphere pipeline is fixed in absorption tower;Described turbosphere pipeline is between layers It is staggeredly arranged in parallel.
5. the fairing for wet desulphurization absorption tower as claimed in claim 1, it is characterised in that described right angled triangle Also having a level right angle limit and a hypotenuse, the angular range that described hypotenuse is formed with described level right angle limit is 20 to 60 °.
6. the fairing for wet desulphurization absorption tower as claimed in claim 5, it is characterised in that described angular range is 30 to 45 °.
7. the fairing for wet desulphurization absorption tower as described in claim 5 or 6, it is characterised in that described level is straight A length of 0.3 to the 0.6m of the arm of angle.
8. the fairing for wet desulphurization absorption tower as claimed in claim 1, it is characterised in that the material of described CPR dust Matter is rustless steel, is fixed in the inwall of wet desulphurization absorption tower by welding manner.
9. the fairing for wet desulphurization absorption tower as claimed in claim 1, it is characterised in that the material of described CPR dust Matter is line with rubber carbon steel, is threaded connection or pressure plate structure is fixed in the inwall of wet desulphurization absorption tower.
CN201620826107.6U 2016-08-01 2016-08-01 A kind of fairing for wet desulphurization absorption tower Active CN205850575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620826107.6U CN205850575U (en) 2016-08-01 2016-08-01 A kind of fairing for wet desulphurization absorption tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620826107.6U CN205850575U (en) 2016-08-01 2016-08-01 A kind of fairing for wet desulphurization absorption tower

Publications (1)

Publication Number Publication Date
CN205850575U true CN205850575U (en) 2017-01-04

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CN (1) CN205850575U (en)

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