CN102563594B - Flue waste heat boiler for medical waste and hazardous waste incineration system - Google Patents
Flue waste heat boiler for medical waste and hazardous waste incineration system Download PDFInfo
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- CN102563594B CN102563594B CN 201210025444 CN201210025444A CN102563594B CN 102563594 B CN102563594 B CN 102563594B CN 201210025444 CN201210025444 CN 201210025444 CN 201210025444 A CN201210025444 A CN 201210025444A CN 102563594 B CN102563594 B CN 102563594B
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Abstract
The invention discloses a flue waste heat boiler for a medical waste and hazardous waste incineration system. A boiler barrel of the boiler is mounted on a platform, a front hearth and a rear hearth comprise pipe laying furnace walls, a flue is of an inverted U-shaped structure, a front water cooling wall, a rear water cooling wall, a left water cooling wall, a right water cooling wall and a middle water cooling wall are arranged in the front hearth and the rear hearth, the water cooling walls and the furnace walls are hung on a girder of the platform through a water pipe system hanging device, the upper ends of the front water cooling wall, the rear water cooling wall and the middle water cooling wall respectively enter a middle upper header in a 15-degree inclined manner, the lower ends of the front water cooling wall, the rear water cooling wall and the middle water cooling wall directly enter a lower header, the front water cooling wall, the rear water cooling wall and the middle water cooling wall are collected to the middle upper header and communicated with the boiler barrel through four transfer pipes by the upper header, the upper end of the right water cooling wall enters the upper header and then enters a steam drum through two right water cooling wall transfer pipes, the lower end of the right water cooling wall enters the lower header, the upper end of the left water cooling wall enters the upper header and then enters the steam drum through a left water cooling wall transfer pipe, the lower end of the left water cooling wall enters the lower header, and a loop economizer is arranged in a lower space of the rear hearth. The flue waste heat boiler has the advantages of reasonable structure, high heat efficiency and environmental protection.
Description
Technical field
The present invention relates to a kind of flue type waste heat boiler, be specifically related to be used in medical waste, the industrial hazardous waste incineration system flue type waste heat boiler of heat energy recycle.
Technical background
Present domestic doctor is useless, in the industrial hazardous waste incineration system, heat-energy utilizing device generally adopts traditional air heat exchanger or simple convection bank waste heat boiler, the life-span is short, heat exchange efficiency is low.And for the treatment process requirement (1100 ℃ of flue-gas temperatures) of giving up by danger, also having distinct issues is that flue-gas temperature is near the softening temperature of flying dust, softening flying dust very easily coheres in convection bank, cause the quick corrosion of the continuous decline of boiler heat exchange efficient and heating surface, increased operating cost.
Summary of the invention
Technical problem to be solved by this invention provides a kind of heat utilization rate that is intended to improve, and reduces the useless danger of the doctor waste burning system flue type waste heat boiler of the operating cost of system.
For solving the problems of the technologies described above, the present invention cures the technical scheme that useless danger waste burning system flue type waste heat boiler adopts: it comprises drum, drum is installed on the platform that is connected with four root posts, be burner hearth in four root posts, the burner hearth below is provided with inlet flue duct and exhaust pass, before described burner hearth adopts tubine formula furnace wall to consist of, rear twin furnace, flue is ∏ type structure, before, before rear twin furnace headroom cross section forms after by seamless steel pipe seam band steel, after, left, right, in five water-cooling walls, this water-cooling wall is fin panel casing, and water-cooling wall itself and furnace wall thereof all are suspended on the crossbeam of platform by the water pipe system erecting by overhang; Upper header in the middle of described front water-cooling wall upper end inclination 15 is spent and entered, the lower end directly enters lower collecting box, and front water-cooling wall and front water-cooling wall disperse down-comer to consist of the loop, and the interior cross section ratio of front water-cooling wall dispersion down-comer and tedge is 0.311 in this loop; Upper header in the middle of described rear water-cooling wall upper end inclination 15 degree enter, the bottom directly enters lower collecting box, be hung with the steam-generating bank of flag type in the middle part of rear hearth top pipe, rear water-cooling wall disperses down-comer and rear water-cooling wall and the steam-generating bank of flag type to consist of the loop, and the interior cross section ratio of rear water-cooling wall dispersion down-comer and tedge is 0.3 in this loop; Described middle water-cooling wall upper end vertically enters upper header behind exit window, the bottom directly enters lower collecting box, disperses down-comer to consist of the loop with middle water-cooling wall, and the interior cross section ratio of middle water-cooling wall dispersion down-comer and tedge is 0.311 in this loop; Described right water-cooling wall upper end enters upper header, enters drum by two right water-cooling wall fairleads again, and the lower end enters lower collecting box, consists of the loop with two right water-cooling wall down-comers respectively, and the interior cross section ratio of the right water-cooling wall down-comer in this loop and tedge is 0.311; Described left water-cooling wall upper end enters upper header, enters drum by a left water-cooling wall fairlead again, and the lower end enters lower collecting box and a left water-cooling wall down-comer consists of a loop, and the interior cross section ratio of the left water-cooling wall down-comer in this loop and tedge is 0.35; The space is provided with loop economizer under the described rear hearth.
The present invention adopts the small-sized flue type waste heat boiler that is fit to doctor, danger waste burning system, has advantage rational in infrastructure, that the thermal efficiency is high, environmental protection index is high, and its main feature is as follows:
1, the flue of boiler of the present invention adopts ∏ type structure, front flue is arranged radiation heating-surface, and rear pass adopts convection heating surface, and the cavity of front flue has been avoided cohering of softening ash, flying dust is difficult for cohering on the heat convection face of rear pass in hardening after the radiation heating-surface cooling.The flue cavity makes the further sedimentation of flying dust simultaneously, is conducive to the control of the contamination indexs such as bioxin.This layout makes thermal power transfer reasonable simultaneously, has improved boiler efficiency.
2, boiler heating surface of the present invention is modular arrangement, so the capacity of boiler (min)～(max) can be accomplished very easily to increase and decrease along with the variation of the treating capacity that the doctor gives up, danger is useless.
3, boiler seal of the present invention improves greatly, has increased system effectiveness and economy.
4, boiler of the present invention adopts overhung construction, makes the expanded by heating of whole boiler even, increases the service life.
Description of drawings
Fig. 1 is the positive internal structure schematic diagram of flue type waste heat boiler of the present invention;
Fig. 2 is flue type waste heat boiler of the present invention side internal structure schematic diagram;
Fig. 3 is flue type waste heat boiler internal plane structural representation of the present invention.
The specific embodiment
By Fig. 1, Fig. 2 and Fig. 3 as seen, the present invention cures useless danger waste burning system flue type waste heat boiler and comprises drum 1, and drum 1 is installed on the platform 3 that is connected with four root posts 2.Column 2 is selected the channel-section steel Two bors d's oeuveres, and the cross section of column 2 is 220 * 200.The crossbeam of 300mm is adopted at the steelframe top.Platform 3 stair are divided into three layers, all arrange with the needs that adapt to operation and maintenance, and platform 3 adopts the expanded metal lath structure with stair, and berm width is 730mm, and stairway width is 600mm, and the gradient is 50 degree.Platform 3 is 2000N/m with column 2 Payloads allowed to bear
2, must not add without permission other load, do not allow not add simultaneously the Cutting platform of compensation yet.
Drum 1 stack shell external diameter Φ 1024mm, wall thickness 12mm, material 20 g, seal head material are 20g, thick 12mm.Under water orifice plate and shutter water separator are housed in the drum 1.The steam of separating upwards flows, and steam enters the louver separator that the drum air space passes through later on the drum top, flows through porous plate again, carries out again carbonated drink separation.Drum 1 ordinary water level allows water-level fluctuation ± 50mm at the following 25mm of drum center line.Drum 1 and interior arrangement are supported on platform 3 crossbeams, and the down-comer of drawing φ 108 and φ 89 on the drum 1 is until each water-cooling wall lower header.Two A48Y-16 are housed on the drum, and the spring safety valve of DN50 is to guarantee the boiler safety steam discharge.Drum is equipped with just and reads Pressure gauge, two high water gages of reading, an electric pole type water gage and a water level balance container in addition.It is two-colour fluviograph that height is read water gage.The low water gage of reading adopts electric contact point fluviograph (17 point), and the user is directly in the Access Control dish.Temperature point all adopts thermocouple.The thermocouple user takes care of oneself, and all have a measuring point place, must install, and is convenient to understand operating condition and changes.Each lower header arranges a blowoff valve, to satisfy the blowdown requirement.Also be provided with continuous blowdown pipe and chemical feed pipe on the drum 1.
Flue type waste heat boiler burner hearth 4 middle part right-side wall of the present invention are arranged four inspection doors, guarantee the safe operation of boiler.Burner hearth 4 is forward and backward twin furnace, and flue is H type structure, and front flue is arranged radiation heating-surface, and rear pass adopts convection heating surface.Burner hearth 4 adopts tubine formula furnace wall 5, makes the insulation of wall material by alumina silicate fiber felt, and the outer color steel of laying is to guarantee the attractive in appearance of boiler outer surface.Forward and backward twin furnace headroom cross section form after by Φ 60 * 3.5 seamless steel pipe seam band steels front, rear, left and right, in five water-cooling walls 6, water-cooling wall 6 is fin panel casing, pipe pitch S=110 millimeter.The water-cooling wall 6 outer rigid structures that are provided with form rigidity hanging basket formula structure to whole water-cooling wall, to increase globality and the explosion-proof ability of burner hearth 4.Fin panel casing 6 and affiliated furnace walls 5 own all are suspended on the platform 3 free wxpansion downwards by the water pipe system erecting by overhang.Furnace wall cooling 6 lower area inside are provided with wall with refractory lining, refracto, and what of wall with refractory lining, refracto are according to the variation adjustment of operating condition, to guarantee smoke temperature at outlet of waste heat boiler.Import and export flue and be suspended on the water-cooling wall, the heat-resisting insulating layer of the inboard laying of metal cylinder.Inlet flue duct 7 is considered the high-temperature flue gas of 1100 degree, and heat-resisting insulating layer is formed jointly by alumina silicate fiber felt and refractory brick (or heat-resisting castable); The flue-gas temperature of exhaust pass 8 is lower, and heat-resisting insulating layer is formed by alumina silicate fiber felt.
Middle water-cooling wall upper end vertically enters upper header 9 behind exit window, the bottom directly enters lower collecting box 10.Disperse down-comer to consist of the loop with the middle water-cooling wall of Φ 89 * 4.Cross section ratio was 0.311 in water-cooling wall disperseed between down-comer and the tedge in this loop.
Forward and backward, in three water-cooling walls be aggregated into one in the middle of upper collecting chamber 12, be communicated with by fairlead and the drum 1 of this upper collecting chamber 12 by four Φ 108 * 4.5 again.
The every side of side wall is divided left and right two independent loops, right water-cooling wall upper end enters upper header 9, right water-cooling wall fairlead by two Φ 89 * 4 enters drum again, the lower end enters lower collecting box 10, right water-cooling wall down-comer with two Φ 89 * 4 consists of the loop respectively, and interior cross section ratio is 0.311 between the right water-cooling wall down-comer in this loop and the tedge.Left water-cooling wall upper end enters upper header 9, left water-cooling wall fairlead by a Φ 108 * 4.5 enters drum again, the left water-cooling wall down-comer that the lower end enters lower collecting box 10 and a Φ 108 * 4.5 consists of a loop, and the interior cross section ratio of the left water-cooling wall down-comer in this loop and tedge is 0.35.
Subordinate's economizer entrance header (Φ 133 * 6) is introduced in feedwater from the bottom, then upwards by the economizer coiled pipe, economizer exit causes drum with the tube connector of Φ 57 * 3.5 to adverse current.
Flue type waste heat boiler design parameter of the present invention is as follows:
The present invention is the single drum-type boiler of low pressure Natural Circulation, incinerator high-temperature flue gas out enters front furnace by inlet flue duct 7, then flue gas up, exit window by middle fin panel casing top, pass through flag type steam-generating bank 11, economizer 12 under the road direction, low-temperature flue gas is finally by being discharged by exhaust pass 8 again.Boiler feedwater enters economizer 12 through the feedwater operating desk, enter again drum 1 after the heating, by Natural Circulation, the saturation water in the drum 1 enters each water-cooling wall lower header 10, tedge, upper collecting chamber 9 through down-comer by distributing pipe, then introduces drum 1 by the carbonated drink fairlead; Saturation water and saturated vapor mixture are interior after water separator separates at drum 1, enter main steam line by stop valve.
Claims (1)
1. cure the useless waste burning system flue type waste heat boiler of endangering for one kind, comprise drum, drum is installed on the platform that is connected with four root posts, be burner hearth in four root posts, the burner hearth below is provided with inlet flue duct and exhaust pass, it is characterized in that: before described burner hearth (4) adopts tubine formula furnace wall (5) to consist of, rear twin furnace, flue is ∏ type structure, before, before rear twin furnace headroom cross section forms after by seamless steel pipe seam band steel, after, left, right, in five water-cooling walls (6), this water-cooling wall (6) is fin panel casing, and water-cooling wall (6) itself and furnace wall (5) thereof all are suspended on the crossbeam of platform (3) by the water pipe system erecting by overhang; Upper header (9) in the middle of described front water-cooling wall upper end inclination 15 degree enter, the lower end directly enters lower collecting box (10), front water-cooling wall and front water-cooling wall disperse down-comer to consist of the loop, and the interior cross section ratio of front water-cooling wall dispersion down-comer and tedge is 0.311 in this loop; Upper header (9) in the middle of described rear water-cooling wall upper end inclination 15 degree enter, the bottom directly enters lower collecting box (10), be hung with flag type steam-generating bank (11) in the middle part of rear hearth top pipe, rear water-cooling wall disperses down-comer and rear water-cooling wall and flag type steam-generating bank (11) to consist of the loop, and the interior cross section ratio of rear water-cooling wall dispersion down-comer and tedge is 0.3 in this loop; Described middle water-cooling wall upper end vertically enters upper header (9) behind exit window, the bottom directly enters lower collecting box (10), disperse down-comer to consist of the loop with middle water-cooling wall, the interior cross section ratio of middle water-cooling wall dispersion down-comer and tedge is 0.311 in this loop; Forward and backward, in three water-cooling walls be aggregated into one in the middle of upper collecting chamber (12), be communicated with by four fairleads and drum (1) by this upper collecting chamber (12) again; Described right water-cooling wall upper end enters upper header (9), enter drum by two right water-cooling wall fairleads again, the lower end enters lower collecting box (10), consists of the loop with two right water-cooling wall down-comers respectively, and the interior cross section ratio of the right water-cooling wall down-comer in this loop and tedge is 0.311; Described left water-cooling wall upper end enters upper header (9), enter drum by a left water-cooling wall fairlead again, the lower end enters lower collecting box (10) and consists of a loop with a left water-cooling wall down-comer, and the interior cross section ratio of the left water-cooling wall down-comer in this loop and tedge is 0.35; The space is provided with loop economizer (13) under the described rear hearth.
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| CN 201210025444 CN102563594B (en) | 2012-02-02 | 2012-02-02 | Flue waste heat boiler for medical waste and hazardous waste incineration system |
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| CN 201210025444 CN102563594B (en) | 2012-02-02 | 2012-02-02 | Flue waste heat boiler for medical waste and hazardous waste incineration system |
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| CN103216810A (en) * | 2013-04-16 | 2013-07-24 | 无锡华光锅炉股份有限公司 | Water cooling wall arrangement structure of straw boiler |
| CN104296126B (en) * | 2014-11-14 | 2016-02-03 | 无锡华光锅炉股份有限公司 | A kind of waste-heat boiler superheater bracing or strutting arrangement |
| CN105509025A (en) * | 2015-03-26 | 2016-04-20 | 无锡华光锅炉股份有限公司 | Superheater hanger device for waste heat boiler |
| CN108443851A (en) * | 2018-02-12 | 2018-08-24 | 铂瑞能源环境工程有限公司 | Binary channels carbon element waste heat boiler |
| CN112268268B (en) * | 2020-09-03 | 2023-03-24 | 浙江双峰锅炉制造有限公司 | Medical waste treatment modularization combination formula waste heat device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3556059A (en) * | 1969-01-28 | 1971-01-19 | Foster Wheeler Corp | Two-pass furnace circuit arrangement for once-through vapor generator |
| US4539939A (en) * | 1981-12-15 | 1985-09-10 | Johnson William B | Fluidized bed combustion apparatus and method |
| US4473033A (en) * | 1983-08-01 | 1984-09-25 | Electrodyne Research Corp. | Circulating fluidized bed steam generator having means for minimizing mass of solid materials recirculated |
| FI122627B (en) * | 2004-10-18 | 2012-04-30 | Andritz Oy | Boiler and method of boiler |
| CN101625124A (en) * | 2008-07-08 | 2010-01-13 | 张雷 | Medical waste incinerator |
| CN201521971U (en) * | 2009-07-20 | 2010-07-07 | 邹永康 | Waste liquor burning boiler |
| CN102242921A (en) * | 2011-05-05 | 2011-11-16 | 中材节能股份有限公司 | Waste heat boiler for power generating system based on tail gas waste heat of pot-type carbon calcining furnace |
| CN202452462U (en) * | 2012-02-02 | 2012-09-26 | 安徽盛运机械股份有限公司 | Flue waste heat boiler for medical waste and hazardous waste incineration system |
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Address after: 231400 No. 265 Tongan Road, Anhui, Tongcheng Patentee after: Anhui Sheng Yun environmental protection (Group) Limited by Share Ltd Address before: 231400 No. 265 Tongan Road, Anhui, Tongcheng Patentee before: Anhui Shengyun Group |