CN104307352A - Efficient desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure - Google Patents

Efficient desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure Download PDF

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Publication number
CN104307352A
CN104307352A CN201410657519.7A CN201410657519A CN104307352A CN 104307352 A CN104307352 A CN 104307352A CN 201410657519 A CN201410657519 A CN 201410657519A CN 104307352 A CN104307352 A CN 104307352A
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CN
China
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tower
ring
plate
effect
carry
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CN201410657519.7A
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Chinese (zh)
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高继贤
李静
阎冬
陈泽民
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上海龙净环保科技工程有限公司
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Priority to CN201410657519.7A priority Critical patent/CN104307352A/en
Publication of CN104307352A publication Critical patent/CN104307352A/en

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Abstract

The invention provides an efficient desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure. The structure comprises a tower body, wherein the tower body is sequentially provided with a flue gas outlet, a flue gas outlet flow guide grate, a demister, a plurality of spraying layers, efficiency improvement rings, a flue gas inlet flow guide ring, a flue gas inlet and a desulfurization liquid tank from top to bottom, each spraying layer is provided with one efficiency improvement ring used for gathering flue gas, and a pH adjuster, an oxidation air pipeline and a jet flow stirrer are arranged in the desulfurization liquid tank. The efficiency improvement rings can be of the structures of protection efficiency improvement plates and supporting plates below the spraying layers and can also be annular arc-shaped plate structures arranged as high as the sprayings layers respectively. A wet type electric dust remover can be further arranged above the tower body to carry out deep dust removal. Through the desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure, the removal efficiency of limestone and gypsum wet method desulfurization can be further improved, the concentration of dust is reduced, and investment and occupied space are saved.

Description

A kind of carrying in effect ring and tower of high-efficiency desulfurization purification carries efficient construction

Technical field

The present invention relates to technical field of air pollution control, espespecially a kind of carrying in effect ring and tower of high-efficiency desulfurization purification carries efficient construction.

Background technology

Along with implementing of new environmental protection policy, the SO of thermal power plant's airborne release 2concentration reduces further.At present, thermal power plant has started generally to implement the SO by airborne release 2concentration is reduced to 50mg/Nm 3, and under the policy of ultra-clean discharge promotes, the thermal power plant in east and mid portion area has also started demonstrate and promote the SO of airborne release 2require that concentration is reduced to 35mg/Nm 3.SO before comparing 2concentration of emission is 100mg/Nm 3requirement, new standard means that the desulfuration efficiency of each thermal power plant needs significantly to promote.Consider SO in power plants discharge flue gas 2concentration general all at 5000mg/Nm 3below, therefore the desulfuration efficiency of 98%-98.5 can make most desulfurizer meet the requirement of original discharge standard, and the desulfuration efficiency of 98.5% also becomes the higher limit of conventional limestone-gypsum desulphurization system substantially.

After adopting new discharge standard, the desulfuration efficiency of thermal power plant generally all reaches more than 98.5% even close to 99%; And under the standard-required of ultra-clean discharge, most desulfurizing tower need realize the desulfuration efficiency of 99%-99.5%, is not difficult to find out, high-efficiency desulfurization technology has become the new trend of development.

In order to break through the desulfuration efficiency higher limit of 98.5%, and the high desulfurization efficiency of less proposition before realizing, limestone-gypsum desulphurization system takes some measures, common method be the mode of employing two or similar two absorption towers series connection to reach high desulfurization efficiency, comprise the technology such as single tower Two-way Cycle, double tower Two-way Cycle.Though desulfuration efficiency can be improved to a certain extent like this, but the increase bringing investment and take up an area, reduce the feasibility much without the project implementation in enough places.

Further, new environmental protection policy is simultaneously to fine dust, SO 3the reduction of discharging of the PM2.5 such as aerosol, heavy metal particles pollutant has also put on schedule, thus can also reduce dust concentration further while high-efficiency desulfurization, alleviate the study hotspot that " gypsum rain " has become air environmental protection industry (epi) personage.

To sum up, exploitation saves land, invests low high-efficiency desulfurization purifier and technology, is the major issue faced now.

Summary of the invention

The object of this invention is to provide carrying in effect ring and tower of a kind of high-efficiency desulfurization purification and carry efficient construction, the removal efficiency of Limestone-gypsum Wet Flue Gas Desulfurization Process can be improved further, reduce dust concentration, and investment reduction and floor space.

Technical scheme provided by the invention is as follows:

An efficient construction is carried in carrying in effect ring and tower of high-efficiency desulfurization purification, comprises tower body;

Described tower body is provided with exhanst gas outlet, exhanst gas outlet airflow fence, demister, spraying layer from top to bottom successively, carries effect ring, smoke inlet guide ring, smoke inlet, desulfurization slurry pond, is provided with pH-meter, oxidation air pipeline and jet mixing in described desulfurization slurry pond;

Wherein, described spraying layer is multilayer, and every layer of described spraying layer place is equipped with and carries effect ring for gathering described in flue gas, described in carry effect ring and comprise following structure:

Spraying layer place every layer described, described in carry effect ring and be positioned at the below of described spraying layer; Described carry effect ring comprise upper strata carry effect plate and the gripper shoe that supports of effect plate is put forward to described by lower floor; Described to carry effect plate be annular plate, and arranges according to the inwall of described tower body;

Or;

Spraying layer place every layer described, described in carry effect ring be positioned at the position contour with described spraying layer; Described effect ring of carrying comprises upper and lower two-layer ring-type arc, this two-layer ring-type arc arranges according to the inwall of tower body and is divided into the both sides up and down of spraying layer, the first end of described ring-type arc is connected with tower body inwall, and the second end is connected with spraying layer, fixes to carry out installation to spraying layer every layer described; On upper and lower two-layer ring-type arc, cloth is porose.

Preferably, when described carry effect ring be arranged at below described spraying layer carrying effect ring time, described in carry effect plate be a hang plate, described in carry one end of being connected with tower body inwall of effect plate be its first end, the other end is its second end, described in carry effect plate first end higher than the second end;

The described angle carrying effect plate and tower body inwall is θ 1, 90 ° of < θ 1< 120 °.

Preferably, put forward the length of effect plate in described tower body radial direction described in multilayer, successively decrease successively to the superiors from orlop.

Preferably, described gripper shoe comprises equally distributed polylith and divides support plate;

Described point of support plate is a hang plate, and one end that described in every block, point support plate is connected with tower body inwall is its first end, and the other end is its second end, and the first end of described point of support plate is lower than the second end;

And the second end of described point of support plate upwards extends until imitate plate be connected with described carrying, and and described carry imitating between plate form an angle theta 2, 30 ° of < θ 2< 60 °.

Preferably, identical with described in the layer point of length of support plate in described tower body radial direction, and in gripper shoe described in multilayer, the length of its point of support plate is successively decreased from orlop successively to the superiors.

Preferably, when described carry effect ring for carry described in the contour setting of described spraying layer imitate ring time, bilevel described ring-type arc from its first end to the second end rounding off, and arches upward to the direction away from described spraying layer;

Bilevel described ring-type arc is symmetrical arranged, and curved angle is θ 3, 0 °≤θ 3< 90 °.

Preferably, the carrying of described high-efficiency desulfurization purification is carried efficient construction in effect ring and tower and is comprised further:

Wet electrical dust precipitator, it is located between described demister and described exhanst gas outlet airflow fence;

Expanding uniform device, it is located between described demister and described wet electrical dust precipitator.

Preferably, described expanding uniform device comprises multiple coaxial taper cone barrel, and the bottom bore of each described taper cone barrel is little, and top bore is large.

Preferably, described smoke inlet guide ring is tilted-putted oval orifice plate, its near the side of described smoke inlet higher than its side away from described smoke inlet; Described oval orifice plate is opened the identical airflow hole in multiple aperture, and the distribution density of multiple described airflow hole on described oval orifice plate is gradually fallen to the side away from described smoke inlet from the side near described smoke inlet;

Preferably, the gas channel direction of described exhanst gas outlet is different from the air flow direction in tower body; Described exhanst gas outlet airflow fence comprises perpendicular staggered straight plate, described straight plate vertical interlaced forms multiple grate opening flow through for air-flow, and the perforated area of multiple described grate opening is cumulative to the side away from described exhanst gas outlet from the side near described exhanst gas outlet.

By high-efficiency desulfurization provided by the invention purify carry effect ring and tower in carry efficient construction, following at least one beneficial effect can be brought:

1. desulfuration efficiency is high, smoke flow resistance is little.The present invention arranges in the position of every layer of spraying layer and carries effect ring, can gather flue gas, reduces the flow resistance of flue gas.Particularly, the invention provides the two kinds of structures carrying effect ring: (1) carries effect ring in the arranged beneath of every layer of spraying layer; Or (2) are arranged with the tower wall place of every layer of spraying layer equal height and are carried effect ring, effectively block short circuit flue gas, make it flow to central area.And the width (length in tower body radial direction) of multi-layer lifting effect ring reduces from bottom to top successively, such design not only can ensure that lime stone slurry is more more assembled toward the tower heart toward dirty, thus fully mixes with flue gas; In addition, flue gas proposes the choked flow of effect ring through the bottom, can gather to the central area of tower body, and the flue gas at tower wall place reduces and flue gas starts up evenly to spread gradually from tower central area.And carry effect ring width from bottom to up and reduce gradually to save material, reduce costs.And the second proposes the ring-type arc design of effect ring, not only can reduce flue gas resistance, also spraying layer can be folded between upper and lower two-layer arc, the supporting construction as spraying layer uses.To sum up, overall structure of the present invention can effectively prevent desulfuration efficiency from reducing, and ensures high desulfurization efficiency.

2. flue gas even distribution is good, dust removal efficiency is high.(1) smoke inlet guide ring is oval orifice plate, identical but the hole of Density Distribution inequality, n aperture is opened on orifice plate top, from the side near smoke inlet to the side away from smoke inlet on oval ring flat-plate, perforated area on ring flat-plate diminishes gradually, and the distribution density that also can be understood as hole reduces gradually.Because flue gas is after smoke inlet inflow, the power that pours flowed into along with flue gas and inertia force make the region smoke distribution away from smoke inlet in tower body more, region smoke distribution near smoke inlet in tower body is less, the structure of above-mentioned smoke inlet guide ring effectively can improve the situation of this smoke distribution inequality, and water conservancy diversion flue gas is dispersed on whole tower body cross section.(2) exhanst gas outlet airflow fence is that horizontal vertical plate staggered (straight plate vertical interlaced) forms, flue gas is discharged by the grate opening of straight plate staggered, staggered straight plate is more the closer to exhanst gas outlet direction quantity, the grid opening area formed less (namely the perforated area of multiple grate opening is cumulative to the side away from exhanst gas outlet from the side near exhanst gas outlet), this structure effectively prevent because exhanst gas outlet direction changes the situation about reducing away from exhanst gas outlet direction place flue gas caused, the more uniformity of flue gas in the inner or tower of strong guarantee wet electrical dust precipitator electric field, thus make full use of the dust removing effects that electric field reaches high.(3) expanding uniform device is made up of multiple coaxial taper cone barrel, and the bottom bore of each taper cone barrel is little, top bore is large, and this structure can solve sets up wet electrical dust precipitator and phenomenon that the flue gas central area that causes is concentrated through expanding.

3. desulphurizing and dust-removing integral, reduces floor space.The top of desulfurizing tower arranges that wet electrical dust precipitator can effectively remove PM2.5, fine dust, heavy metal particles etc., and owing to not setting up other tower bodies or the outer wet electrical dust precipitator of tower as prior art, thus decreases the floor space of equipment.

Accompanying drawing explanation

Below by clearly understandable mode, accompanying drawings preferred embodiment, is further described carry above-mentioned characteristic, technical characteristic, advantage and the implementation thereof of carrying efficient construction in effect ring and tower of high-efficiency desulfurization purification.

Fig. 1 is that carrying in effect ring and tower of purifying of the high-efficiency desulfurization without wet electrical dust precipitator of the present invention carries the structural representation of a kind of embodiment of efficient construction;

Fig. 2 is that carrying in effect ring and tower of high-efficiency desulfurization of the present invention purification carries the structural representation of a kind of embodiment of efficient construction;

Fig. 3 be of the present invention the first carry a kind of structure top view of embodiment of effect ring;

Fig. 4 is the structural facades figure that the second of the present invention puies forward a kind of embodiment of effect ring;

Fig. 5 is the top view of Fig. 4;

Fig. 6 is the top view of a kind of embodiment of smoke inlet guide ring of the present invention;

Fig. 7 is the top view of a kind of embodiment of exhanst gas outlet airflow fence of the present invention;

Fig. 8 is the top view of a kind of embodiment of expanding uniform device of the present invention;

Fig. 9 is the stereogram of the taper cone barrel of Fig. 8;

Drawing reference numeral illustrates:

1, tower body; 2, smoke inlet; 3, smoke inlet guide ring; 301, airflow hole; 4, the first carries effect ring; 401, effect plate is carried; 402, gripper shoe; 4 ', the second carries effect ring; 401 ', ring-type arc; 402 ', hole; 5, spraying layer; 6, demister; 7, expanding uniform device; 701, taper cone barrel; 8, wet electrical dust precipitator; 9, exhanst gas outlet airflow fence; 901, straight plate; 902, grate opening; 10, exhanst gas outlet; 11, desulfurization slurry pond; 12, pH-meter; 13, oxidation air pipeline; 14, jet mixing; θ 1, carry effect plate and the angle of tower body inwall; θ 2, carry effect plate and the angle of gripper shoe; θ 3, ring-type arc curved angle.

Detailed description of the invention

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.

For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".

The carrying of high-efficiency desulfurization provided by the invention purification is carried efficient construction in effect ring and tower and is applied in high-efficiency desulfurization cleaning system, in an embodiment of the present invention, carry the structure diversification of effect ring, the first that can adopt as shown in Figure 3 carries effect ring 4, also the second as shown in Figure 4 can be adopted to carry effect ring 4 ', other structures can also be adopted, gather flue gas as long as can play, reduce the effect of smoke flow resistance.

In embodiments of the invention one, as Fig. 1 be a kind of high-efficiency desulfurization without the need to dedusting purify carry effect ring and tower in carry efficient construction, which employs the first carry effect ring 4.Carrying in effect ring and tower of high-efficiency desulfurization purification is carried efficient construction and is comprised tower body 1, tower body 1 is provided with exhanst gas outlet 10, exhanst gas outlet airflow fence 9, demister 6, spraying layer 5 from top to bottom successively, the first carries effect ring 4, smoke inlet guide ring 3, smoke inlet 2 and desulfurization slurry pond 11, is provided with pH-meter 12, oxidation air pipeline 13 and jet mixing 14 in desulfurization slurry pond 11.

Flue gas enters in tower by the smoke inlet 2 under being tilted to, because the flue gas entered can make the exhaust gas volumn away from smoke inlet place in tower body large under effect of inertia, therefore above smoke inlet, arrange the smoke inlet guide ring 3 of inclination, its incline direction is consistent with the incline direction of smoke inlet, makes near the side of smoke inlet higher than its side away from smoke inlet.Reference as shown in Figure 6, smoke inlet guide ring 3 is oval orifice plate, orifice plate top opens that multiple (number in hole is more herein, available n expression) the identical airflow hole 301 in aperture, this airflow hole can be the hole of circular hole or elliptical aperture or other shapes, and multiple airflow hole uneven distribution, the distribution density of multiple airflow hole on oval orifice plate is gradually fallen (arrow figure represents smoke inlet direction) from the side near smoke inlet to the side away from smoke inlet, what also can be understood as on oval orifice plate is less at the position perforated area more away from smoke inlet direction, can effectively water conservancy diversion flue gas be dispersed on whole tower body cross section.It should be noted that Fig. 6 is only schematic diagram, concrete perforated area needs to carry out different adjustment according to actual items, perforated area >=60% on general whole guide ring, reaches the object reducing flue gas resistance.

Above smoke inlet guide ring 3, arrange that the first carries effect ring 4, carry effect ring in the arranged beneath of every layer of spraying layer 5.The first carries effect ring is hollow ring, and what comprise upper strata carries effect plate 401 and lower floor to putting forward the gripper shoe 402 that supports of effect plate 401.Carrying effect plate is annular plate, and arranges according to the inwall of tower body, and carrying effect plate 401 is a hang plate, and carrying one end that effect plate is connected with tower body inwall is its first end, and the other end is its second end, carry imitate plate first end higher than the second end; The angle carrying effect plate and tower body inwall is θ 1(can refer to Fig. 2), 90 ° of < θ 1< 120 °.In order to realize the stable support to carrying effect plate, gripper shoe comprises equally distributed polylith and divides support plate; With reference to Fig. 1, gripper shoe 402 is shown in the figure is one piece of point of support plate, can find out by figure, and a point support plate is a hang plate, and one end that every block divides support plate to be connected with tower body inwall is its first end, and the other end is its second end, and the first end of point support plate is lower than the second end; And the second end of point support plate upwards extends until imitate plate 401 and be connected with carrying, and and carry imitating between plate 401 and form an angle theta 2(can refer to Fig. 2), 30 ° of < θ 2< 60 °.The width (length in tower body radial direction) of multi-layer lifting effect plate, successively decreases from orlop successively to the superiors; Divide the width of support plate (length in tower body radial direction) identical with layer, and in Multi-layer supporting plate, the width of its point of support plate successively decrease successively to the superiors from orlop.The quantity of gripper shoe designs according to actual requirement of engineering, and for 300,000 fired power generating unit projects, gripper shoe generally needs more than 20 pieces.Carry effect plate and can adopt smooth circle or the various shape such as waveform, indentation near the edge at tower heart place.Carry effect ring and can select ordinary carbon steel material.The layout carrying effect ring effectively blocks short circuit flue gas, makes it flow to central area.And the width (length in tower body radial direction) of multi-layer lifting effect ring reduces from bottom to top successively, with reference to Fig. 1, such design not only can ensure that lime stone slurry is more more assembled toward the tower heart toward dirty, thus fully mixes with flue gas; In addition, propose the choked flow of effect ring through the bottom, flue gas is gathered to tower central area, and tower wall flue gas reduces and flue gas starts up evenly to spread gradually from tower central area, reduce flue gas resistance and also reach good resistance flowing effect, and carry effect ring width and reduce gradually also can save material.

Carry above effect ring 4 at the first and arrange spraying layer 5, the spraying layer quantity in each purifying column determines according to the inlet flue gas sulfur content of Practical Project and desulfuration efficiency.

Flue gas upwards flows in tower body 1 always, after being rinsed, also needs to remove water smoke and larger drop through demister 6 by spraying layer 5.Now if dust content is within required standard, then flue gas can directly be discharged.Because exhanst gas outlet generally will change the flow direction of air-flow, exhanst gas outlet 10 is as shown in Figure 1 for being horizontally disposed with, the flow direction bottom-up from flue gas in tower body is different, in order to ensure the uniform gas flow in tower body in this case, at smoke outlet design exhanst gas outlet airflow fence 9 (concrete structure is shown in Fig. 7), exhanst gas outlet airflow fence 9 for straight plate 901 anyhow vertical interlaced form, flue gas is discharged by the grate opening 902 of staggered straight plate composition, staggered straight plate is more in the quantity the closer to exhanst gas outlet 10, the grate opening area formed is less, also can be understood as, the perforated area of multiple grate opening 902 from the side near exhanst gas outlet 10 to the side away from exhanst gas outlet 10 cumulative (Fig. 7, arrow is depicted as exhanst gas outlet direction).This device effectively prevents because exhanst gas outlet direction changes reducing away from exhanst gas outlet direction place flue gas of causing, more the uniformity of flue gas in the inner or tower of strong guarantee electric field.Finally, the flue gas after purification is discharged by exhanst gas outlet 10.

In desulfurization slurry pond 11 in tower body, be provided with the combination of pH-meter 12, oxidation air pipeline 13 and jet mixing 14, its concrete structure is see patent CN201020188307.6, and this robust construction ensure that the efficient oxidation in tower absorbs.

In embodiments of the invention two, as Fig. 2 be a kind of high-efficiency desulfurization containing dust arrester purify carry effect ring and tower in carry efficient construction, tower body 1 is provided with exhanst gas outlet 10, exhanst gas outlet airflow fence 9, wet electrical dust precipitator 8, expanding uniform device 7, demister 6, spraying layer 5 from top to bottom successively, the first carries effect ring 4, smoke inlet guide ring 3, smoke inlet 2 and desulfurization slurry pond 11, is provided with pH-meter 12, oxidation air pipeline 13 and jet mixing 14 in desulfurization slurry pond.

The gas cleaning direction of the present embodiment is similar to embodiment one, unlike, need to arrange wet electrical dust precipitator 8 by expanding.In the present embodiment, flue gas removes after water smoke and larger drop through demister 6, also needs to carry out degree of depth dedusting.In order to reduce tower height, the radial dimension of general design wet electrical dust precipitator 8 is greater than the desulfurizing tower of bottom, thus needs to carry out expanding setting.Because flue gas flows into the larger wet electrical dust precipitator of upper dimension from the desulfurizing tower that lower dimension is less, in order to ensure being uniformly distributed of flue gas, expanding uniform device 7 must be set.See the concrete structure shown in Fig. 8, Fig. 9, expanding uniform device 7 comprises multiple coaxial taper cone barrel 701, and the bottom bore of each taper cone barrel is little, top bore large, thus realization guiding flue gas evenly spreads.Flue gas is by discharging after wet electric precipitation afterwards.

In other embodiments of the invention, carrying effect ring can also adopt the second as shown in Figure 4, Figure 5 to carry effect ring 4 '.Particularly, at every layer of spraying layer 5 place, the second is carried effect ring 4 ' and is positioned at the position contour with spraying layer; The second is carried effect ring 4 ' and is comprised upper and lower two-layer ring-type arc 401 ', this two-layer ring-type arc arranges according to the inwall of tower body and is divided into the both sides up and down of spraying layer 5, spraying layer 5 is also located in centre position by the two splicing, fixes to carry out installation to spraying layer every layer described.The first end of ring-type arc is connected with tower body inwall, and the second end is connected with spraying layer; Upper and lower two-layer ring-type arc opens several hole 402 ' respectively, and this hole can be the hole of circular hole or elliptical aperture or other shapes.Bilevel ring-type arc 401 ' from its first end to the second end rounding off, and arches upward to the direction away from spraying layer 5, as shown in Figure 4; Bilevel ring-type arc is symmetrical arranged, and curved angle is θ 3, 0 °≤θ 3< 90 °, curved angle can adjust according to actual.And carry effect ring with reference to the first, the width (length in tower body radial direction) that the second carries effect ring also successively decreases from orlop successively to upper strata.The arc that this second carries effect ring is carried efficient construction and can be reduced flue gas resistance, also can be used as the supporting construction of spraying layer.Overall structure effectively prevents the meaningless reduction of desulfuration efficiency, ensures high desulfurization efficiency.

In other embodiments of the invention, the structure of smoke inlet guide ring and the structure of exhanst gas outlet airflow fence can be exchanged, or the guiding device of entrance and outlet adopts same guide ring or airflow fence structure, two kinds of structures all can carry out good water conservancy diversion to flue gas.

In other embodiments of the invention, the spraying layer quantity in each purifying column determines, according to current SO according to the inlet flue gas sulfur content of Practical Project and desulfuration efficiency 2concentration of emission is reduced to 50mg/Nm 3, general newly-built single tower spraying layer quantity all>=4 layers, the spray coverage rate > 200% of every layer of spraying layer.

In other embodiments of the invention, demister can select Flat defroster, ridge type demister or tubular demister, or the combination of two kinds.

It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (9)

1. carrying in effect ring and tower of high-efficiency desulfurization purification carries an efficient construction, comprises tower body;
It is characterized in that:
Described tower body is provided with exhanst gas outlet, exhanst gas outlet airflow fence, demister, spraying layer from top to bottom successively, carries effect ring, smoke inlet guide ring, smoke inlet, desulfurization slurry pond, is provided with pH-meter, oxidation air pipeline and jet mixing in described desulfurization slurry pond;
Wherein, described spraying layer is multilayer, and every layer of described spraying layer place is equipped with and carries effect ring for gathering described in flue gas, described in carry effect ring and comprise following structure:
Spraying layer place every layer described, described in carry effect ring and be positioned at the below of described spraying layer; Described carry effect ring comprise upper strata carry effect plate and the gripper shoe that supports of effect plate is put forward to described by lower floor; Described to carry effect plate be annular plate, and arranges according to the inwall of described tower body;
Or;
Spraying layer place every layer described, described in carry effect ring be positioned at the position contour with described spraying layer; Described effect ring of carrying comprises upper and lower two-layer ring-type arc, this two-layer ring-type arc arranges according to the inwall of tower body and is divided into the both sides up and down of spraying layer, the first end of described ring-type arc is connected with tower body inwall, and the second end is connected with spraying layer, fixes to carry out installation to spraying layer every layer described; On upper and lower two-layer ring-type arc, cloth is porose.
2. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 1 carries efficient construction, it is characterized in that:
When described carry effect ring be arranged at below described spraying layer carrying effect ring time, described in carry effect plate be a hang plate, described in carry one end of being connected with tower body inwall of effect plate be its first end, the other end is its second end, described in carry imitate plate first end higher than the second end;
The described angle carrying effect plate and tower body inwall is θ 1, 90 ° of < θ 1< 120 °.
3. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 2 carries efficient construction, it is characterized in that:
Put forward the length of effect plate in described tower body radial direction described in multilayer, successively decrease successively to the superiors from orlop.
4. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 2 carries efficient construction, it is characterized in that:
Described gripper shoe comprises equally distributed polylith and divides support plate;
Described point of support plate is a hang plate, and one end that described in every block, point support plate is connected with tower body inwall is its first end, and the other end is its second end, and the first end of described point of support plate is lower than the second end;
And the second end of described point of support plate upwards extends until imitate plate be connected with described carrying, and and described carry imitating between plate form an angle theta 2, 30 ° of < θ 2< 60 °.
5. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 4 carries efficient construction, it is characterized in that:
Identical with described in the layer point of length of support plate in described tower body radial direction, and in gripper shoe described in multilayer, the length of its point of support plate is successively decreased from orlop successively to the superiors.
6. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 1 carries efficient construction, it is characterized in that:
When described carry effect ring for carry described in the contour setting of described spraying layer imitate ring time, bilevel described ring-type arc from its first end to the second end rounding off, and arches upward to the direction away from described spraying layer;
Bilevel described ring-type arc is symmetrical arranged, and curved angle is θ 3, 0 °≤θ 3< 90 °.
7. the carrying in effect ring and tower of high-efficiency desulfurization purification according to any one of claim 1-6 carries efficient construction, it is characterized in that, comprises further:
Wet electrical dust precipitator, it is located between described demister and described exhanst gas outlet airflow fence;
Expanding uniform device, it is located between described demister and described wet electrical dust precipitator.
8. carrying in effect ring and tower of high-efficiency desulfurization purification according to claim 7 carries efficient construction, it is characterized in that:
Described expanding uniform device comprises multiple coaxial taper cone barrel, and the bottom bore of each described taper cone barrel is little, and top bore is large.
9. the carrying in effect ring and tower of high-efficiency desulfurization purification according to any one of claim 1-6 carries efficient construction, it is characterized in that:
Described smoke inlet guide ring is tilted-putted oval orifice plate, its near the side of described smoke inlet higher than its side away from described smoke inlet; Described oval orifice plate is opened the identical airflow hole in multiple aperture, and the distribution density of multiple described airflow hole on described oval orifice plate is gradually fallen to the side away from described smoke inlet from the side near described smoke inlet;
And/or;
The gas channel direction of described exhanst gas outlet is different from the air flow direction in tower body; Described exhanst gas outlet airflow fence comprises perpendicular staggered straight plate, described straight plate vertical interlaced forms multiple grate opening flow through for air-flow, and the perforated area of multiple described grate opening is cumulative to the side away from described exhanst gas outlet from the side near described exhanst gas outlet.
CN201410657519.7A 2014-11-18 2014-11-18 Efficient desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure CN104307352A (en)

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CN201410657519.7A CN104307352A (en) 2014-11-18 2014-11-18 Efficient desulfurization purification efficiency improvement ring and in-tower efficiency improvement structure

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CN105107329A (en) * 2015-09-16 2015-12-02 北京国能中电节能环保技术有限责任公司 Efficient desulphurization and dust removal device
CN105126517A (en) * 2015-08-17 2015-12-09 中国重型机械研究院股份公司 Ridge-shaped water diversion-type air flow uniform distribution device
CN105457452A (en) * 2015-12-28 2016-04-06 北京国能中电节能环保技术有限责任公司 Pipe grid flow equalizing device used for flue gas treatment system
CN105536473A (en) * 2015-12-23 2016-05-04 淄博永辰环境影响评价有限公司 Scrubbing tower
CN105617852A (en) * 2016-03-28 2016-06-01 上海龙净环保科技工程有限公司 Desulfurization and dedusting absorption tower with porous current equalizer

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CN101732963A (en) * 2008-11-14 2010-06-16 姜桂英 Multiphase flow smoke purifying process
CN201329248Y (en) * 2008-12-22 2009-10-21 合肥水泥研究设计院 Spray tower with flow-disturbing ring device
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Publication number Priority date Publication date Assignee Title
CN105126517A (en) * 2015-08-17 2015-12-09 中国重型机械研究院股份公司 Ridge-shaped water diversion-type air flow uniform distribution device
CN105107329A (en) * 2015-09-16 2015-12-02 北京国能中电节能环保技术有限责任公司 Efficient desulphurization and dust removal device
CN105536473A (en) * 2015-12-23 2016-05-04 淄博永辰环境影响评价有限公司 Scrubbing tower
CN105457452A (en) * 2015-12-28 2016-04-06 北京国能中电节能环保技术有限责任公司 Pipe grid flow equalizing device used for flue gas treatment system
CN105617852A (en) * 2016-03-28 2016-06-01 上海龙净环保科技工程有限公司 Desulfurization and dedusting absorption tower with porous current equalizer

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Application publication date: 20150128