CN203549760U - Improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler - Google Patents

Improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler Download PDF

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Publication number
CN203549760U
CN203549760U CN201320664236.6U CN201320664236U CN203549760U CN 203549760 U CN203549760 U CN 203549760U CN 201320664236 U CN201320664236 U CN 201320664236U CN 203549760 U CN203549760 U CN 203549760U
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China
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floating bed
generator
steam
steam generator
energy
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Withdrawn - After Issue
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CN201320664236.6U
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Chinese (zh)
Inventor
黄胜建
华佛根
倪冬生
王勇
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SHANGHAI QIHUANG ENERGY-SAVING EQUIPMENT Co Ltd
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SHANGHAI QIHUANG ENERGY-SAVING EQUIPMENT Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model relates to an improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler and belongs to the technical field of waste heat recycling equipment. The improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler comprises a steam generator, a hot water generator and a condensation floating bed energy saving dust falling emission reduction device; a fume inlet of the steam generator is connected with a fume pipeline; a fume outlet of the steam generator is connected with a fume inlet of the hot water generator by a pipeline; a fume outlet of the hot water generator is connected with a fume inlet of the condensation floating bed energy saving dust falling emission reduction device by a pipeline; a fume outlet of the condensation floating bed energy saving dust falling emission reduction device is connected with a chimney by a pipeline; at least more than one level of steam generator and/or hot water generator is arranged. According to the improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler, obvious heat and latent heat in fume can be fully used, the heat recovery rate is greatly improved, the heat formed by recycling waste heat is used for producing steam or hot water at different pressures, contents of dust, sulfide and NOx in the fume can be effectively reduced, and the aims of energy saving, dust falling and emission reduction are truly achieved.

Description

The energy-conservation depositing dust of modified condensing floating bed reduces discharging Multi-purpose boiler
[technical field]
The utility model relates to waste heat recovery apparatus technical field, and specifically the energy-conservation depositing dust of a kind of modified condensing floating bed reduces discharging Multi-purpose boiler.
[background technology]
In energy device, very major part is to obtain energy by combustion fuel, such as Industrial Boiler, steel mill's blast furnace, annealing furnace, lime calcining furnace, cement kiln, glass furnace etc.In these equipment, fume emission is main heat loss and pollution sources, and exhaust temperature is higher, and heat loss is just larger.In the flue gas of discharge, the moisture content that not only has fuel to carry, and after fuel combustion, also will produce flue dust, sulfide, nitrogen oxide and H 2o.For preventing steam dewing corrosion, smog discharge temperature is generally all more than 100 ℃, and at this moment steam can not condense, and is superheat state, and in flue gas, the sensible heat of steam and latent heat together discharge the heat with flue gas and enter atmosphere.Therefore,, while considering heat loss, generally all with the low heat valve of fuel, calculate heat loss.The a lot of waste heat recovery projects of China, are substantially all the sensible heat heating water generates steam (or hot water) of utilizing in hot flue gas, make heat recovery have certain restriction.When producing steam, due to the impact that saturated-steam temperature is stressed, exhaust gas temperature can not be down to below saturated-steam temperature, heat recovery is subject to certain restrictions.For 100 ℃ of latent heat heats in following low-temperature flue gas are recycled, just must consider the feature of vapor quality, necessary reclaimer is set, exhaust gas temperature is down to optimum state, make cost of investment and cost recovery reach best price/performance ratio.Current waste heat recovery apparatus can not make full use of waste heat and the latent heat in flue gas, and can not carry out effective dedusting and desulfurization.Therefore,, if a kind of waste heat recovery apparatus can be provided, during heat in recovered flue gas, sensible heat and the latent heat of vaporization in as far as possible can many recovered flue gas, reduce the heat loss due to exhaust gas of flue gas, will have very important significance.
[utility model content]
The purpose of this utility model is exactly will solve above-mentioned deficiency and provide the energy-conservation depositing dust of a kind of modified condensing floating bed to reduce discharging Multi-purpose boiler, can not only make full use of sensible heat and latent heat in flue gas, greatly improve heat recovery efficiency, the heat of waste heat recovery is produced to steam or the hot water of different pressures, and can effectively reduce the content of flue dust in flue gas, sulfide, nitrogen oxide, really reach the object of energy-conservation, depositing dust, reduction of discharging.
Design for achieving the above object the energy-conservation depositing dust of a kind of modified condensing floating bed and reduce discharging Multi-purpose boiler, comprise steam generator, hot water generator, the energy-conservation depositing dust emission reduction device of condensing floating bed, the mouth that enters of described steam generator connects flue, the outlet flue of described steam generator connects the mouth that enters of hot water generator by pipeline, the outlet flue of described hot water generator connects the mouth that enters of the energy-conservation depositing dust emission reduction device of condensing floating bed by pipeline, the outlet flue of the energy-conservation depositing dust emission reduction device of described condensing floating bed connects chimney by pipeline, more than described steam generator and/or hot water generator are at least provided with one-level respectively.
The energy-conservation depositing dust emission reduction device of described condensing floating bed comprises import smoke-box, floating bed heat exchanger, outlet smoke-box, dust-settling compartment and depositing dust filtering pond, described import smoke-box, floating bed heat exchanger, outlet smoke-box, dust-settling compartment are from top to bottom connected successively with depositing dust filtering pond, in described import smoke-box, floating bed generator is installed, described floating bed generator connects depositing dust filtering pond by pipeline, in described import smoke-box, the below of floating bed generator generates floating bed, and the outlet flue of the energy-conservation depositing dust emission reduction device of described condensing floating bed is arranged on the side of dust-settling compartment.
The outlet flue place of described dust-settling compartment side is provided with gas-liquid separator, and the gas outlet of described gas-liquid separator connects air-introduced machine by pipeline, and the described air-introduced machine other end connects chimney by pipeline.
Described steam generator comprises one-level steam generator and second steam generator, the mouth that enters of described one-level steam generator connects flue, the outlet flue of described one-level steam generator connects the mouth that enters of second steam generator, and the outlet flue of described second steam generator connects the mouth that enters of hot water generator.
On the venthole pipeline of described one-level steam generator, second steam generator, be separately installed with one-level steam-water separator, secondary steam-water separator, described one-level steam generator and one-level steam-water separator and second steam generator and secondary steam-water separator form respectively independent natural cycle system.
The venthole of described one-level steam-water separator, secondary steam-water separator connects respectively the air intake of I and II steam mixer by pipeline, the liquid outlet of described I and II steam mixer connects the inlet of second steam generator by drain valve group pipeline.
The hot water outlet of described floating bed heat exchanger connects the water inlet of hot water generator by pipeline, on the pipeline between described floating bed heat exchanger and hot water generator, boiler feed pump is installed.
The delivery port of described hot water generator connects respectively the inlet of second steam generator and heat exchanger by three-way control valve.
Compared with the existing technology, tool has the following advantages the utility model:
1, after the utility model, the discharge temperature of flue gas can be down to 60~80 ℃, not only can make full use of the sensible heat in flue gas, and the latent heat in can recovered flue gas, thereby has greatly improved organic efficiency;
2, the carrier of floating bed is water, and the flue dust that can effectively adsorb in flue gas also can dissolve sulfide, the nitrogen oxide in flue gas, thereby effectively reduces the discharge of harmful substance in flue gas, and can not produce harmful substance secondary pollution;
3, in the energy-conservation depositing dust emission-reducing system of condensing floating bed, have special chemicals dosing plant, making the water in floating bed is alkalescence, prevents equipment cold end corrosion, reduce sulfide, nitrogen oxide discharge capacity;
4, in the energy-conservation depositing dust emission reduction device of condensing floating bed, have gas-liquid separation device, the harmful liquid discharging after floating bed in flue gas is separated, making the flue gas of discharging is clean flue gas;
5, the energy-conservation depositing dust emission reduction device of condensing floating bed water is recirculated water, can not increase the water consumption of equipment;
6, applied widely, can not only output different pressures and the hot water of temperature, can also produce the steam of multistage pressure;
7,, because adopting multistage steam generator, can, according to the height of flue-gas temperature and user's needs, produce the steam of different pressures;
8, when steam generator or hot water generator change flue gas-air heat exchanger into, just can add hot-air.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model;
In figure: 1, one, second steam blender 2, one-level steam-water separator 3, one-level steam generator 4, one-level steam generator feed pump 5, secondary steam-water separator 6, second steam generator 7, boiler feed pump 8, three-way control valve 9, hot water generator 10, the energy-conservation depositing dust emission reduction device 11 of condensing floating bed, softened water tank 12, air-introduced machine 13, chimney 14, heat exchanger 15, drain valve group 16, import smoke-box 17, floating bed heat exchanger 18, outlet smoke-box 19, dust-settling compartment 20, depositing dust filtering pond 21, floating bed generator 22, floating bed 23, gas-liquid separator.
[specific embodiment]
Below in conjunction with accompanying drawing, the utility model is done to following further illustrating:
As shown in Figure 1, the utility model comprises: steam generator, hot water generator 9, the energy-conservation depositing dust emission reduction device 10 of condensing floating bed, the mouth that enters of steam generator connects flue, the outlet flue of steam generator connects the mouth that enters of hot water generator by pipeline, the outlet flue of hot water generator connects the mouth that enters of the energy-conservation depositing dust emission reduction device of condensing floating bed by pipeline, the outlet flue of the energy-conservation depositing dust emission reduction device of condensing floating bed connects chimney 13 by pipeline, more than steam generator and/or hot water generator are at least provided with one-level respectively, the energy-conservation depositing dust emission reduction device of condensing floating bed comprises import smoke-box 16, floating bed heat exchanger 17, outlet smoke-box 18, dust-settling compartment 19 and depositing dust filtering pond 20, import smoke-box, floating bed heat exchanger, outlet smoke-box, dust-settling compartment is from top to bottom connected successively with depositing dust filtering pond, floating bed generator 21 is installed in import smoke-box, floating bed generator connects depositing dust filtering pond by pipeline, in import smoke-box, the below of floating bed generator generates floating bed 22, the outlet flue of the energy-conservation depositing dust emission reduction device of condensing floating bed is arranged on the side of dust-settling compartment, the outlet flue place of dust-settling compartment side is provided with gas-liquid separator 23, the gas outlet of gas-liquid separator connects air-introduced machine 12 by pipeline, the air-introduced machine other end connects chimney by pipeline.
In the utility model, steam generator comprises one-level steam generator 3 and second steam generator 6, the mouth that enters of one-level steam generator connects flue, the outlet flue of one-level steam generator connects the mouth that enters of second steam generator, and the outlet flue of second steam generator connects the mouth that enters of hot water generator; On the venthole pipeline of one-level steam generator, second steam generator, be separately installed with one-level steam-water separator 2, secondary steam-water separator 5, one-level steam generator and one-level steam-water separator and second steam generator and secondary steam-water separator form respectively independent natural cycle system; The venthole of one-level steam-water separator, secondary steam-water separator connects respectively the air intake of I and II steam mixer 1 by pipeline, the liquid outlet of I and II steam mixer connects the inlet of second steam generator by drain valve group 15 pipelines; The hot water outlet of floating bed heat exchanger connects the water inlet of hot water generator by pipeline, boiler feed pump 7 is installed on the pipeline between floating bed heat exchanger and hot water generator, and the delivery port of hot water generator connects respectively the inlet of second steam generator and heat exchanger 14 by three-way control valve 8.
The various stoves such as boiler are in UTILIZATION OF VESIDUAL HEAT IN, because owner's requirement needs output steam, under this operating mode, the exhaust gas temperature of waste heat apparatus is generally more than 140~150 ℃, traditional waste heat recovery apparatus can not make full use of waste heat and the latent heat in flue gas, and can not carry out effective dedusting and desulfurization.The utility model is a kind of fully Mist heat recovering and latent heat, and can apply the energy-conservation depositing dust emission reduction device of condensing floating bed, and the heat of waste heat recovery is produced to the steam of different pressures or the Multi-purpose boiler of hot water.According to the height of flue-gas temperature, produce the steam of different pressures, be particularly suitable for utilizing flue-gas temperature 300 ℃ of following occasions, to produce the novel waste heat energy-saving environmental protection device of steam (or hot water).Through the energy-conservation depositing dust of condensing floating bed described in the utility model, reduce discharging after Multi-purpose boiler, its discharge temperature can be down to 60~80 ℃, can make full use of sensible heat and latent heat in flue gas, thereby greatly improves organic efficiency.Because this equipment designs special condensing floating bed structure and system, not only can improve heat recovery efficiency, and can effectively reduce the content of flue dust (for example PM10, PM2.5) in flue gas, sulfide, nitrogen oxide, really reach the object of energy-conservation, depositing dust, reduction of discharging.
The utility model is to utilize water absorption or basic principle and feature of release heat in vaporization and condensation process, in conjunction with containing flue dust in flue gas, sulfide, the characteristic of the noxious pollutants such as nitrogen oxide, by special project organization and system---the energy-conservation depositing dust emission reduction device of condensing floating bed, hot water generator (or gas heat-exchanger), multistage steam generator and corresponding system, solve multiple pressure heat recovery steam generator (or hot water generator, gas heat-exchanger) and recovered flue gas in the difficult problem of the latent heat of vaporization, and when reclaiming heat, flue dust in absorption flue gas, sulfide, nitrogen oxide, reach energy-conservation, depositing dust, the object reducing discharging.This patent can not only be produced steam or the hot water of multiple pressure, simultaneously energy vapour, water dual-purpose.
The utility model is according to the character of water and heat exchange principle, utilize water under different temperatures and pressure, vaporize and condensation process in absorb and a kind of special installation of release heat.This patent equipment not only can utilize steam or the hot water of the multiple pressure of the aquatic product of same waste-heat, also can heated air or other liquid medium.In the utility model equipment, not only carry out exchange heat, when carrying out exchange heat, can also adsorb the harmful substances such as flue dust, sulfide and nitrogen oxide in flue gas, reach energy-conservation, depositing dust, reduction of discharging object.The utility model mainly consists of the following components:
(1) first flue gas enters one-level steam generator and second steam generator, produce the steam water interface of different pressures, the steam of isolating different pressures P1, P2 through one-level steam-water separator and secondary steam-water separator, the water of separating returns to original steam generator and continues to be subject to thermal evaporation.Also the steam of above-mentioned pressure can be delivered to I and II steam mixer and mix, produce pressure P 3 steam that need, the condensate water in I and II steam mixer is delivered to second steam generator by drain valve group and evaporates simultaneously.Flue gas after cooling enters hot water generator.Because of the character of carbonated drink, cannot make the flue-gas temperature after hot water generator be down to the temperature needing, therefore, need to continue cooling with the energy-conservation depositing dust emission reduction device of condensing floating bed.
(2) the floating bed generator of the energy-conservation depositing dust emission reduction device of condensing floating bed produces water smoke, mix with the hot flue gas in import smoke-box, absorb the heat in flue gas, and with the decline of flue-gas temperature, superheated steam in flue gas is cooled to saturated vapor, generate the floating bed of gas, vapour, water mixing, and adsorb flue dust, sulfide, the nitrogen oxide in flue gas.
(3) gas, the vapour of floating bed in the energy-conservation depositing dust emission reduction device of condensing floating bed, aqueous mixtures enters floating bed heat exchanger with smoke gas flow and quid pro quo cold water carries out exchange heat.When the heat in flue gas exchanges, the decline of Yin Wendu and make the cooling release heat of steam in floating bed heat exchanger and healed water carries out condensation after exchange heat.
(4) condensate liquid in flue gas, because certainly reentering depositing dust filtering pond, gas is the gas-liquid separator in the energy-conservation depositing dust emission reduction device of condensing floating bed by induced draft blower withdraws, and the residual droplets in flue gas is separated, and clean flue gas is taken out and is caused chimney by air-introduced machine.
(5) water after the heating of the energy-conservation depositing dust emission reduction device of condensing floating bed by boiler feed pump, pressurizeed after as the feedwater of hot water generator.Hot water after hot water generator heating, by main control requirement, through the flow of three-way control valve control second steam generator and heat exchanger, produces hot water and steam.
(6), when heated medium is gas or other liquid medium, change hot water generator and I and II steam generator into corresponding firing equipment.
In the utility model, the energy-conservation depositing dust emission reduction device of condensing floating bed is applied for a patent in advance, and number of patent application is 201310452077.8 and 201320612620.1; Before the energy-conservation depositing dust emission reduction device of condensing floating bed, multistage steam generator and hot water generator are installed, according to the height of output steam pressure, multistage steam generator (and/or hot water generator) can be one-level, can be also reaching or above grade two; One-level steam-water separator, secondary steam-water separator are installed respectively on the outlet steam-water pipe of one-level steam generator, second steam generator, and steam generator and steam-water separator form two groups of independent natural cycle systems; The hot water of hot water generator heating, by three-way control valve control, is used as hot water or steam generator feedwater respectively; When heated air or other liquid medium, change multistage steam generator and hot water generator into corresponding heat-exchange apparatus.

Claims (8)

1. the energy-conservation depositing dust of modified condensing floating bed reduces discharging Multi-purpose boiler, it is characterized in that: comprise steam generator, hot water generator, the energy-conservation depositing dust emission reduction device of condensing floating bed, the mouth that enters of described steam generator connects flue, the outlet flue of described steam generator connects the mouth that enters of hot water generator by pipeline, the outlet flue of described hot water generator connects the mouth that enters of the energy-conservation depositing dust emission reduction device of condensing floating bed by pipeline, the outlet flue of the energy-conservation depositing dust emission reduction device of described condensing floating bed connects chimney by pipeline, more than described steam generator and/or hot water generator are at least provided with one-level respectively.
2. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 1 reduces discharging Multi-purpose boiler, it is characterized in that: the energy-conservation depositing dust emission reduction device of described condensing floating bed comprises import smoke-box, floating bed heat exchanger, outlet smoke-box, dust-settling compartment and depositing dust filtering pond, described import smoke-box, floating bed heat exchanger, outlet smoke-box, dust-settling compartment is from top to bottom connected successively with depositing dust filtering pond, in described import smoke-box, floating bed generator is installed, described floating bed generator connects depositing dust filtering pond by pipeline, in described import smoke-box, the below of floating bed generator generates floating bed, the outlet flue of the energy-conservation depositing dust emission reduction device of described condensing floating bed is arranged on the side of dust-settling compartment.
3. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 2 reduces discharging Multi-purpose boiler, it is characterized in that: the outlet flue place of described dust-settling compartment side is provided with gas-liquid separator, the gas outlet of described gas-liquid separator connects air-introduced machine by pipeline, and the described air-introduced machine other end connects chimney by pipeline.
4. the energy-conservation depositing dust of condensing floating bed reduces discharging Multi-purpose boiler as claimed in claim 2 or claim 3, it is characterized in that: described steam generator comprises one-level steam generator and second steam generator, the mouth that enters of described one-level steam generator connects flue, the outlet flue of described one-level steam generator connects the mouth that enters of second steam generator, and the outlet flue of described second steam generator connects the mouth that enters of hot water generator.
5. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 4 reduces discharging Multi-purpose boiler, it is characterized in that: on the venthole pipeline of described one-level steam generator, second steam generator, be separately installed with one-level steam-water separator, secondary steam-water separator, described one-level steam generator and one-level steam-water separator and second steam generator and secondary steam-water separator form respectively independent natural cycle system.
6. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 5 reduces discharging Multi-purpose boiler, it is characterized in that: the venthole of described one-level steam-water separator, secondary steam-water separator connects respectively the air intake of I and II steam mixer by pipeline, the liquid outlet of described I and II steam mixer connects the inlet of second steam generator by drain valve group pipeline.
7. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 6 reduces discharging Multi-purpose boiler, it is characterized in that: the hot water outlet of described floating bed heat exchanger connects the water inlet of hot water generator by pipeline, on the pipeline between described floating bed heat exchanger and hot water generator, boiler feed pump is installed.
8. the energy-conservation depositing dust of modified condensing floating bed as claimed in claim 7 reduces discharging Multi-purpose boiler, it is characterized in that: the delivery port of described hot water generator connects respectively the inlet of second steam generator and heat exchanger by three-way control valve.
CN201320664236.6U 2013-10-25 2013-10-25 Improved condensation floating bed energy-saving dust falling emission reduction multipurpose boiler Withdrawn - After Issue CN203549760U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528038A (en) * 2013-10-25 2014-01-22 上海蕲黄节能环保设备有限公司 Condensation type float bed energy-saving dust-and-emission-reducing multipurpose boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528038A (en) * 2013-10-25 2014-01-22 上海蕲黄节能环保设备有限公司 Condensation type float bed energy-saving dust-and-emission-reducing multipurpose boiler
CN103528038B (en) * 2013-10-25 2015-01-14 上海蕲黄节能环保设备有限公司 Condensation type float bed energy-saving dust-and-emission-reducing multipurpose boiler

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