CN205948656U - Two -way rectification drain device of two pH spray desulfurization tower - Google Patents
Two -way rectification drain device of two pH spray desulfurization tower Download PDFInfo
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- CN205948656U CN205948656U CN201620745753.XU CN201620745753U CN205948656U CN 205948656 U CN205948656 U CN 205948656U CN 201620745753 U CN201620745753 U CN 201620745753U CN 205948656 U CN205948656 U CN 205948656U
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- ring
- desulfurizing tower
- spray
- liquid disk
- tower
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Abstract
The utility model provides a two -way rectification drain device of two pH spray desulfurization tower, the drain of two pH subregion spray desulfurization tower washing liquids among the mainly used desulfurization process to and the interior rectification of rising the flue gas of desulfurizing tower. The device sets up between the height in the desulfurizing tower, the low pH spray set, including wall flow current -guiding ring and support liquid dish, wall flow current -guiding ring divides the pendular ring combination to form by upper and lower distribution arc ring and vibration, and upper and lower distribution arc ring shape fairly and dorsad symmetry sets up, the concave surface outwards, two ring outer fringes are installed respectively on the desulfurizing tower inner wall, two ring outer fringes offset and the connection to inner circle at the inner edge is connected the vibration divides the pendular ring, ask the liquid dish to set up under wall flow current -guiding ring to installing in the desulfurizing tower through the support frame, asking liquid dish upper portion uncovered, the bottom is connected to high pH thick liquid pond through slurry pipeline, hold in the palm and to run through the disk body in the liquid dish and be equipped with the multiunit and rise the gas pipe that flow equalizes. The device has the structure uniqueness, effectual, high, efficient, the little characteristics of absorption tower resistance of desulfurization of the effective liquid -gas ratio of flue gas washing of flow equalizing.
Description
Technical field：
This utility model provides a kind of multi-function double-way rectification hydrops pH value partitioning device, and specially a kind of pair of pH spray is de-
Sulfur tower biphase rectification drainage set, belongs to resource environment flue gases purification field.
Background technology：
Control with thermal power plant's atmosphere pollution and enter the minimum discharge stage, thermoelectricity SO 2 from fume concentration of emission controls
Require the 200mg/m from standard GB/T 13223-20113Near 35mg/m3Below.At present, the conventional limestone stone of application
Cream sulfur removal technology adopts the single pH value of single column spray to control, and desulfuration efficiency is generally 95%, relies on simple amplification conservative design,
Require through being difficult to meet new emission control, and there is construction and run uneconomical, the problems such as adaptability for working condition difference.
According to the further investigation of desulphurization mechanism and analysis, when in desulfurizing tower, slurry pH value controls when low interval, can carry
High liquid phase reactor speed, accelerates the dissolving of absorbent limestone, promotes the oxidation of by-product Gypsum Fibrosum and crystallize, after washing
The stable curing of sulfur dioxide and salt-forming conversions, promote desulfurization.Serosity can be improved when pH value controls to flue gas when high interval
The washing absorption speed of middle sulfur dioxide.Traditional single column list pH value controls can only look for a relative compromise between height pH
Span of control is it is impossible to thoroughly solve this contradiction.At present, the single column double circulation desulphurization tower of domestic use adopt conical bottom collect bowl with
Serosity deflector, flue gas is through-flow to block shock effect substantially, and flow transition is not smooth, distributing homogeneity is poor, leads to flue gas to lead to
Flow resistance power is big, and air and gas system energy consumption is significantly increased.It is thus desirable to exploitation one kind can high and low pH value zonal control be taken into account simultaneously,
Homogenizing flow field, to reduce the technology and equipment of flue gas flow passage resistance, is realized further desulfurization low energy consumption and is put forward effect, adapt to new environmental protection
Emission request.
Content of the invention：
A kind of unique combination unit of design of this utility model exploitation, is mainly used in sulfur removal technology double pH subregion sprays de-
Rise the rectification of flue gas in the drain of sulfur tower cleaning mixture, and desulfurizing tower.
Concrete technical scheme of the present utility model is as follows：
A kind of pair of pH spray desulfurizing tower biphase rectification drainage set, this device is arranged on the high and low pH spray in desulfurizing tower
Between device, including wall stream draining ring and support liquid disk；
Described wall stream draining ring is combined by upper and lower distribution arc ring and vibration point pendular ring, upper and lower distribution arc ring shape phase
When and be dorsad symmetrical arranged, outwardly, two ring outer rims are separately mounted on desulfurization inner wall of tower concave surface, and two ring outer rims offset and connect,
And the inner ring in inner edge connects described vibration point pendular ring；
Described support liquid disk is arranged on the underface of wall stream draining ring, and is arranged in desulfurizing tower by bracing frame, holds in the palm liquid disk
Open topped, bottom connects paramount pH slurry pool through serosity pipeline；
Run through disk body in support liquid disk and be provided with the equal flow tube of multigroup liter of gas, corresponding every group rises and be respectively provided with one above the equal flow tube of gas and prevent
Drench cap.
Design further of the present utility model is：
Port radius 0.1～0.5m little compared with 0.618R in upper and lower distribution arc ring radially projecting, outer port radius are fitted with desulfurizing tower phase
Join, the radian of upper and lower distribution arc ring is 1 °～30 °, and arc radius are 0.3 R～0.6R；Ask liquid disk suitable for reading and wall stream draining ring
Upper and lower distribution arc ring junction spacing be 0.382R ± 0.5m；Bore 0.1m～0.5m big compared with 0.618 R in support liquid disk；
The outer bore of vibration point pendular ring is suitable with bore in upper and lower distribution arc ring, interior bore 0.1～1.5m little compared with the bore holding in the palm liquid disk；Its
Middle R is desulfurizing tower radius.
Vibration point pendular ring carries tapered, with horizontal direction in 1 °～30 ° angles to below desulfurizing tower；Thickness be 0.02～
0.3mm；Width is 5～300mm.
It is located by connecting via limiting plate between upper and lower distribution arc ring；Support liquid panel surface adopts airflow design；Vibration point liquid
Ring inner ring is in dentation.
Upper and lower distribution arc ring and support liquid disk adopt corrosion and wear resistant alloy, glass steel material or anti-corrosion using carbon steel lining plating
Wear-resistant coating.Anti- pouring cap is in umbrella shape, slightly larger than liter gas equal flow tube bore.
In order to realize the serosity vibration dispersion of wall stream draining ring, vibration point pendular ring adopts elastic alloy or nonmetallic corrosion resistant resistance to
Wear down piece material；As thin metallic titanium alloy, two-phase alloyss steel, PC, PET, PFA etc. have certain elastomeric material to make.
Circular hole is had, the equal flow tube of liter gas of internal diameter adaptation is installed in sealing on circular hole, another in the equal flow tube of liter gas on support liquid disk
Anti- pouring cap is installed in one end, and the equal flow tube upper end of each liter of gas exceeds support liquid disk mouth 0.1～0.5m, rise the bore 50 of the equal flow tube of gas～
800mm, support liquid disk percent opening is 30%～85%.
This utility model has the advantages that compared to existing technology：
1st, desulfurizing tower is divided into two regions of height pH by this utility model, and can ensure that flue gas is through-flow, homogenizing flue gas stream
Field, the flue fog drip that promotion lower floor comes and particulate matter collision are reunited, and collection convergence high pH washing serosity is allowed to and low pH washs
Region serosity is effectively isolated.For separately reclaiming high ph-values washing liquid with low ph value washing liquid, there is unique structure, all flow effect
The features such as good, the effective liquid-gas ratio of flue gas washing is high, absorption tower resistance is little.
2nd, double pH subregion settings, absorption tower is divided into SO2High pH scrubbing section and low pH scrubbing section, this device can achieve same
The function of the high and low pH value subregion regulation and control of lower cigarette wind flow passage resistance is compared in absorption tower.
3rd, research checking shows, for SO2Low pH scrubbing section, a large amount of SO of washing absorption2While, regulated and controled by low ph value,
Absorbent limestone can be promoted thoroughly to dissolve rapidly, improve absorbent dissolving and the speed participating in chemical reaction, and be more conducive to
The oxidation of by-product Gypsum Fibrosum and crystallization separate out；For SO2High pH scrubbing section, is regulated and controled by high ph-values, realizes SO further2Put forward effect；Phase
Spray single pH control technology pair pH control than conventional single column and can achieve higher desulfuration efficiency under the conditions of lower liquid-gas ratio,
Desulfuration efficiency up to more than 99%, improves absorbent utilization rate close to 100%.
4th, simultaneously, of the present utility model using absorption tower will be greatly improved to input condition（Coal, absorbent, operating mode）'s
Adaptability, while improving desulfuration efficiency, homogenizing absorption flow field in tower, reduce flue gas flow passage resistance.
Brief description：
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of wall stream draining ring.
In Fig. 1：1- desulfurizing tower；2- high pH spray equipment；21- agitator；22- high pH slurry pool；23- oxidation spray gun；24-
High pH circulating pump；3- low pH scrubbing section；31- agitator；32- low pH slurry pool；33- oxidation spray gun；34- low pH circulating pump；4-
Wall stream draining ring；Arc ring is distributed on 41-；Arc ring is distributed under 42-；43- limiting plate；44- vibration point pendular ring；5- holds in the palm liquid disk；51- is high
PH serosity draws pipeline；52- bracing frame；53- rises the equal flow tube of gas；54- anti-pouring cap；6- one-level demister；Bis- grades of demisters of 7-.
Fig. 3 is existing single column double circulation desulphurization tower circular cone.
In Fig. 3：1- desulfurizing tower；2- high pH spray equipment；21- agitator；22- high pH slurry pool；23- oxidation spray gun；24-
High pH circulating pump；3- low pH scrubbing section；31- agitator；32- low pH slurry pool；33- oxidation spray gun；34- low pH circulating pump；4-
Tower wall guide ring；5- conical trays；51- high pH serosity draws pipeline；52- bracing frame；6- one-level demister；Bis- grades of demistings of 7-
Device.
Specific embodiment：
Below in conjunction with the accompanying drawings this utility model is further elaborated：
Embodiment one：
The concrete structure of double pH spray desulfurizing tower biphase rectification drainage sets is as follows：
The double pH desulphurization system of this utility model single column：Including the high pH spray equipment 2 being arranged in desulfurizing tower 1 and low pH spray
Shower device 3, connecting line and high pH serosity suspension oxidation device, low pH serosity suspension oxidation device, high pH slurry pool 22 and low pH
Slurry pool 32.
High pH spray equipment 2 and low pH spray equipment 3 are equipped with Multi-layer sprinkling head；High and low pH serosity suspension oxidation device bag
Include agitator, oxidation spray gun, filter screen and container etc..
Double pH desulphurization system features are to wash flue gas subregion, and the first order being arranged in lower floor is low pH scrubbing section, pH control
Scope 4-5.4 processed；The second level being arranged in upper strata is high pH scrubbing section, pH span of control 5.4-6.5.
As shown in figure 1, the double pH spray desulfurizing tower biphase rectification drainage set of this utility model be arranged on height in desulfurizing tower,
Between low pH spray equipment, including wall stream draining ring 4 and support liquid disk 5；Wall stream draining ring 4 is by upper distribution arc ring 41, lower distribution arc
Ring 42 and a vibration point pendular ring 44 combine, and upper and lower distribution arc ring shape quite and is dorsad symmetrical arranged, concave surface outwardly, two rings
Outer rim is separately mounted on desulfurization inner wall of tower, and two ring outer rims offset and connect, and the inner ring in inner edge connects described vibration point liquid
Ring 44, is located by connecting via limiting plate 43 between upper and lower distribution arc ring.
Support liquid disk 5 is arranged on the underface of wall stream draining ring, and is arranged in desulfurizing tower by bracing frame 52, holds in the palm liquid disk 5
Open topped, bottom connects paramount pH slurry pool 22 through high pH serosity introduction pipe 51；
Run through disk body in support liquid disk 5 and be provided with the equal flow tube 53 of multigroup liter of gas, corresponding every group rises and be respectively provided with above the equal flow tube of gas 53
One anti-pouring cap 54.Support liquid disk 5 surface adopts airflow design, and anti-pouring cap 5 is in umbrella shape, slightly larger than the equal flow tube of liter gas 53 bore.
Specifically using above having circular hole, the equal flow tube of liter gas of internal diameter adaptation is installed in sealing on circular hole to support liquid disk 5, another in the equal flow tube of liter gas
Anti- pouring cap 54 is installed in one end, and each liter of gas equal flow tube 53 upper end exceeds support liquid disk mouth 0.1～0.5m, rise the bore 50 of the equal flow tube of gas～
800mm, support liquid disk 5 percent opening is 30～85%.
As shown in Fig. 2 upper and lower distribution arc ring radially projecting in port radius 0.1～0.5m little compared with 0.618R, outer port radius with
Desulfurizing tower is adapted, and the radian of upper and lower distribution arc ring is 10 °（1 °～30 °）, arc radius are 0.3 R～0.6R；Support liquid
The spacing of the disk upper and lower distribution arc ring junction with wall stream draining ring suitable for reading is 0.382R ± 0.5m；Support liquid disk in bore relatively
Big 0.1m～the 0.5m of 0.618 R；The vibration point outer bore of pendular ring 44 is suitable with bore in upper and lower distribution arc ring, and interior bore relatively holds in the palm liquid
Little 0.1～the 1.5m of bore of disk；Wherein R is desulfurizing tower radius.
Vibration point pendular ring 44 carries tapered, with horizontal direction in 15 ° to below desulfurizing tower（1 °～30 °）Angle；Thickness is
0.02～0.3mm；Width is 5～300mm（This width is the bus of taper）, vibration point pendular ring inner ring is in dentation, for tearing
Drop.
Upper and lower distribution arc ring and support liquid disk adopt corrosion and wear resistant alloy, glass steel material or anti-corrosion using carbon steel lining plating
Wear-resistant coating.
In order to realize the serosity vibration dispersion of wall stream draining ring, vibration point pendular ring adopts elastic alloy or nonmetallic corrosion resistant resistance to
Wear down piece material；As thin metallic titanium alloy, two-phase alloyss steel, the material such as PC, PET, PFA are made.
The concrete function of the double pH spray desulfurizing tower biphase rectification drainage set each several part of this utility model is as follows：
1st, the serosity that wall stream draining ring is used for for upper strata spraying wall built-up deflects from absorption tower tower wall, imports to support liquid disk, simultaneously
Wall built-up liquid film is assigned on vibration point pendular ring, is split by vibrating the serosity that wall built-up confluxes and tearing again to cut by vibration point pendular ring
It is dispersed into drop for flue gas washing, to improve the effective liquid-gas ratio of desulfurization.
2nd, vibration point pendular ring is to be connected to the alloy thin layer that strip tooth mouth is opened in the inner side that upper and lower two arc rings engage junctions,
Inner generation under the impact of air-flow and spray droplet is shaken, and the serosity under along wall stream is torn into scattered drop.Vibration
The material dividing pendular ring can be covered antiseptic wearable coat, can also be adopted anticorrosive anti-wear non-metallic material using alloy, carbon steel（As
Fiberglass）, vibration source is that the impact of air-flow, liquor stream or whereabouts serosity causes.Unique streamline construction design of wall stream draining ring makes
The serosity that collision must be in contact with it produces the effect of similar " Folium Nelumbinis " effect, is gathered into rapidly liquid pearl and is rolled off surface, and evaporates water
Vapour condense assemble also provide self-cleaning function for its surface, solve the serosity pickup scale problems of prior art it is achieved that
The self-cleaning function of this structure.
3rd, hold in the palm liquid disk：In alms bowl body streamline construction, open topped, for collecting the serosity that high pH scrubbing section gets off, bottom
Connect serosity pipeline, the high pH serosity collected derived the high pH stock tank outside absorption tower, thus with pH stock tank low in absorption tower
It is effectively isolated, realize double pH value control partition function.The Streamline Design of support liquid disk is conducive to round and smooth for flue gas from below to up mistake
Cross and shunt, reduce the through-flow resistance of flue gas to greatest extent.Airflow design any surface finish simultaneously, has the work(of " Folium Nelumbinis " effect
Can, the slurry droplet that flue gas carries collides its surface and is gathered into rapidly liquid pearl and tumbles, and does not stain, and also can be wet using saturation
The condensing drip that fume gas condensation separates out carries the serosity of possible collision adhesion to flue gas and fine grained is carried out, and realizes automatically cleaning
Function.
4th, the volume of support liquid disk is upper strata sprayed slurry 0～100S residence time volumes, support liquid tray bottom setting high pH slurry
Liquid draws pipeline, and caliber is needed to be mated with support liquid disk volume and avoids holding in the palm liquid disk serosity overflow.Support liquid disk in run through disk body be provided with many
Group rises the equal flow tube of gas, through-flow from pipe beneficial to flue gas, and is respectively provided with an anti-pouring cap above corresponding every group of liter equal flow tube of gas, reduces
The resistance that flue gas rises.
5th, adopt this utility model, alms bowl type drip tray and wall stream draining ring combinative structure with rising the equal flow tube of gas make to absorb
The blocking effect impact of tower section is lower, increased flue gas flow area in tower, and flow field and concentration field effect of optimization are more preferably, through-flow
Resistance is less.
Test case one：
Certain processes exhaust gas volumn 50,000 m3/ h desulfurization test device, absorption tower spray number of plies configuration is identical, has carried out following several
The test of situation is compared；
Situation one：Void tower, 3 layers of spray, single pH value controls；
Situation two：Using invention biphase rectification hydrops pH value partitioning device（Band rises the equal flow tube of gas）, realize pH value subregion, dress
Put top high pH spray and set one layer, the low pH in lower section spray setting two-layer.
Situation three：Existing tradition single column double circulation desulphurization tower conical bottom is shown using Fig. 3 and collects bowl and serosity deflector
Structure（Using conical trays, tower wall guide ring is plank frame）, remaining experimental condition is similar with situation 2.
Experimental test result such as following table：
As seen from the above table, the rectification drainage set of this utility model design has flue gas washing effective liquid-gas ratio height, desulfurization
Efficiency high, absorption tower resistance is little, improve absorption tower section flow field, reduce the feature overcoming cigarette wind flow passage resistance energy consumption.
Claims (10)
1. a kind of pair of pH spray desulfurizing tower biphase rectification drainage set, this device is arranged on the high and low pH spray dress in desulfurizing tower
Between putting it is characterised in that：Including wall stream draining ring and support liquid disk；
Described wall stream draining ring is combined by upper and lower distribution arc ring and a vibration point pendular ring, upper and lower distribution arc ring shape quite and
Dorsad it is symmetrical arranged, outwardly, two ring outer rims are separately mounted on desulfurization inner wall of tower concave surface, and two ring outer rims offset and connect, and
The inner ring of inner edge connects described vibration point pendular ring；
Described support liquid disk is arranged on the underface of wall stream draining ring, and is arranged in desulfurizing tower by bracing frame, holds in the palm liquid disk top
Uncovered, bottom connects paramount pH slurry pool through serosity pipeline；
Run through disk body in support liquid disk and be provided with the equal flow tube of multigroup liter of gas, corresponding every group rises and be respectively provided with an anti-pouring above the equal flow tube of gas
Cap.
2. according to claim 1 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Have on support liquid disk
Circular hole, the equal flow tube of liter gas of internal diameter adaptation is installed in sealing on circular hole, installs anti-pouring cap, each liter of gas in the other end of the equal flow tube of liter gas
All flow tube upper end exceeds support liquid disk mouth 0.1～0.5m, and lower end is concordant with support liquid disk body, rises the bore 50～800mm of the equal flow tube of gas,
Support liquid disk percent opening is 30-85%.
3. according to claim 2 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Anti- pouring cap is in umbrella
Shape, slightly larger than liter gas equal flow tube bore.
4. according to claim 2 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Upper and lower distribution arc
Port radius 0.1～0.5m little compared with 0.618R in ring radially projecting, outer port radius are adapted with desulfurizing tower, upper and lower distribution arc ring
Radian is 1 °～30 °, and arc radius are 0.3 R～0.6R；Liquid disk is suitable for reading is connected with the upper and lower distribution arc ring of wall stream draining ring for support
The spacing at place is 0.382R ± 0.5m；Bore 0.1m～0.5m big compared with 0.618 R in support liquid disk；The outer bore of vibration point pendular ring with
In upper and lower distribution arc ring, bore is suitable, interior bore 0.1～1.5m little compared with the bore holding in the palm liquid disk；Wherein R is desulfurizing tower radius.
5. according to claim 4 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Vibration point pendular ring to
Carry tapered below desulfurizing tower, be in 1 °～30 ° angles with horizontal direction；Thickness is 0.02～0.3mm；Width is 5～300mm.
6. according to claim 2 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Upper and lower distribution arc
It is located by connecting via limiting plate between ring.
7. according to the arbitrary described pair of pH spray desulfurizing tower biphase rectification drainage set of claim 2-6 it is characterised in that：Support liquid disk
Surface adopts airflow design.
8. according to claim 7 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：In vibration point pendular ring
Circle is in dentation.
9. according to claim 1 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Upper and lower distribution arc
Ring and support liquid disk adopt corrosion and wear resistant alloy, glass steel material or serve as a contrast plating antiseptic wearable coat using carbon steel.
10. according to claim 1 double pH spray desulfurizing tower biphase rectification drainage sets it is characterised in that：Vibration point pendular ring
Made using thin metallic titanium alloy, two-phase alloyss steel, PC, PET or PFA elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745753.XU CN205948656U (en) | 2016-07-15 | 2016-07-15 | Two -way rectification drain device of two pH spray desulfurization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745753.XU CN205948656U (en) | 2016-07-15 | 2016-07-15 | Two -way rectification drain device of two pH spray desulfurization tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205948656U true CN205948656U (en) | 2017-02-15 |
Family
ID=57971839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620745753.XU Withdrawn - After Issue CN205948656U (en) | 2016-07-15 | 2016-07-15 | Two -way rectification drain device of two pH spray desulfurization tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205948656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944551A (en) * | 2016-07-15 | 2016-09-21 | 国电环境保护研究院 | Bidirectional flow straightening and liquid guiding device of double pH spray desulfurizing tower |
| CN109432996A (en) * | 2018-12-26 | 2019-03-08 | 常州市长江热能有限公司 | A kind of desulfurizing tower |
| CN109432996B (en) * | 2018-12-26 | 2024-04-26 | 常州市长江热能有限公司 | Desulfurizing tower |
-
2016
- 2016-07-15 CN CN201620745753.XU patent/CN205948656U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944551A (en) * | 2016-07-15 | 2016-09-21 | 国电环境保护研究院 | Bidirectional flow straightening and liquid guiding device of double pH spray desulfurizing tower |
| CN105944551B (en) * | 2016-07-15 | 2018-06-15 | 国电环境保护研究院 | Double pH spray desulfurizing towers biphase rectification drainage sets |
| CN109432996A (en) * | 2018-12-26 | 2019-03-08 | 常州市长江热能有限公司 | A kind of desulfurizing tower |
| CN109432996B (en) * | 2018-12-26 | 2024-04-26 | 常州市长江热能有限公司 | Desulfurizing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20180615 |