CN202485012U - Anti-corrosion system for wet desulfurization of new steel inner cylinder chimney of thermal power plant - Google Patents

Anti-corrosion system for wet desulfurization of new steel inner cylinder chimney of thermal power plant Download PDF

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Publication number
CN202485012U
CN202485012U CN201220041422XU CN201220041422U CN202485012U CN 202485012 U CN202485012 U CN 202485012U CN 201220041422X U CN201220041422X U CN 201220041422XU CN 201220041422 U CN201220041422 U CN 201220041422U CN 202485012 U CN202485012 U CN 202485012U
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China
Prior art keywords
acid
layer
protection system
corrosion protection
chimney
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Expired - Fee Related
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CN201220041422XU
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Chinese (zh)
Inventor
陈然
郑荣钏
朱志成
顾泱
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BEIJING CALION TECH DEVELOPMENT Co Ltd
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BEIJING CALION TECH DEVELOPMENT Co Ltd
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Publication of CN202485012U publication Critical patent/CN202485012U/en
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Abstract

The utility model discloses an anti-corrosion system for wet desulfurization of a new steel inner cylinder chimney of a thermal power plant. The anti-corrosion system is characterized by comprising the anti-corrosion system of a cylinder body, the anti-corrosion system of a diversion plate and the bottom of a flue and the anti-corrosion system of a high scouring area with the elevation of 30m from the bottom of the chimney; a heat-resistant epoxy anti-corrosion coating layer, a potassium water glass acid-resistant mortar layer and a light-weight glazed acid-resistant ceramic face brick layer are sequentially inwards arranged on the cylinder wall of the anti-corrosion system of the cylinder body; and the heat-resistant epoxy anti-corrosion coating layer, the potassium water glass acid-resistant mortar layer, the light-weight glazed acid-resistant ceramic face brick layer, an organic silicon bonding material layer and a high-strength glazed acid-resistant ceramic face brick layer are respectively sequentially inwards arranged on the cylinder wall of each of the anti-corrosion system of the diversion plate and the bottom of the flue and the anti-corrosion system of the high scouring area with the elevation of 30m from the bottom of the chimney. The anti-corrosion system disclosed by the utility model can effectively prevent corrosive liquid from permeating and eroding the cylinder wall of the steel chimney by utilizing the good bonding performance of potassium water glass acid-resistant mortar; simultaneously, a light-weight glazed acid-resistant ceramic brick can realize great effects of acid corrosion resistance, wear resistance, heat insulation and the like; and the anti-corrosion system disclosed by the utility model has the characteristics of convenience in implementation, good anti-corrosion performance, good durability and the like.

Description

The corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in thermal power plant
Technical field
The utility model relates to the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in a kind of thermal power plant.
Background technology
Along with the enhancing of public's environmental consciousness, national policy is also increasingly high to the requirement in the environmental protection, stands in the breach especially as the thermal power plant of environmental protection key monitoring object, discharging again after newly-built thermal power plant needs carry out desulfurization and handle flue gas.Flue gas after the desulfurization is a wet flue gas; The corrosion type of its desulfurization wet flue gas comprises sulfuric acid, sulfurous acid, chloride, fluoride etc.; The flue gas grade is a severe corrosive, and low, the high humidity, little from pull out force of this cigarette temperature almost is in full operation under positive pressure state according to the theoretical calculation chimney.The condensate that the desulfurization smoke condensation forms has very strong corrosivity, and steel stack is worked under sour environment, corroded by the double action of flue gas pressures and humidity, even perforation, has a strong impact on chimney safe handling and structure durability.The utility model patent has proposed a kind of economical and practical, novel easily chimney anticorrosion way of enforcement in the chimney anticorrosion process.
The utility model content
The utility model technical problem to be solved provides the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in a kind of thermal power plant, efficiently solves the anticorrosion problem of chimney.
The utility model technical problem to be solved realizes through following technical scheme:
The corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in a kind of thermal power plant is characterized in that: comprise that stack shell corrosion protection system, deflector and flue bottom corrosion protection system and chimney bottom wash away district's corrosion protection system for 30 meters high to absolute altitude;
The barrel of said stack shell corrosion protection system inwardly sets gradually heat-proof epoxy anticorrosive paint layer, KP1 acid resistant adhesive mortar layer and light vitreous acid-proof ceramics face brick layer;
Said deflector and flue bottom corrosion protection system and chimney bottom all inwardly set gradually heat-proof epoxy anticorrosive paint layer, KP1 acid resistant adhesive mortar layer, light vitreous acid-proof ceramics face brick layer, the bonding bed of material of organosilicon and high strength vitreous acid-proof ceramics face brick layer to the barrel that 30 meters high of absolute altitudes wash away district's corrosion protection system.
Between the neighbouring two-layer face brick of the light vitreous acid-proof ceramics face brick layer of said stack shell corrosion protection system stagger in the mortar joint position.
High strength vitreous acid-proof ceramics face brick layer is set on the light vitreous acid-proof ceramics face brick layer of junction in the said stack shell, connects fixing through the bonding bed of material of organosilicon.
The beneficial effect of the utility model:
The utility model patent be to the newly-built Steel Inner Core of Chimney in thermal power plant adopt when anticorrosion a kind of economical and practical, implement novel anticorrosion system easily; This corrosion protection system utilizes the good adhesive property of KP1 acid resistant adhesive mortar; Prevent corrosive liquids infiltration erosion steel stack barrel effectively, light vitreous acid-proof ceramics brick can play effects such as the acid-proof burn into that arrives very much is wear-resisting, insulation simultaneously; The utlity model has convenient, the characteristics such as antiseptic property is good, good endurance of implementing.
Description of drawings
Fig. 1 anticorrosive coat floor plan
The double-deck junction layout drawing of Fig. 2
Fig. 3 deflector and flue bottom layout drawing
Among the figure, 1-steel cylinder barrel, 2-heat-proof epoxy anticorrosive paint layer, 3-KP1 acid resistant adhesive mortar layer, the light vitreous acid-proof ceramics face brick of 4-, the bonding bed of material of 6-organosilicon, 7-high strength vitreous acid-proof ceramics face brick layer, 8-deflector
The specific embodiment
Shown in Fig. 1-3, the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in thermal power plant is characterized in that: comprise that stack shell corrosion protection system, deflector and flue bottom corrosion protection system and chimney bottom wash away district's corrosion protection system for 30 meters high to absolute altitude;
The steel cylinder barrel 1 of said stack shell corrosion protection system inwardly sets gradually heat-proof epoxy anticorrosive paint layer 2, KP1 acid resistant adhesive mortar layer 3 and light vitreous acid-proof ceramics face brick layer 4;
Said deflector 8 all inwardly sets gradually heat-proof epoxy anticorrosive paint layer 2, KP1 acid resistant adhesive mortar layer 3, light vitreous acid-proof ceramics face brick layer 4, the bonding bed of material 6 of organosilicon and high strength vitreous acid-proof ceramics face brick layer 7 with flue bottom corrosion protection system and chimney bottom to the barrel that 30 meters high of absolute altitudes wash away district's corrosion protection system.
Between the neighbouring two-layer face brick of the light vitreous acid-proof ceramics face brick layer 4 of said stack shell corrosion protection system stagger in the mortar joint position.
High strength vitreous acid-proof ceramics face brick layer 7 is set on the light vitreous acid-proof ceramics face brick layer 4 of junction in the said stack shell, connects fixing through the bonding bed of material 6 of organosilicon.
Specific practice is: polishing steel inner cylinder substrate earlier, chimney inwardly is distributed with from barrel successively: chimney wall 1, the thick heat-proof epoxy anticorrosive paint of 3mm layer 2, the thick KP1 acid resistant adhesive mortar of 4mm layer 3, the light vitreous acid-proof ceramics face brick 4 that 50mm is thick.Chimney deflector 8 and flue bottom and chimney bottom inwardly are distributed with from barrel to 30 meters high districts of washing away of absolute altitude successively: the thick heat-proof epoxy anticorrosive paint of chimney wall, 3mm 2, the thick KP1 acid resistant adhesive mortar of 4mm layer 3, the thick high strength vitreous acid-proof ceramics face brick layer 7 of light vitreous acid-proof ceramics face brick layer 4,30mm that 50mm is thick.Wherein the thick potassium water of 4mm acid resistant adhesive mortar layer 3, require the weight of the used bonding material of every square meter to be not less than 11kg, and will stagger in face brick mortar joint position.The adhesive property that the KP1 acid resistant adhesive mortar is good prevents corrosive liquids infiltration erosion steel stack barrel effectively, and light vitreous acid-proof ceramics brick can play effects such as the acid-proof burn into that arrives very much is wear-resisting, insulation simultaneously.

Claims (3)

1. the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in thermal power plant is characterized in that: comprise that stack shell corrosion protection system, deflector and flue bottom corrosion protection system and chimney bottom wash away district's corrosion protection system for 30 meters high to absolute altitude;
The barrel of said stack shell corrosion protection system inwardly sets gradually heat-proof epoxy anticorrosive paint layer, KP1 acid resistant adhesive mortar layer and light vitreous acid-proof ceramics face brick layer;
Said deflector and flue bottom corrosion protection system and chimney bottom all inwardly set gradually heat-proof epoxy anticorrosive paint layer, KP1 acid resistant adhesive mortar layer, light vitreous acid-proof ceramics face brick layer, the bonding bed of material of organosilicon and high strength vitreous acid-proof ceramics face brick layer to the barrel that 30 meters high of absolute altitudes wash away district's corrosion protection system.
2. the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in thermal power plant as claimed in claim 1 is characterized in that: between the neighbouring two-layer face brick of the light vitreous acid-proof ceramics face brick layer of said stack shell corrosion protection system stagger in the mortar joint position.
3. the corrosion protection system of the newly-built Steel Inner Core of Chimney wet desulphurization in thermal power plant as claimed in claim 1; It is characterized in that: high strength vitreous acid-proof ceramics face brick layer is set on the light vitreous acid-proof ceramics face brick layer of junction in the said stack shell, connects fixing through the bonding bed of material of organosilicon.
CN201220041422XU 2012-02-09 2012-02-09 Anti-corrosion system for wet desulfurization of new steel inner cylinder chimney of thermal power plant Expired - Fee Related CN202485012U (en)

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CN201220041422XU CN202485012U (en) 2012-02-09 2012-02-09 Anti-corrosion system for wet desulfurization of new steel inner cylinder chimney of thermal power plant

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103542419A (en) * 2013-10-23 2014-01-29 瓮福(集团)有限责任公司 Concrete chimney leakage proofing method for producing ammonium sulfate
CN103791727A (en) * 2012-11-01 2014-05-14 宜宾恒旭投资集团有限公司 Flue structure inside rotary kiln
CN105114968A (en) * 2015-04-03 2015-12-02 溧阳康达威实业有限公司 Anticorrosion modification method for desulphurization chimney of thermal power plant and special coating preparation
CN105442908A (en) * 2014-09-18 2016-03-30 沈阳铝镁设计研究院有限公司 Reinforced concrete chimney cylinder head and method for manufacturing the same
CN105442907A (en) * 2014-08-19 2016-03-30 一方科技发展有限公司 Double-layer anti-corrosion system applied to wet chimney
CN106642174A (en) * 2015-11-04 2017-05-10 中国科学院金属研究所 Corrosion resistant brick for thermal power plant chimney inner cylinder or lining and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791727A (en) * 2012-11-01 2014-05-14 宜宾恒旭投资集团有限公司 Flue structure inside rotary kiln
CN103542419A (en) * 2013-10-23 2014-01-29 瓮福(集团)有限责任公司 Concrete chimney leakage proofing method for producing ammonium sulfate
CN105442907A (en) * 2014-08-19 2016-03-30 一方科技发展有限公司 Double-layer anti-corrosion system applied to wet chimney
CN105442908A (en) * 2014-09-18 2016-03-30 沈阳铝镁设计研究院有限公司 Reinforced concrete chimney cylinder head and method for manufacturing the same
CN105114968A (en) * 2015-04-03 2015-12-02 溧阳康达威实业有限公司 Anticorrosion modification method for desulphurization chimney of thermal power plant and special coating preparation
CN105114968B (en) * 2015-04-03 2017-04-26 溧阳康达威实业有限公司 Anticorrosion modification method for desulphurization chimney of thermal power plant and special coating preparation
CN106642174A (en) * 2015-11-04 2017-05-10 中国科学院金属研究所 Corrosion resistant brick for thermal power plant chimney inner cylinder or lining and preparation method thereof
CN106642174B (en) * 2015-11-04 2019-12-10 中国科学院金属研究所 Corrosion-resistant brick for inner barrel or lining of chimney of thermal power plant and preparation method of corrosion-resistant brick

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20121010

Termination date: 20180209