CN103471121B - The energy-conservation depositing dust emission reduction device of condensing floating bed - Google Patents
The energy-conservation depositing dust emission reduction device of condensing floating bed Download PDFInfo
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- CN103471121B CN103471121B CN201310452077.8A CN201310452077A CN103471121B CN 103471121 B CN103471121 B CN 103471121B CN 201310452077 A CN201310452077 A CN 201310452077A CN 103471121 B CN103471121 B CN 103471121B
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- Y—GENERAL 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
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The present invention relates to heat recovery technology field, the specifically energy-conservation depositing dust emission reduction device of a kind of condensing floating bed, comprise the import smoke-box (9) connected successively from top to bottom, floating bed heat exchanger (6), outlet smoke-box (5), dust-settling compartment (4) and depositing dust filtering pond (1), floating bed generator (8) is installed in import smoke-box (9), floating bed generator (8) pipeline connects depositing dust filtering pond (1), water is loaded with in depositing dust filtering pond (1), floating bed water injecting pump (2) is provided with between floating bed generator (8) and depositing dust filtering pond (1), interior floating bed generator (8) below of import smoke-box (9) generates floating bed (7), floating bed heat exchanger (6) is arranged on floating bed (7) below, dust-settling compartment (4) side is provided with gas outlet (14) and connects with gas-liquid separator (10), the present invention can not only carry out exchange heat, and can also adsorb the harmful substances such as flue dust, sulfide and nitrogen oxide in flue gas, thus reach energy-conservation, depositing dust, reduction of discharging object.
Description
[technical field]
The present invention relates to heat recovery technology field, specifically the energy-conservation depositing dust emission reduction device of a kind of condensing floating bed.
[background technology]
In energy device, very major part utilizes combustion fuel to obtain energy, 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 larger.In the flue gas of discharge, not only there is the moisture content that fuel carries, and flue dust, combustion product CO can be produced after burning
2, SO
2, NO
xand H
2o.For preventing steam dewing corrosion, smog discharge temperature is generally all more than 100 DEG C, and at this moment steam can not condense, and become superheat state, the sensible heat of steam and latent heat will enter air with fume emission.Thus when considering heat loss, generally all calculate heat loss with the low heat valve of fuel.The a lot of waste heat recovery project of China, is substantially all sensible heat heating water generates steam (or hot water) utilized in heat smoke, makes heat recovery have certain restriction.Less than 100 DEG C low-temperature flue gas heat recovery just must consider the feature of recovery of latent heat, and exhaust gas temperature is down to optimum state, make cost of investment and cost recovery reach best price/performance ratio.Therefore, during heat in recovered flue gas, if can the latent heat of vaporization in many recovered flue gas, reduce heat loss and the CO2 emissions of flue gas, overcome legacy equipment can not utilize the latent heat in flue gas and the shortcoming of effective dedusting and desulfurization can not be carried out, will have very important significance.
[summary of the invention]
Object of the present invention is exactly will solve above-mentioned deficiency and provide a kind of condensing floating bed energy-conservation depositing dust emission reduction device, not only carry out exchange heat, and while carrying out exchange heat, the harmful substances such as the flue dust in flue gas, sulfide and nitrogen oxide can also be adsorbed, thus reach energy-conservation, depositing dust, reduction of discharging object.
Design the energy-conservation depositing dust emission reduction device of a kind of condensing floating bed for achieving the above object, comprise import smoke-box 9, floating bed heat exchanger 6, outlet smoke-box 5, dust-settling compartment 4 and depositing dust filtering pond 1, described import smoke-box 9, floating bed heat exchanger 6, outlet smoke-box 5, dust-settling compartment 4 is from top to bottom connected successively with depositing dust filtering pond 1, in described import smoke-box 9, floating bed generator 8 is installed, described floating bed generator 8 connects depositing dust filtering pond 1 by pipeline, water is loaded with in described depositing dust filtering pond 1, pipeline between described floating bed generator 8 and depositing dust filtering pond 1 is provided with floating bed water injecting pump 2, in described import smoke-box 9, the below of floating bed generator 8 generates and has floating bed 7, described floating bed heat exchanger 6 is arranged on below floating bed 7, described dust-settling compartment 4 side is provided with gas outlet 14.
The gas outlet 14 of described dust-settling compartment 4 side connects air-introduced machine 11 by pipeline, and described air-introduced machine 11 other end connects chimney 13 by pipeline.
Pipeline between the gas outlet 14 of described dust-settling compartment 4 side and air-introduced machine 11 is provided with gas-liquid separator 10, and the delivery port 15 of described gas-liquid separator 10 is connected with depositing dust filtering pond 1.
Pipeline between described floating bed generator 8 and floating bed water injecting pump 2 is provided with floating bed chemicals dosing plant 3.
Described floating bed generator 8 is nozzle or revolving cup.
Described floating bed heat exchanger 6 is recuperative heat exchanger or hot-pipe type heat-exchanger.
Compared with the existing technology, tool has the following advantages in the present invention:
(1) after the energy-conservation depositing dust emission reduction device of condensing floating bed of the present invention, its discharge temperature can be down to 60 ~ 80 DEG C, not only can utilize the sensible heat in flue gas, and can latent heat in recovered flue gas, thus substantially increases organic efficiency;
(2) because the carrier of floating bed is water, can effectively adsorb the flue dust in flue gas and dissolve the sulfide, nitrogen oxide etc. in flue gas, thus effectively reduce the discharge of harmful substance in flue gas, and harmful substance secondary pollution can not be produced, reach the object of energy-conservation, depositing dust, reduction of discharging;
(3) be provided with special chemicals dosing plant in system, make the water in floating bed be alkalescence, equipment cold end corrosion can be prevented;
(4) system afterbody is provided with gas-liquid separation device, is separated, makes the flue gas of discharge be clean flue gas with the harmful liquid that will discharge after floating bed in flue gas;
(5) floating bed water is recirculated water, thus can not increase the water consumption of equipment, economizes on resources.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
In figure: 1, depositing dust filtering pond 2, floating bed water injecting pump 3, floating bed chemicals dosing plant 4, dust-settling compartment 5, outlet smoke-box 6, floating bed heat exchanger 7, floating bed 8, floating bed generator 9, import smoke-box 10, gas-liquid separator 11, air-introduced machine 12, water circulating pump 13, chimney 14, gas outlet 15, delivery port.
[detailed description of the invention]
Below in conjunction with accompanying drawing, following further illustrating is done to the present invention:
As shown in Figure 1, the present invention includes: import smoke-box 9, floating bed heat exchanger 6, outlet smoke-box 5, dust-settling compartment 4 and depositing dust filtering pond 1, import smoke-box 9, floating bed heat exchanger 6, outlet smoke-box 5, dust-settling compartment 4 is from top to bottom connected successively with depositing dust filtering pond 1, floating bed generator 8 is installed in import smoke-box 9, this floating bed generator 8 can be the various structures such as nozzle or revolving cup, floating bed generator 8 connects depositing dust filtering pond 1 by pipeline, water is loaded with in depositing dust filtering pond 1, upper end, depositing dust filtering pond 1 connects filling pipe, pipeline between floating bed generator 8 and depositing dust filtering pond 1 is provided with floating bed water injecting pump 2, pipeline between floating bed generator 8 and floating bed water injecting pump 2 is provided with floating bed chemicals dosing plant 3, in import smoke-box 9, the below of floating bed generator 8 generates and has floating bed 7, floating bed heat exchanger 6 is arranged on below floating bed 7, the side of this floating bed heat exchanger 6 is provided with cooling water inlet and hot water outlet, cooling water inlet is connected with cold water pipes, hot water outlet is connected with hot water pipeline, hot water pipeline is connected to heat user by water circulating pump 12, to provide hot water to it, dust-settling compartment 4 side is provided with gas outlet 14, this gas outlet 14 connects air-introduced machine 11 by pipeline, air-introduced machine 11 other end connects chimney 13 by pipeline, pipeline between gas outlet 14 and air-introduced machine 11 is provided with gas-liquid separator 10, the delivery port 15 of gas-liquid separator 10 is connected with depositing dust filtering pond 1, and floating bed heat exchanger 6 is recuperative heat exchanger or hot-pipe type heat-exchanger.
The present invention is according to heat exchange principle, utilize a kind of special installation that water is vaporized at different temperatures with absorption in condensation process and release heat, in this patent equipment, not only carry out exchange heat, and while carrying out exchange heat, the flue dust in flue gas, sulfide and nitrogen oxide harmful substance can also be adsorbed, reach energy-conservation, depositing dust, reduction of discharging object.Its structure and working principle mainly comprises following a few partial content:
(1) floating bed water enters floating bed generator and produces water smoke after the pressurization of floating bed water injecting pump, mix with the heat smoke in import smoke-box, the heat absorbed in flue gas produces steam, and with the decline of flue-gas temperature, superheated steam in flue gas is cooled to saturated vapor, thus generate the floating bed of gas, vapour, water mixing, and adsorb flue dust, sulfide, the nitrogen oxide in flue gas;
(2) gas in floating bed, vapour, aqueous mixtures flow to flue gas and carry out exchange heat into floating bed heat exchanger and quid pro quo cold water.When heat in flue gas exchanges, the decline of Yin Wendu and make the vapour condensation release heat in floating bed heat exchanger and healed water carry out exchange heat, condensed water flows to inlet/outlet smoke-box along with flue gas;
(3) condensate liquid in the cooled flue gas of outlet smoke-box is entered, because certainly reentering dust-settling compartment and enter depositing dust filtering pond, gas then by induced draft blower withdraws through gas-liquid separator, residual droplets in flue gas is separated, liquid after separation enters depositing dust filtering pond, and clean flue gas is taken out by air-introduced machine and caused chimney;
(4) in depositing dust filtering pond, dust-laden mixed liquor, after filtering, is pressurizeed by floating bed water injecting pump and reenters floating bed generator.For preventing corrosion, water, before entering floating bed generator, carries out agent-feeding treatment according to water quality, and chemical feeding quantity can be determined according to the water quality in outlet smoke-box, to make the condensate liquid entering outlet smoke-box for alkalescent.
Due to current in the utilization of waste heat, exhaust gas temperature just arranges waste heat recovery apparatus more than 140 ~ 150 DEG C, and after waste heat recovery apparatus utilizes, its exhaust gas temperature is all more than 100 DEG C, thus the latent heat in flue gas can not be utilized, and effective dedusting and desulfurization can not be carried out.The present invention is a kind of waste heat recycling system that can reclaim latent heat, i.e. the energy-conservation depositing dust emission reduction device of condensing floating bed, and its novel waste heat being particularly suitable for being used in less than 150 DEG C occasions reclaims energy-saving environmental protection device.After the energy-conservation depositing dust emission reduction device of condensing floating bed of the present invention, its discharge temperature can be down to 60 ~ 80 DEG C, not only can utilize the sensible heat in flue gas, and can latent heat in recovered flue gas, thus substantially increase organic efficiency, and due to the special floating bed structure of this equipment de-sign and system, not only heat transfer efficiency can be improved, and effectively can reduce the content of flue dust (such as PM10, PM2.5) in flue gas, sulfide, nitrogen oxide, really reach the object of energy-conservation, depositing dust, reduction of discharging.
The present invention, by the restriction of above-mentioned embodiment, change, the modification done, substitutes, combines, simplifies under other any does not deviate from Spirit Essence of the present invention and principle, all should be equivalent substitute mode, is included within protection scope of the present invention.
Claims (6)
1. the energy-conservation depositing dust emission reduction device of condensing floating bed, it is characterized in that: comprise import smoke-box (9), floating bed heat exchanger (6), outlet smoke-box (5), dust-settling compartment (4) and depositing dust filtering pond (1), described import smoke-box (9), floating bed heat exchanger (6), outlet smoke-box (5), dust-settling compartment (4) is from top to bottom connected successively with depositing dust filtering pond (1), in described import smoke-box (9), floating bed generator (8) is installed, described floating bed generator (8) connects depositing dust filtering pond (1) by pipeline, water is loaded with in described depositing dust filtering pond (1), pipeline between described floating bed generator (8) and depositing dust filtering pond (1) is provided with floating bed water injecting pump (2), the below of the interior floating bed generator (8) of described import smoke-box (9) generates floating bed (7), described floating bed heat exchanger (6) is arranged on floating bed (7) below, described dust-settling compartment (4) side is provided with gas outlet (14).
2. the energy-conservation depositing dust emission reduction device of condensing floating bed as claimed in claim 1, it is characterized in that: the gas outlet (14) of described dust-settling compartment (4) side connects air-introduced machine (11) by pipeline, and described air-introduced machine (11) other end connects chimney (13) by pipeline.
3. the energy-conservation depositing dust emission reduction device of condensing floating bed as claimed in claim 2, it is characterized in that: the pipeline between the gas outlet (14) of described dust-settling compartment (4) side and air-introduced machine (11) is provided with gas-liquid separator (10), the delivery port (15) of described gas-liquid separator (10) is connected with depositing dust filtering pond (1).
4. the energy-conservation depositing dust emission reduction device of the condensing floating bed as described in claim 1,2 or 3, is characterized in that: the pipeline between described floating bed generator (8) and floating bed water injecting pump (2) is provided with floating bed chemicals dosing plant (3).
5. the energy-conservation depositing dust emission reduction device of condensing floating bed as claimed in claim 4, is characterized in that: described floating bed generator (8) is nozzle or revolving cup.
6. the energy-conservation depositing dust emission reduction device of condensing floating bed as claimed in claim 5, is characterized in that: described floating bed heat exchanger (6) is recuperative heat exchanger or hot-pipe type heat-exchanger.
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| CN201310452077.8A CN103471121B (en) | 2013-09-27 | 2013-09-27 | The energy-conservation depositing dust emission reduction device of condensing floating bed |
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| CN201310452077.8A CN103471121B (en) | 2013-09-27 | 2013-09-27 | The energy-conservation depositing dust emission reduction device of condensing floating bed |
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| CN103471121B true CN103471121B (en) | 2015-07-29 |
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| CN104707461B (en) * | 2015-03-05 | 2016-09-21 | 黄胜建 | Water-bath type desulphurization denitration energy-saving emission-reducing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586070Y (en) * | 2002-12-04 | 2003-11-12 | 宋云星 | Fume desulfurizing, dusting and black removing device of industrial boiler |
| CN2735180Y (en) * | 2004-08-02 | 2005-10-19 | 王智勇 | Apparatus for waste heat recovery, desulfurization and dust removal |
| CN203533588U (en) * | 2013-09-27 | 2014-04-09 | 上海蕲黄节能环保设备有限公司 | Condensation type energy conservation, dust settlement and emission reduction device with floating bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105817A (en) * | 1982-12-08 | 1984-06-19 | Mitsubishi Heavy Ind Ltd | Dust collection apparatus for waste heat recovery |
| JP3797053B2 (en) * | 2000-02-03 | 2006-07-12 | Ｊｆｅエンジニアリング株式会社 | Waste gas incinerator exhaust gas treatment method and equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586070Y (en) * | 2002-12-04 | 2003-11-12 | 宋云星 | Fume desulfurizing, dusting and black removing device of industrial boiler |
| CN2735180Y (en) * | 2004-08-02 | 2005-10-19 | 王智勇 | Apparatus for waste heat recovery, desulfurization and dust removal |
| CN203533588U (en) * | 2013-09-27 | 2014-04-09 | 上海蕲黄节能环保设备有限公司 | Condensation type energy conservation, dust settlement and emission reduction device with floating bed |
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Effective date of registration: 20191219 Address after: Luojiu Town, Zhijiang Dong Autonomous County, Huaihua City, Hunan Province Patentee after: Huaihua Qihuang energy saving and environmental protection equipment Co., Ltd. Address before: 200129, room 195, 241 Boxing Road, Shanghai, Pudong New Area Patentee before: Shanghai Qihuang Energy-saving Equipment Co., Ltd. |
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