CN202538630U - Anticorrosion layer structure of desulfurization absorption tower spray beam - Google Patents

Anticorrosion layer structure of desulfurization absorption tower spray beam Download PDF

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Publication number
CN202538630U
CN202538630U CN2012201072978U CN201220107297U CN202538630U CN 202538630 U CN202538630 U CN 202538630U CN 2012201072978 U CN2012201072978 U CN 2012201072978U CN 201220107297 U CN201220107297 U CN 201220107297U CN 202538630 U CN202538630 U CN 202538630U
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China
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layer
spray beam
layer structure
tower spray
anticorrosive coat
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Expired - Lifetime
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CN2012201072978U
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Chinese (zh)
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潘忠文
陈维岩
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Chengdu Longzhiquan Science & Technology Co., Ltd.
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CHENGDU LONGQUAN ANTI-CORROSION ENGINEERING CO LTD
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Abstract

The utility model discloses an anticorrosion layer structure of a desulfurization absorption tower spray beam, and belongs to the technical field of corrosion prevention. The anticorrosion layer structure of the desulfurization absorption tower spray beam disclosed by the utility model comprises a desulfurization tower spray layer tower wall and a desulfurization tower spray beam which are connected with each other, wherein anticorrosion layers are respectively arranged on the desulfurization tower spray layer tower wall and the desulfurization tower spray beam, and the two anticorrosion layers are connected with an FRP (Fiber Reinforce Plastic) layer at the same time to form an integral structure. The anticorrosion layer structure of the desulfurization absorption tower spray beam provided by the utility model is simple in structure, highly efficient in performance and low in construction difficulty; the anticorrosion layer structure can effectively prevent the destruction of the anticorrosion layer caused by vibration of the spray beam, and the corrosion resistant property is good; and the anticorrosion layer structure can adequately resist the corrosion by various acid liquids in the desulfurization absorption tower, and has matrix deformation resistance, thus the maintenance cost is reduced and the anticorrosion layer structure is worthy of popularization.

Description

A kind of anti-corrosion layer structure of desulfuration absorbing tower spray beam
Technical field
The utility model relates to a kind of aseptic technic, particularly a kind of aseptic technic of desulfuration absorbing tower spray beam.
Background technology
A large amount of SO are contained from the flue gas of boiler emission in thermal power plant before not setting up desulfurizer 2, directly enter atmosphere, SO through chimney 2Combine to form acid solution with airborne moisture, accumulate over a long period, influence the healthy of people with the form contaminated environment of acid rain.
After heat-engine plant desulfurizer was set up, this environmental issue just was able to solve.But what enter atmosphere through chimney before the desulfurization is high-temperature gas, and being does not have corrosively, and what after desulfurization, enter atmosphere is the low temperature wet flue gas, contain the acid solution of heterogeneity, as: sulfuric acid, nitric acid etc., corrosivity is stronger.So must carry out the lining anti-corrosion construction to desulphurization plant such as desulfurizing tower, flue gas flue etc., prevent its dielectric corrosion that is corroded.Some difficult constructions or the phenomenon that anticorrosive coat comes off or steel matrix is corroded wears will occur than the position of destructible through a period of time operation back in the heat-engine plant desulfurized lining anti-corrosion engineering of being done, desulfuration absorbing tower sprays the position that beam comes to this.Because desulfuration absorbing tower spray beam is the gas-liquid environment that is in the slurries under the spraying layer spray of absorption tower and gets into the high-temperature flue gas neutralization on absorption tower, corrosivity is more serious; Owing to shower is placed on the spray beam, in the process of operation, the vibration at spray beam middle part is bigger, so common glass flake anticorrosive coat is prone to come off owing to poor toughness in addition.So when carrying out anticorrosive construction, will consider the factor of each side, should consider that it a bit is exactly vibration factor that gas-liquid burn into slurries wash away, also have important.If the bad environment that not only can pollute plant area of preservative treatment, but also badly influence the safe in utilization of absorption tower, bring economic loss and potential safety hazard to entire power plant.
In the prior art, a kind of scheme is on desulfuration absorbing tower spray beam, directly to carry out the glass flake anticorrosive construction, and there is the bad shortcoming of freedom from vibration in this scheme; Another kind of scheme is on desulfuration absorbing tower tower wall and spray beam, all to do the rubber anti-corrosive layer, and this anticorrosive coat various aspects of performance is all excellent, but has the defective that cost is very high and difficulty of construction is big.
The utility model content
The goal of the invention of the utility model is: the problem to above-mentioned existence provides a kind of simple in structure, favorable anti-corrosion effect; Anti-wear performance is good, and cost is lower, and difficulty of construction is low; Can prevent the anti-corrosion layer structure of the desulfuration absorbing tower spray beam that flutter failure, acid solution are washed away effectively, use this anti-corrosion layer structure, can protect desulfuration absorbing tower spray beam effectively; Make its life-span permanent, thereby reduce maintenance cost effectively.
The technical scheme that the utility model adopts is following:
The anti-corrosion layer structure of the desulfuration absorbing tower spray beam of the utility model; Comprise interconnective desulfurizing tower spraying layer tower wall and desulfurizing tower spray beam; Be respectively arranged with anticorrosive coat on said desulfurizing tower spraying layer tower wall and the desulfurizing tower spray beam, two anticorrosive coats are connected to form overall structure with the FRP layer simultaneously.
Owing to adopted said structure; At the glass flake anticorrosive coat of desulfurizing tower spray beam near the less position laying of tower wall vibrations; Ability is resisted the corrosion of various acid solutions and is washed away; And non-deformability and impermeability are arranged, anticorrosion blind spot appears in the overlap joint that carries out different anticorrosive coats in this zone in the time of avoiding different anticorrosive coats overlap joint.Make the desulfuration absorbing tower of the utility model spray the anti-corrosion layer structure of beam, enough resist the corrosion of various acid solutions and wash away excellent in durability.
In order fully to resist the corrosion of various acid solutions, make its freedom from vibration, erosion resistibility and impermeability all good, and can resist the corrosion of various acid solutions and wash away, have good freedom from vibration, excellent in durability.Further; The anti-corrosion layer structure of said desulfuration absorbing tower spray beam; On said desulfurizing tower spraying layer tower wall, be equipped with the glass flake anticorrosive coat, this glass flake anticorrosive coat covers desulfurizing tower spraying layer tower wall and sprays the seam that is connected between the beam with desulfurizing tower, and is overlapped on the desulfurizing tower spray beam.
The anti-corrosion layer structure of the desulfuration absorbing tower spray beam of the utility model, said glass flake anticorrosive coat covers and connects seam, and is overlapped in the 500mm place on the desulfurizing tower spray beam.The glass flake anticorrosive coat can seal whole connection seam effectively, makes whole anticorrosive coat have good permeability resistance, and abrasion resistance and endurance quality are all good, and antiseptic effect is better.
In order to guarantee the antiseptic effect of desulfurizing tower spray beam; Simultaneously in order to make desulfurizing tower spray beam sealed effectively with the seam that is connected between the desulfurizing tower spraying layer tower wall; Guarantee its antiseptic effect; Therefore further, be equipped with the rubber anti-corrosive layer on the said desulfurizing tower spray beam, and rubber anti-corrosive layer and glass flake anticorrosive coat overlap.
For the bonding crack (being overlapping the slot) that makes glass flake anticorrosive coat and rubber anti-corrosive layer is protected fully; Make the glass flake anticorrosive coat can combine well with the rubber anti-corrosive layer; Have good freedom from vibration, abrasion resistance and endurance quality are all good, and antiseptic effect is better.Further, said rubber anti-corrosive layer is overlapped on the glass flake anticorrosive coat on the desulfurizing tower spray beam, and said FRP layer is layed in the overlapping the slot between rubber anti-corrosive layer and the glass flake anticorrosive coat its parcel.Can guarantee overlapping the slot by parcel closely, thereby, guarantee its sealing effectiveness the junction good seal of rubber anti-corrosive layer and glass flake anticorrosive coat.
For the bonding crack (being overlapping the slot) that makes glass flake anticorrosive coat and rubber anti-corrosive layer is protected fully; Make the glass flake anticorrosive coat can combine well with the rubber anti-corrosive layer; Have good freedom from vibration, abrasion resistance and endurance quality are all good, and antiseptic effect is better.Further, adopt the both sides of said FRP layer to be overlapped in respectively on rubber anti-corrosive layer and the glass flake anticorrosive coat, and the limit portion of FRP layer is apart from overlapping the slot 150mm.Therefore can make that its antiseptic effect is better so that FRP layer and glass flake anticorrosive coat can combine with the rubber anti-corrosive layer well, have good freedom from vibration simultaneously.
In order to make the rubber anti-corrosive layer have good Corrosion Protection, make antiseptic effect better, thereby anti-corrosion layer structure is more stable, longer service life, further, said rubber anti-corrosive layer is processed by butyl rubber.
Better for the antiseptic effect that makes the glass flake anticorrosive coat, make that simultaneously anticorrosive coat reaches instructions for use, be fit to apply, the thickness of said further glass flake anticorrosive coat is 3.5mm.
Better for the antiseptic effect that makes the rubber anti-corrosive layer, make that simultaneously anticorrosive coat reaches instructions for use, be fit to apply, further, the thickness of said rubber anti-corrosive layer is 3mm.
Better for the antiseptic effect that makes the FRP layer, make that simultaneously anticorrosive coat reaches instructions for use, be fit to apply, further, the thickness of said FRP layer is 2mm.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the desulfuration absorbing tower of the utility model sprays the anti-corrosion layer structure of beam; Simple in structure, be skillfully constructed, what can solve effectively that this position is prone to most comes off, washes away because of slurries problems such as destruction because of vibration causes anticorrosive coat; Prolong service life, can reduce maintenance cost to greatest extent;
2. the anti-corrosion layer structure of the desulfuration absorbing tower of the utility model spray beam can prevent acid liquid corrosion and sweep of gases, and desulfuration absorbing tower spray beam is played protection effectively, and anti-matrix morphotropism, anti-corrosive properties are all good;
3. the desulfuration absorbing tower of the utility model sprays the anti-corrosion layer structure of beam, and difficulty of construction is low, easy to maintenance, and with low cost, is beneficial to popularization.
Description of drawings
Fig. 1 is the sketch map that the desulfuration absorbing tower of the utility model sprays the anti-corrosion layer structure of beam;
Mark among the figure: 1-desulfuration absorbing tower tower wall, 2-desulfuration absorbing tower spray beam, 3-glass flake anticorrosive coat, 4-rubber anti-corrosive layer, 5-FRP layer.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Said FRP layer is the made fiberglass anticorrosive coat of resin and glass fibre.
Embodiment 1; The anti-corrosion layer structure of the desulfuration absorbing tower spray beam of the utility model, desulfurizing tower spraying layer tower wall 1 interconnects with desulfurizing tower spray beam 2, and is as shown in Figure 1; Said desulfurizing tower spraying layer tower wall 1 sprays on the beam 2 with desulfurizing tower and is respectively arranged with anticorrosive coat; On said desulfurizing tower spraying layer tower wall 1, be equipped with glass flake anticorrosive coat 3, this glass flake anticorrosive coat 3 covers desulfurizing tower spraying layer tower wall 1 and sprays the seam that is connected between the beam 2 with desulfurizing tower, and is overlapped on the desulfurizing tower spray beam 2; Said glass flake anticorrosive coat 3 covers and connects seam; And be overlapped in the 500mm place on the desulfurizing tower spray beam 2, certainly according to the production demand of reality, select to be overlapped in other the position on the desulfurizing tower spray beam 2 near desulfurization spraying layer tower wall 1; Desulfurizing tower spray beam 2 is a bit of owing to adopting wear-resisting reinforced glass flake construction near the tower wall vibrations is less near desulfurizing tower spraying layer tower wall 1; Can possess the needed each item antiseptic property in this position, carry out the overlap joint of different anticorrosive coats in addition herein and can avoid anticorrosion blind spot occurring, make the whole anticorrosive coat performance behind the overlap joint best.Anticorrosive coat on the desulfurizing tower spray beam 2 can adopt the anticorrosive coat of various ways, can make two anticorrosive coats be connected to form overall structure with FRP layer 5 simultaneously, reaches good antiseptic effect and gets final product.
Embodiment 2 is similar with embodiment 1; Its difference is: be equipped with rubber anti-corrosive layer 4 on the said desulfurizing tower spray beam 2; And said rubber anti-corrosive layer 4 is overlapped on the glass flake anticorrosive coat 3 on the desulfurizing tower spray beam 2, and said FRP layer 5 is layed in the overlapping the slot between rubber anti-corrosive layer 4 and the glass flake anticorrosive coat 3 its parcel.The both sides of said FRP layer 5 are overlapped in respectively on rubber anti-corrosive layer 4 and the glass flake anticorrosive coat 3, and the limit portion of FRP layer 5 is apart from overlapping the slot 150mm.Certainly, select the limit portion of FRP layer 5 is snapped into other position on rubber anti-corrosive layer 4 and the glass flake anticorrosive coat 3 according to the needs of reality.Said rubber anti-corrosive layer 4 is processed by butyl rubber, can certainly select other rubber according to actual needs, makes it have good Corrosion Protection, make antiseptic effect better, thereby anti-corrosion layer structure is more stable, longer service life.On said desulfuration absorbing tower spray beam 2, lay rubber anti-corrosive layer 4; It makes up with the mode that the glass flake anticorrosive coat 3 of desulfuration absorbing tower spray beam 2 terminations is taked to overlap; Take rubber anti-corrosive layer 4 anticorrosion on the desulfuration absorbing tower spray beam 2; Can prevent effectively to destroy, and the scour resistance of rubber anti-corrosive layer anticorrosion 4 is excellent, can bear directly washing away of slurries because of the anticorrosive coat that the spray beam vibration causes.Doing FRP layer 5 in overlapping the slot place of said glass flake anticorrosive coat 3 and rubber anti-corrosive layer 4 protects it; FRP layer 5 constitutes complete anticorrosion structure together with glass flake anticorrosive coat 3, rubber anti-corrosive layer 4, and this anticorrosion structure is fit to the running environment of desulfurizing tower spray beam fully.Can resist the corrosion of various acid solutions in the desulfurizing tower, have good anti-vibration performance, abrasion resistance ability and endurance quality.Said rubber anti-corrosive layer 4 is processed by butyl rubber, has better antiseptic property; Said glass flake anticorrosive coat 3 is wear-resisting reinforced glass flake, and it has good antiseptic property, and scour resistance is excellent; Said FRP layer 3 adopts the resinous type identical with the glass flake anticorrosive coat, and the cohesive force between them is better like this, and the whole anticorrosive coat performance of formation is better.
Embodiment 3 and embodiment 1, embodiment 2 are similar, and its difference is: the thickness of said glass flake anticorrosive coat 3 is 3.5mm, and the thickness of said rubber anti-corrosive layer 4 is 3.0mm, and the thickness of said FRP layer 5 is 2.0mm.Make the anti-corrosion layer structure of desulfuration absorbing tower spray beam of the utility model, be the thick rubber anti-corrosive layer of 3.5mm thick glass flake anticorrosive coat, 3.0mm and the thick FRP layer of 2.0mm reasonable combination anti-corrosion layer structure as desulfuration absorbing tower spray beam.This anti-corrosion layer structure with only comparing as anticorrosive coat with glass flake, difficulty of construction is suitable, antiseptic property is excellence more, freedom from vibration and scour resistance are better.With all compare as anticorrosive coat with butyl rubber, freedom from vibration and scour resistance are suitable, corrosion resistance is also suitable, but cost is lower.With the protective layer of this anticorrosive coat as desulfuration absorbing tower spray beam, through experiment, in some power plants' success test run usefulness, no anyly the phenomenon that comes off takes place to corrode because of anticorrosive coat self structure problem.Power plant has also avoided desulfuration absorbing tower taking place being corroded, the problem that causes power plant to stop production because of anticorrosive coat damages.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims (10)

1. the anti-corrosion layer structure of desulfuration absorbing tower spray beam; Comprise interconnective desulfurizing tower spraying layer tower wall (1) and desulfurizing tower spray beam (2); It is characterized in that: said desulfurizing tower spraying layer tower wall (1) sprays on the beam (2) with desulfurizing tower and is respectively arranged with anticorrosive coat, and two anticorrosive coats are connected to form overall structure with FRP layer (5) simultaneously.
2. the anti-corrosion layer structure of desulfuration absorbing tower spray beam as claimed in claim 1; It is characterized in that: on said desulfurizing tower spraying layer tower wall (1), be equipped with glass flake anticorrosive coat (3); This glass flake anticorrosive coat (3) covers desulfurizing tower spraying layer tower wall (1) and sprays the seam that is connected between the beam (2) with desulfurizing tower, and is overlapped on the desulfurizing tower spray beam (2).
3. the anti-corrosion layer structure of desulfuration absorbing tower spray beam as claimed in claim 2 is characterized in that: said glass flake anticorrosive coat (3) covers and connects seam, and is overlapped in the 500mm place on the desulfurizing tower spray beam (2).
4. like the anti-corrosion layer structure of claim 2 or 3 described desulfuration absorbing tower spray beams, it is characterized in that: be equipped with rubber anti-corrosive layer (4) on the said desulfurizing tower spray beam (2), and rubber anti-corrosive layer (4) overlaps with glass flake anticorrosive coat (3).
5. the anti-corrosion layer structure of desulfuration absorbing tower spray beam as claimed in claim 4; It is characterized in that: said rubber anti-corrosive layer (4) is overlapped on the glass flake anticorrosive coat (3) on the desulfurizing tower spray beam (2), and said FRP layer (5) is layed in the overlapping the slot between rubber anti-corrosive layer (4) and the glass flake anticorrosive coat (3) its parcel.
6. the anti-corrosion layer structure of desulfuration absorbing tower spray beam as claimed in claim 5; It is characterized in that: the both sides of said FRP layer (5) are overlapped in respectively on rubber anti-corrosive layer (4) and the glass flake anticorrosive coat (3), and the limit portion of FRP layer (5) is apart from overlapping the slot 150mm.
7. like the anti-corrosion layer structure of claim 5 or 6 described desulfuration absorbing tower spray beams, it is characterized in that: said rubber anti-corrosive layer (4) is processed by butyl rubber.
8. like the anti-corrosion layer structure of claim 2 or 3 or 5 or 6 described desulfuration absorbing tower spray beams, it is characterized in that: the thickness of said glass flake anticorrosive coat (3) is 3.5mm.
9. like the anti-corrosion layer structure of claim 5 or 6 described desulfuration absorbing tower spray beams, it is characterized in that: the thickness of said rubber anti-corrosive layer (4) is 3mm.
10. like the anti-corrosion layer structure of claim 1 or 2 or 3 or 5 or 6 described desulfuration absorbing tower spray beams, it is characterized in that: the thickness of said FRP layer (5) is 2mm.
CN2012201072978U 2012-03-21 2012-03-21 Anticorrosion layer structure of desulfurization absorption tower spray beam Expired - Lifetime CN202538630U (en)

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C56 Change in the name or address of the patentee

Owner name: CHENGDU LONGZHIQUAN SCIENCE + TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: CHENGDU LONGQUAN ANTI-CORROSION ENGINEERING CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 610100, No. six, No. 338, Chengdong Road, Chengdu economic and Technological Development Zone, Sichuan

Patentee after: Chengdu Longzhiquan Science & Technology Co., Ltd.

Address before: 610100, No. six, No. 338, Chengdong Road, Chengdu economic and Technological Development Zone, Sichuan

Patentee before: Chengdu Longquan Anti-Corrosion Engineering Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20121121

CX01 Expiry of patent term