CN103343647B - Chimney adopting glass fiber reinforced plastic chimney inner barrel to discharge low-temperate high-humidity smoke - Google Patents

Chimney adopting glass fiber reinforced plastic chimney inner barrel to discharge low-temperate high-humidity smoke Download PDF

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Publication number
CN103343647B
CN103343647B CN201310297825.XA CN201310297825A CN103343647B CN 103343647 B CN103343647 B CN 103343647B CN 201310297825 A CN201310297825 A CN 201310297825A CN 103343647 B CN103343647 B CN 103343647B
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China
Prior art keywords
chimney
reinforced plastic
slot
glass fiber
fiber glass
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CN201310297825.XA
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Chinese (zh)
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CN103343647A (en
Inventor
王继辉
丁安心
倪爱清
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武汉理工大学
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Abstract

The invention relates to a thermal power plant chimney which adopts limestone-gypsum wet desulphurization and is not provided with a smoke heating device. The chimney comprises a reinforced concrete chimney outer barrel and a plurality of glass fiber reinforced plastic chimney inner barrel sections which are set in length and are connected with each other. The chimney is characterized in that end parts connected between the glass fiber reinforced plastic chimney inner barrel sections are of an insertion structure form, the upper portion of the insertion structure form is a plug, the lower portion of the insertion structure form is an insertion groove, annular inverse brackets are arranged on outer walls of the glass fiber reinforced plastic chimney inner barrel sections, and the glass fiber reinforced plastic chimney inner barrel sections are hung on a reinforced concrete chimney steel platform through the arranged annular brackets. The chimney has the advantages that cost for purchasing, installing, maintaining and replacing expansion joints is saved, condensing liquid plays a liquid sealing role and ensures the air-tightness of the glass fiber reinforced plastic chimney in the operation process, the insertion groove can be used as a water collecting device to collect condensing water, and service life is long. Moreover, the glass fiber reinforced plastic chimney can not be restricted in design height, and is convenient to install.

Description

A kind of chimney adopting fiber glass reinforced plastic chimney inner core to discharge low temperature, high-humidity gas fume

Technical field

The present invention relates to the chimney of coal-burning power plant, chemical industry, field of Environment Protection application, particularly relate to and a kind ofly adopt Limestone-gypsum Wet Flue Gas Desulfurization Process and do not establish the Chimney in Fossil Power Plant of Smoke-heating device.

Background technology

Along with environmental requirement improves constantly, need when heat power plant boiler tail gas or industrial furnace exhaust emissions to install wet desulphurization device (FGD) additional, absorb the objectionable impurities in tail gas.Consider Cost Problems, what current use was more extensive and ripe is adopt Limestone-gypsum Wet Flue Gas Desulfurization Process technique (WFGD) and after wet desulphurization, do not establish Smoke-heating device (GGH), flue gas after desulfurization humidity increases, temperature reduces, dew condensation phenomenon is there is in flue gas at the inwall of chimney, produce a large amount of condensate liquids, after sulfur trioxide remaining in flue gas etc. dissolve, form the dilution heat of sulfuric acid that corrosivity is very strong.The corrosivity of flue gas is very large, starts both at home and abroad to select to have the strong fiber glass reinforced plastic chimney inner core of decay resistance.Fiber glass reinforced plastic chimney has lightweight, high-strength, rotproofness performance is good, the advantage that regular maintenance cost is low, obtains the accreditation in market, and demand is constantly in increase.

Fiber glass reinforced plastic chimney inner core is undertaken hanging by certain length segmentation according to chimney height or in the support platform standing in steel concrete urceolus by current thermal power generation station-service fiber glass reinforced plastic chimney inner core, adopt closed non-metal expansion joint to connect between segmentation, fiber glass reinforced plastic chimney inner core divides intersegmental part to arrange captation.The material of expansion joint is generally rubber, and easily aging under sour environment, application life is short, in the power plant design time limit, need frequent replacing, has a strong impact on the normal operation of Power Plant.In addition, the installation of expansion joint, maintenance and change more difficult, it is purchased, I&M expense is also higher, and the captation in the segmentation of fiber glass reinforced plastic chimney inner core is to subregion condensation water collection poor effect, partial condensation liquid flows back to and flows in flue, forms corrosion to flue.

Summary of the invention

The object of the present invention is to provide a kind of chimney adopting fiber glass reinforced plastic chimney inner core to discharge low temperature, high-humidity gas fume, wherein fiber glass reinforced plastic chimney inner core divides intersegmental needs to use expansion joint to connect.

The present invention solves the problems of the technologies described above adopted technical scheme: a kind of fiber glass reinforced plastic chimney inner core that adopts discharges low temperature, the chimney of high-humidity gas fume, comprise reinforced concrete chimney urceolus and there is preseting length and the fiber glass reinforced plastic chimney inner core segmentation be connected with by some, it is characterized in that: be connected to described fiber glass reinforced plastic chimney inner core and divide intersegmental end to be bell and spigot frame form, wherein, the top of bell and spigot frame form is plug, bottom is slot, described fiber glass reinforced plastic chimney inner core segmentation outer wall is arranged annular bracket, the segmentation of fiber glass reinforced plastic chimney inner core is hung on reinforced concrete chimney steel platform by described annular bracket.

By such scheme, described plug from the bottom surface of slot and dual-side at intervals.

By such scheme, described slot material is glass fiber reinforced plastic, and hand sticks with paste manufacture technics.

By such scheme, the cross section structure form of described slot is that dual-side has difference in height (highly unequal) rectangle and trapezium channel section form.

By such scheme, the low certain distance of aspect ratio slot outer side edges height of described slot inner side edge.

By such scheme, it is the perforate of 100mm ~ 200mm that the outer side edges border of described slot is distributed with 1 ~ 2 diameter.

By such scheme, the top of described perforate under inner side edge overhead height, and distance slot bottom at intervals.

By such scheme, the distance of plug distance slot bottom surface should be less than the distance of bottom to the bottom of slot of perforate.

By such scheme, described perforate is connected with discharging tube.

A kind of chimney adopting fiber glass reinforced plastic chimney inner core to discharge low temperature, high-humidity gas fume provided by the present invention, compared with the existing technology have the following advantages: one, owing to not adopting expansion joint between fiber glass reinforced plastic chimney segmentation, eliminate the purchasing of expansion joint, install, safeguard and replacement cost; Its two, produce a large amount of condensate liquid when chimney runs and flow into slot along fiber glass reinforced plastic chimney inner core inwall, condensate liquid plays fluid-tight effect, ensures the airtight row of fiber glass reinforced plastic chimney in running; Its three, slot can collect condensed water as captation, without the need to installing captation again in the segmentation of fiber glass reinforced plastic chimney inner core; Its four, because the material forming fiber glass reinforced plastic chimney inner core be all corrosion-resistant and ganoid glass fiber reinforced plastic formation, therefore this fiber glass reinforced plastic chimney long service life; Its five, owing to being provided with bell and spigot frame form between fiber glass reinforced plastic chimney segmentation, the design height of fiber glass reinforced plastic chimney can not be limited and easy for installation.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is described in further detail

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the A fiber glass reinforced plastic chimney inner core of Fig. 1 divides intersegmental bell and spigot frame form enlarged diagram

Fig. 3 is the enlarged diagram of the annular bracket of the B of Fig. 1.

In figure: 1 is reinforced concrete chimney urceolus, 2 is the segmentation of fiber glass reinforced plastic chimney inner core, and 3 is slot, and 4 is slot inner side edge, and 5 is slot outer side edges, and 6 is discharging tube, and 7 is plug, and 8 is condensate liquid, and 9 is annular bracket, and 10 is reinforced concrete chimney steel platform.

Detailed description of the invention

Below in conjunction with accompanying drawing, a kind of structure of the chimney of fiber glass reinforced plastic chimney inner core discharge low temperature, high-humidity gas fume and use principle of adopting provided by the present invention is described in further detail.

As shown in Figure 1, be a kind of chimney structure generalized section adopting fiber glass reinforced plastic chimney inner core to discharge low temperature, high-humidity gas fume provided by the present invention.This chimney comprises reinforced concrete chimney urceolus 1, fiber glass reinforced plastic chimney inner core segmentation 2 by multiple preseting length, and the end be connected between fiber glass reinforced plastic chimney inner core segmentation 2 is made up of bell and spigot frame form A.

Form the structure of above-mentioned bell and spigot frame form A as shown in Figure 2, the top of bell and spigot frame form is plug 7, and bottom 3 is slot, and described plug from the bottom surface of slot and dual-side at intervals.The section form U-shaped of slot 3, its section form can also be other rectangle and trapezium channel section form, the height of slot dual-side is unequal, the highly low certain distance of aspect ratio outer side edges 5 of its inner side edge 4, it is the perforate of 100mm ~ 200mm that the outer side edges border of slot is distributed with 1 ~ 2 diameter, the top of described perforate is under inner side edge overhead height, and bottom distance slot at intervals, and the distance of plug distance slot bottom surface should be less than the distance of bottom to the bottom of slot of perforate, perforate is connected with discharging tube 6, for discharging condensate liquid.Wet desulphurization and the chimney not installing Smoke-heating device additional can produce a large amount of condensate liquids 8 in running, condensate liquid 8 flows into slot along fiber glass reinforced plastic chimney inner core segmentation inwall, when the height of condensate liquid accumulated exceedes the bottom of plug 7, closed glass inner cylinder of steel chimney, ensure that the airtight row of fiber glass reinforced plastic chimney inner core in running; When the height of the condensate liquid accumulated exceedes the bottom of perforate, condensate liquid more than aperture bottom is discharged outside slot through discharging tube 6, prevents the height of condensate liquid from exceeding the height of slot inner side edge 4 and flowing in fiber glass reinforced plastic chimney inner core.For convenience of manufacturing and processing, slot adopts hand to stick with paste technique and makes.Plug 7 apart from the bottom surface of slot 3 and slot inner side edge 4 and slot outer side edges 5 at intervals, is used for buffer compensation to the fiber glass reinforced plastic chimney be made up of the segmentation of the fiber glass reinforced plastic chimney inner core in use displacement that causes of wind, earthquake, temperature.

Fiber glass reinforced plastic chimney inner core segmentation 2 outer wall arranges annular bracket 9, and the segmentation of fiber glass reinforced plastic chimney inner core is hung on reinforced concrete chimney steel platform 10 by described annular bracket.

Claims (2)

1. one kind adopts fiber glass reinforced plastic chimney inner core discharge low temperature, the chimney of high-humidity gas fume, comprise reinforced concrete chimney urceolus (1) and there is preseting length and the fiber glass reinforced plastic chimney inner core segmentation (2) be connected with by some, it is characterized in that: be connected to described fiber glass reinforced plastic chimney inner core and divide intersegmental end to be bell and spigot frame form, wherein, the top of bell and spigot frame form is plug (7), bottom is slot (3), described fiber glass reinforced plastic chimney inner core segmentation outer wall is arranged annular bracket (9), the segmentation of fiber glass reinforced plastic chimney inner core is hung on reinforced concrete chimney steel platform (10) by described annular bracket, described plug from the bottom surface of slot and dual-side at intervals, described slot material is glass fiber reinforced plastic, and hand sticks with paste manufacture technics, the cross section structure form of described slot is U-shaped, the highly low certain distance of aspect ratio slot outer side edges (5) of described slot inner side edge (4), it is the perforate of 100mm ~ 200mm that the outer side edges border of described slot is distributed with 1 ~ 2 diameter, the top of described perforate under inner side edge overhead height, and distance slot bottom at intervals, the distance of plug distance slot bottom surface should be less than the distance of bottom to the bottom of slot of perforate.
2. a kind of chimney adopting fiber glass reinforced plastic chimney inner core to discharge low temperature, high-humidity gas fume according to claim 1, is characterized in that: described perforate is connected with discharging tube (6).
CN201310297825.XA 2013-07-16 2013-07-16 Chimney adopting glass fiber reinforced plastic chimney inner barrel to discharge low-temperate high-humidity smoke CN103343647B (en)

Priority Applications (1)

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CN201310297825.XA CN103343647B (en) 2013-07-16 2013-07-16 Chimney adopting glass fiber reinforced plastic chimney inner barrel to discharge low-temperate high-humidity smoke

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924820B (en) * 2014-04-03 2016-05-25 李芝春 A kind of installation method of the wet chimney of thermal power plant of fire retardant, anticorrosive glass fibre reinforced plastic structure
CN103912154A (en) * 2014-04-12 2014-07-09 北京大唐恒通机械输送技术有限公司 Material of chimney with flame-retardant and corrosion-prevention glass fiber reinforced plastic structure
CN103968399A (en) * 2014-04-23 2014-08-06 上海迪夫格环境科技有限公司 Suspension type inner barrel telescopic-joint-free supporting system and sleeve type chimney
CN106338078A (en) * 2015-07-10 2017-01-18 大唐环境产业集团股份有限公司 Smoke condensed dew acid liquid collecting device for glass fiber reinforced plastic inner chimney
CN106322413A (en) * 2015-07-10 2017-01-11 大唐环境产业集团股份有限公司 Flue gas condensation and dew formation acid fluid collection device for glass fiber reinforced plastic internal chimney
CN106122997A (en) * 2016-08-09 2016-11-16 北京金汇中电力科技有限公司 A kind of smoke liquid medium Almightiness type collects exhaust system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201209872Y (en) * 2008-04-17 2009-03-18 中冶东方工程技术有限公司上海分公司 Chimney
CN201424844Y (en) * 2008-07-23 2010-03-17 广东省电力设计研究院 Novel chimney inner core vertical expansion joint
CN102251703A (en) * 2011-05-24 2011-11-23 国核电力规划设计研究院 Hanging node structure of hanging type steel sleeve chimney

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201209872Y (en) * 2008-04-17 2009-03-18 中冶东方工程技术有限公司上海分公司 Chimney
CN201424844Y (en) * 2008-07-23 2010-03-17 广东省电力设计研究院 Novel chimney inner core vertical expansion joint
CN102251703A (en) * 2011-05-24 2011-11-23 国核电力规划设计研究院 Hanging node structure of hanging type steel sleeve chimney

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