CN206145651U - Flue gas waste heat recovery utilizes system - Google Patents

Flue gas waste heat recovery utilizes system Download PDF

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Publication number
CN206145651U
CN206145651U CN201620956526.1U CN201620956526U CN206145651U CN 206145651 U CN206145651 U CN 206145651U CN 201620956526 U CN201620956526 U CN 201620956526U CN 206145651 U CN206145651 U CN 206145651U
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CN
China
Prior art keywords
flue
flue gas
heat exchanger
utilizes
reclamation
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Active
Application number
CN201620956526.1U
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Chinese (zh)
Inventor
陈卫祖
叶超
陆飞
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Willy (Suzhou) Energy Technology Co.,Ltd.
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Hanfeng Science & Technology Development Co Ltd Suzhou
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Priority to CN201620956526.1U priority Critical patent/CN206145651U/en
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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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • 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
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The application discloses flue gas waste heat recovery utilizes system, including flue, draught fan, electrostatic precipitator, heat exchanger, steam engine and the generator that connects gradually, during electrostatic precipitator is taken out the high temperature flue gas from the flue to the draught fan, the process flue gas after electrostatic precipitator removes dust lets in the heat exchanger, carries out heat exchange in the heat exchanger, produces high temperature water vapor, drives the generator electricity generation through the high -temperature steam machine. The basis is novel can to convert the heat in the flue to the electric power energy, can fully retrieve flue gas waste heat, environmental protection and energy saving.

Description

Reclamation of stack gas afterheat utilizes system
Technical field
The application belongs to off-gas recovery and utilizes technical field, and more particularly to a kind of reclamation of stack gas afterheat utilizes system.
Background technology
At present Industrial Boiler is the main thermal powerplant of China, with China's rapid economic development, energy resource consumption day Benefit increases, and the problem that urban air quality goes from bad to worse is projected all the more.The high main original of high energy consumption, pollution in terms of thermal power Therefore one is exactly the fume emission of boiler, and on the one hand boiler exhaust gas problem is the direct pollution of flue gas pollutant, on the other hand It is exactly too high exhaust gas temperature.
In coking industry, the flue gas that coke oven is produced during coking contains substantial amounts of waste heat, burnt with 5.5m × 60 hole As a example by stove;Flue-gas temperature is 300 degree, and exhaust gas volumn is 170000Nm3Per hour, 12 tons of saturated vapors can be produced per hour, is utilized Flue type waste heat boiler carries out reclaiming imperative to the heating power of flue gas.
Utility model content
The purpose of this utility model is to provide a kind of reclamation of stack gas afterheat to utilize system, of the prior art to overcome It is not enough.
For achieving the above object, this utility model provides following technical scheme:
The embodiment of the present application discloses a kind of reclamation of stack gas afterheat and utilizes system, including the flue, air-introduced machine being sequentially connected, High-temperature flue gas are extracted into from flue electrostatic precipitator, heat exchanger, steam engine and electromotor, the air-introduced machine electrostatic precipitator In, the flue gas after the electrostatic precipitator dedusting is passed through heat exchanger, and heat exchange is carried out in heat exchanger, produces high-temperature water Steam, by high-temperature steam machine electrical power generators are driven.
Preferably, in above-mentioned reclamation of stack gas afterheat utilizes system, on the outside of the flue waste heat recovery is arranged with Pipeline, the waste heat recovery pipeline is connected with air-introduced machine.
Preferably, in above-mentioned reclamation of stack gas afterheat utilizes system, the port of export of the electrostatic precipitator is divided into master Exhaust gases passes and secondary exhaust gases passes two-way, the main flue gas passage is connected to heat exchanger, and the secondary exhaust gases passes are connected to waste heat The first stop valve and the second stop valve are respectively arranged with withdrawer, the main flue gas pipeline and secondary flue.
Preferably, in above-mentioned reclamation of stack gas afterheat utilizes system, the outer wall of the flue is formed with mezzanine space, The upper and lower ends of the mezzanine space are respectively arranged with hot water outlet and cold water inlet.
Preferably, in above-mentioned reclamation of stack gas afterheat utilizes system, the heat exchanger is pipe heat exchanger.
Compared with prior art, the utility model has the advantage of:This it is new by air-introduced machine by high-temperature flue gas from flue In be extracted in electrostatic precipitator, flue gas is by electrostatic precipitator, adsorbing most flue dust according to electrostatic interaction, and flue gas Constantly up flow, according to action of gravity when standing, dust impurity can fall down, so as to from cleaner unit dust-exhausting port row Go out, which prevent the blocking of dust and improve efficiency of dust collection, then the flue gas after dedusting is passed through into heat exchanger, in heat exchange Heat exchange is carried out in device, high-temperature vapor is produced, electrical power generators or civil heating are driven by high-temperature steam machine.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work, Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 show the functional-block diagram that reclamation of stack gas afterheat in this utility model specific embodiment utilizes system;
Fig. 2 show the structural representation that reclamation of stack gas afterheat in this utility model specific embodiment utilizes system.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Detailed description, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the enforcement of whole Example.Based on the embodiment in this utility model, those of ordinary skill in the art institute on the premise of creative work is not made The every other embodiment for obtaining, belongs to the scope of this utility model protection.
With reference to shown in Fig. 1, reclamation of stack gas afterheat utilizes system, including the flue, air-introduced machine, the electrostatic precipitation that are sequentially connected Device, heat exchanger, steam engine and electromotor.
In the technical scheme, high-temperature flue gas are extracted in electrostatic precipitator from flue by air-introduced machine, flue gas is by quiet In electric cleaner, most flue dust is adsorbed according to electrostatic interaction, and flue gas constantly up flows, and is existed according to action of gravity When standing, dust impurity can fall down, and so as to discharge from cleaner unit dust-exhausting port, which prevent the blocking of dust and improve Efficiency of dust collection, is then passed through heat exchanger by the flue gas after dedusting, and heat exchange is carried out in heat exchanger, produces high-temperature water and steams Gas, by high-temperature steam machine electrical power generators or civil heating are driven.
With reference to shown in Fig. 2, the outside of flue 1 is arranged with waste heat recovery pipeline 2, and the waste heat recovery pipeline 2 connects with air-introduced machine 3 It is logical.
Further, the port of export of electrostatic precipitator 4 is divided into main flue gas passage 5 and the secondary two-way of exhaust gases passes 6, and main flue gas lead to Road 5 is connected to heat exchanger, and secondary exhaust gases passes 6 are connected to waste-heat recoverer 7, set respectively on main flue gas pipeline 5 and secondary flue 6 It is equipped with the first stop valve 8 and the second stop valve 9.
In the technical scheme, when heat exchanger, steam engine or electromotor need repairing, in order to avoid energy waste, pass through Secondary exhaust gases passes carry out heat recovery.
Further, the outer wall of flue 1 is formed with mezzanine space 10, and the upper and lower ends of the mezzanine space 10 are respectively arranged with Hot water outlet 11 and cold water inlet 12.
In the technical scheme, cold water is entered after mezzanine space, is directly heated by exhaust gases passes outer wall, while playing to flue gas Certain cooling effect, the water after being heated is exported by hot water outlet, and warming lamp for civilian use is used.
Further, heat exchanger is pipe heat exchanger.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that Also there is other identical element in process, method, article or equipment including the key element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art For member, on the premise of without departing from the application principle, some improvements and modifications can also be made, these improvements and modifications also should It is considered as the protection domain of the application.

Claims (5)

1. a kind of reclamation of stack gas afterheat utilizes system, it is characterised in that remove including the flue, air-introduced machine, electrostatic being sequentially connected Dirt device, heat exchanger, steam engine and electromotor, the air-introduced machine is extracted into high-temperature flue gas in electrostatic precipitator from flue, passes through Flue gas after the electrostatic precipitator dedusting is passed through heat exchanger, and heat exchange is carried out in heat exchanger, produces high-temperature vapor, leads to Cross high temperature steam engine and drive electrical power generators.
2. reclamation of stack gas afterheat according to claim 1 utilizes system, it is characterised in that:The outside winding of the flue Have surplus heat recovery channel, and the waste heat recovery pipeline is connected with air-introduced machine.
3. reclamation of stack gas afterheat according to claim 1 utilizes system, it is characterised in that:The electrostatic precipitator goes out Mouth end is divided into main flue gas passage and secondary exhaust gases passes two-way, and the main flue gas passage is connected to heat exchanger, the secondary exhaust gases passes Waste-heat recoverer is connected to, the first stop valve and the second cut-off are respectively arranged with the main flue gas pipeline and secondary flue Valve.
4. reclamation of stack gas afterheat according to claim 1 utilizes system, it is characterised in that:The outer wall of the flue is formed There is mezzanine space, the upper and lower ends of the mezzanine space are respectively arranged with hot water outlet and cold water inlet.
5. reclamation of stack gas afterheat according to claim 1 utilizes system, it is characterised in that:The heat exchanger is changed for tubular type Hot device.
CN201620956526.1U 2016-08-26 2016-08-26 Flue gas waste heat recovery utilizes system Active CN206145651U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620956526.1U CN206145651U (en) 2016-08-26 2016-08-26 Flue gas waste heat recovery utilizes system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620956526.1U CN206145651U (en) 2016-08-26 2016-08-26 Flue gas waste heat recovery utilizes system

Publications (1)

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CN206145651U true CN206145651U (en) 2017-05-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120670A (en) * 2017-05-18 2017-09-01 安徽普瑞普勒传热技术有限公司 A kind of boiler residual neat recovering system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120670A (en) * 2017-05-18 2017-09-01 安徽普瑞普勒传热技术有限公司 A kind of boiler residual neat recovering system
CN107120670B (en) * 2017-05-18 2018-10-30 安徽普瑞普勒传热技术有限公司 A kind of boiler residual neat recovering system

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Address after: 215600 No.205, Southeast Avenue, Zhangjiagang Economic Development Zone (yangshe town), Suzhou City, Jiangsu Province

Patentee after: Willy (Suzhou) Energy Technology Co.,Ltd.

Address before: 215000 foreign student entrepreneurship Park, Zhangjiagang Economic Development Zone, Suzhou, Jiangsu

Patentee before: SUZHOU HANFENG TECHNOLOGY DEVELOPMENT Co.,Ltd.