CN103629956A - Flue gas waste heat recovery and dust removal device - Google Patents

Flue gas waste heat recovery and dust removal device Download PDF

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Publication number
CN103629956A
CN103629956A CN201310639979.2A CN201310639979A CN103629956A CN 103629956 A CN103629956 A CN 103629956A CN 201310639979 A CN201310639979 A CN 201310639979A CN 103629956 A CN103629956 A CN 103629956A
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China
Prior art keywords
dust removal
flue gas
waste heat
chamber
heat exchange
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Pending
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CN201310639979.2A
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Chinese (zh)
Inventor
李公法
章易坤
李拯
赵颢云
赵亚平
蒋国璋
余震
孔建益
熊禾根
谢良喜
肖文涛
刘佳
程福维
张启炯
高旭峰
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Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Technology WHUST
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Priority to CN201310639979.2A priority Critical patent/CN103629956A/en
Publication of CN103629956A publication Critical patent/CN103629956A/en
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse 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

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Abstract

本发明公开了一种烟气余热回收及除尘装置，该装置首先采用多个热交换管吸收锅炉烟气的余热，然后冷烟气进入到除尘室底部，除尘室内的喷淋装置对烟气进行降尘，然后无尘气体从除尘室上部的排气口排出，污水从除尘室底部的污水出口排到污水沉淀池，在过滤装置的作用下，清水进入清水室，然后经过净水器的进一步处理，为喷淋装置提供部分水源，该装置不仅可以充分吸收烟气的余热，达到节能的目的；还能对烟气中的粉尘及酸性气体进行充分沉降，使排出气体无色无味，非常环保，降尘用的污水进一步处理后回收利用，节能水资源。

The invention discloses a flue gas waste heat recovery and dust removal device. The device first adopts a plurality of heat exchange tubes to absorb the waste heat of the boiler flue gas, and then the cold flue gas enters the bottom of the dust removal chamber, and the spray device in the dust removal chamber conducts the flue gas Dust is reduced, and then the dust-free gas is discharged from the exhaust port on the upper part of the dust removal chamber, and the sewage is discharged from the sewage outlet at the bottom of the dust removal chamber to the sewage sedimentation tank. , to provide part of the water source for the spraying device. This device can not only fully absorb the waste heat of the flue gas to achieve the purpose of energy saving; it can also fully settle the dust and acid gas in the flue gas, making the exhaust gas colorless and odorless, which is very environmentally friendly. The sewage used for dust suppression is further treated and recycled to save water resources.

Description

A kind of flue gas waste heat recovery and dust arrester
Technical field
The present invention relates to a kind of waste-heat recovery device, particularly a kind of flue gas waste heat recovery and dust arrester.
Background technology
In combustion gas, biomass fuel etc., being in the fire energy boiler of raw material, generally at 200-300 ℃, for collecting this part energy, there is a lot of flue gas waste heat recoveries and dust arrester in its fume afterheat, but most unreasonable structure causes recycling efficiency not high; In addition, the cigarette ash in flue gas is the one of the main reasons that causes haze.
Summary of the invention
The object of the present invention is to provide a kind of flue gas waste heat recovery and dust arrester, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of flue gas waste heat recovery and dust arrester, comprise the detention tank, dirt pocket, the heat-exchanging chamber that arrange from bottom to top, top one side of described heat-exchanging chamber is provided with delivery port, bottom opposite side is provided with water inlet, top is provided with cigarette-intake bin, described cigarette-intake bin connects dirt pocket by a plurality of heat-exchange tubes, and heat-exchange tube extend into dirt pocket bottom; In described dirt pocket, be provided with spray equipment, and spray equipment is positioned at around heat-exchange tube, the mouth spray of spray equipment is positioned at the mouth of pipe top of heat-exchange tube, the dirt pocket of described spray equipment top is provided with exhaust outlet, the outlet of sewer of described dirt pocket bottom extend into detention tank bottom, described detention tank one side is provided with cleaning door, detention tank opposite side connects clean water chamber by filter, described clean water chamber connects water purifier, and the pure water inlet of described water purifier connects spray equipment by water pump.
As the further scheme of the present invention: a heat-exchange tube diameter at center is greater than heat-exchange tube diameter around.
As the further scheme of the present invention: the lower warehouse of described cigarette-intake bin is infundibulate; The lower box of dirt pocket is also infundibulate.
As the further scheme of the present invention:
Compared with prior art, the invention has the beneficial effects as follows: first this flue gas waste heat recovery and dust arrester adopt the waste heat of a plurality of heat-exchange tube absorption boiler flue gases, then cold flue gas enters into dirt pocket bottom, spray equipment in dirt pocket carries out depositing dust to flue gas, then dustless gas is discharged from the exhaust outlet on dirt pocket top, sewage is discharged to detention tank from the outlet of sewer of dirt pocket bottom, under the effect of filter, clear water enters clean water chamber, then pass through the further processing of water purifier, for spray equipment provides part water source, this device not only can fully absorb the waste heat of flue gas, reach energy-conservation object, can also carry out abundant sedimentation to the dust in flue gas and sour gas, make Exhaust Gas colorless and odorless, very environmental protection, the sewage that depositing dust is used is recycled after further processing, energy-conservation water resource.
Accompanying drawing explanation
Fig. 1 is the structural representation of flue gas waste heat recovery and dust arrester;
In figure: 1 cleaning door, 2 detention tanks, 3 dirt pockets, 4 exhaust outlets, 5 heat-exchanging chambers, 6 heat-exchange tubes, 7 delivery ports, 8 cigarette-intake bins, 9 water inlets, 10 spray equipments, 11 water pumps, 12 water purifiers, 13 clean water chambers, 14 filters, 15 outlets of sewer.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of flue gas waste heat recovery and dust arrester, comprise the detention tank 2, dirt pocket 3, the heat-exchanging chamber 5 that arrange from bottom to top, top one side of described heat-exchanging chamber 5 is provided with delivery port 7, and bottom opposite side is provided with water inlet 9, and top is provided with cigarette-intake bin 8, described cigarette-intake bin 8 connects dirt pocket 3 by a plurality of heat-exchange tubes 6, and heat-exchange tube 6 extend into dirt pocket 3 bottoms; In described dirt pocket 3, be provided with spray equipment 10, and spray equipment 10 is positioned at around heat-exchange tube 6, the mouth spray of spray equipment 10 is positioned at the mouth of pipe top of heat-exchange tube 6, the dirt pocket 3 of described spray equipment 10 tops is provided with exhaust outlet 4, and the outlet of sewer 15 of described dirt pocket 3 bottoms extend into detention tank 2 bottoms; Described detention tank 2 one sides are provided with cleaning door 1, and detention tank 2 opposite sides connect clean water chamber 13 by filter 14, and described clean water chamber 13 connects water purifier 12, and the pure water inlet of described water purifier 12 connects spray equipment 10 by water pump 11.
As the further scheme of the present invention: heat-exchange tube 6 diameters at center are greater than heat-exchange tube 6 diameters around.
As the further scheme of the present invention: the lower warehouse of described cigarette-intake bin 8 is infundibulate; The lower box of dirt pocket 3 is also infundibulate.
Operation principle of the present invention is: first this flue gas waste heat recovery and dust arrester adopt the waste heat of a plurality of heat-exchange tube 6 absorption boiler flue gases, then cold flue gas enters into dirt pocket 3 bottoms, 10 pairs of flue gases of spray equipment in dirt pocket 3 carry out depositing dust, then dustless gas is discharged from the exhaust outlet 4 on dirt pocket 3 tops, sewage is discharged to detention tank 2 from the outlet of sewer 15 of dirt pocket 3 bottoms, under the effect of filter 14, clear water enters clean water chamber 13, then pass through the further processing of water purifier 12, for spray equipment 10 provides part water source, this device not only can fully absorb the waste heat of flue gas, reach energy-conservation object, can also carry out abundant sedimentation to the dust in flue gas and sour gas, make Exhaust Gas colorless and odorless, very environmental protection, the sewage that depositing dust is used is recycled after further processing, energy-conservation water resource.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Claims (3)

1.一种烟气余热回收及除尘装置，包括自下而上设置的污水沉淀池（1）、除尘室（3）、热交换室（5），其特征在于，所述热交换室（5）的上部一侧设有出水口（7），下部另一侧设有进水口（9），顶部设有进烟仓（8），所述进烟仓（8）通过多个热交换管（6）连接除尘室（3），且热交换管（6）伸入到除尘室（3）底部；所述除尘室（3）内设有喷淋装置（10），且喷淋装置（10）位于热交换管（6）周围，喷淋装置（10）的喷淋口位于热交换管（6）的管口上方，所述喷淋装置（10）上方的除尘室（3）上设有排气口（4），所述除尘室（3）底部的污水出口（15）伸入到污水沉淀池（2）底部；所述污水沉淀池（2）一侧设有清灰口（1），污水沉淀池（2）另一侧通过过滤装置（14）连接清水室（13），所述清水室（13）连接净水器（12），所述净水器（12）的净水出口通过水泵（11）连接喷淋装置（10）。 1. A flue gas waste heat recovery and dust removal device, including a sewage sedimentation tank (1), a dust removal room (3), and a heat exchange room (5) arranged from bottom to top, characterized in that the heat exchange room (5 ) is provided with a water outlet (7) on one side of the upper part, a water inlet (9) on the other side of the lower part, and a smoke inlet chamber (8) on the top, and the smoke inlet chamber (8) passes through a plurality of heat exchange tubes ( 6) Connect the dust removal chamber (3), and the heat exchange pipe (6) extends into the bottom of the dust removal chamber (3); the dust removal chamber (3) is equipped with a spray device (10), and the spray device (10) Located around the heat exchange tube (6), the spray port of the spray device (10) is located above the nozzle of the heat exchange tube (6), and the dust removal chamber (3) above the spray device (10) is equipped with a drain The air port (4), the sewage outlet (15) at the bottom of the dust removal chamber (3) extends into the bottom of the sewage sedimentation tank (2); one side of the sewage sedimentation tank (2) is provided with an ash removal port (1), The other side of the sewage sedimentation tank (2) is connected to the clean water chamber (13) through the filter device (14), the clean water chamber (13) is connected to the water purifier (12), and the clean water outlet of the water purifier (12) passes through The water pump (11) is connected with the spraying device (10). 2.根据权利要求1所述的烟气余热回收及除尘装置，其特征在于，中心的一个热交换管（6）直径大于周围的热交换管（6）直径。 2. The flue gas waste heat recovery and dust removal device according to claim 1, characterized in that, the diameter of the central heat exchange tube (6) is larger than the diameter of the surrounding heat exchange tubes (6). 3.根据权利要求1所述的烟气余热回收及除尘装置，其特征在于，所述进烟仓（8）的下仓体为漏斗形；除尘室（3）的下箱体也为漏斗形。 3. The flue gas waste heat recovery and dust removal device according to claim 1, characterized in that the lower body of the smoke inlet bin (8) is funnel-shaped; the lower body of the dust removal chamber (3) is also funnel-shaped .
CN201310639979.2A 2013-12-04 2013-12-04 Flue gas waste heat recovery and dust removal device Pending CN103629956A (en)

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Application Number Priority Date Filing Date Title
CN201310639979.2A CN103629956A (en) 2013-12-04 2013-12-04 Flue gas waste heat recovery and dust removal device

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923006A (en) * 2015-06-23 2015-09-23 浙江联大化工股份有限公司 Waste gas deduster
CN107781568A (en) * 2016-08-29 2018-03-09 天津海天方圆节能技术有限公司 A kind of energy-saving exhaust pipe featuring road
CN109045885A (en) * 2018-07-16 2018-12-21 广东能强陶瓷有限公司 A kind of energy conservation spray tower
CN110411243A (en) * 2019-08-09 2019-11-05 山东密友机械有限公司 Flue gas waste heat recovery detachably sprays dust-removing heat exchanger
CN114383125A (en) * 2022-01-18 2022-04-22 浙江叶华机械制造有限公司 Multi-fuel energy-saving dust-settling steam generator device
CN115654531A (en) * 2022-11-26 2023-01-31 红河天之蓝洗涤服务有限公司 Multistage dust removal and waste heat recovery system of boiler
CN116123878A (en) * 2022-09-08 2023-05-16 中材国际环境工程（北京）有限公司 Novel water-cooled bypass air release coupling SNCR system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923006A (en) * 2015-06-23 2015-09-23 浙江联大化工股份有限公司 Waste gas deduster
CN107781568A (en) * 2016-08-29 2018-03-09 天津海天方圆节能技术有限公司 A kind of energy-saving exhaust pipe featuring road
CN109045885A (en) * 2018-07-16 2018-12-21 广东能强陶瓷有限公司 A kind of energy conservation spray tower
CN110411243A (en) * 2019-08-09 2019-11-05 山东密友机械有限公司 Flue gas waste heat recovery detachably sprays dust-removing heat exchanger
CN114383125A (en) * 2022-01-18 2022-04-22 浙江叶华机械制造有限公司 Multi-fuel energy-saving dust-settling steam generator device
CN114383125B (en) * 2022-01-18 2024-03-29 浙江叶华机械制造有限公司 Multi-fuel energy-saving dust-reducing steam generator device
CN116123878A (en) * 2022-09-08 2023-05-16 中材国际环境工程（北京）有限公司 Novel water-cooled bypass air release coupling SNCR system
CN115654531A (en) * 2022-11-26 2023-01-31 红河天之蓝洗涤服务有限公司 Multistage dust removal and waste heat recovery system of boiler

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Application publication date: 20140312