CN201852475U - Flue gas waste heat recycling device - Google Patents

Flue gas waste heat recycling device Download PDF

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Publication number
CN201852475U
CN201852475U CN2010205850245U CN201020585024U CN201852475U CN 201852475 U CN201852475 U CN 201852475U CN 2010205850245 U CN2010205850245 U CN 2010205850245U CN 201020585024 U CN201020585024 U CN 201020585024U CN 201852475 U CN201852475 U CN 201852475U
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CN
China
Prior art keywords
flue gas
heat
pipeline
pipe
recycling device
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Expired - Fee Related
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CN2010205850245U
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Chinese (zh)
Inventor
谢平伟
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Individual
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Individual
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Priority to CN2010205850245U priority Critical patent/CN201852475U/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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model relates to a flue gas waste heat recycling device, which comprises two draught fans, and a heat pipe exchanger, wherein the heat pipe exchanger is respectively connected with the two draught fans through a first pipeline; a coal saver is arranged on the first pipeline; the two draught fans are connected with a chimney through a second pipeline; a first brake valve is arranged on the second pipeline; the chimney is connected with a high temperature flue gas pipe through a main flue gas exhaustion pipeline; a third brake valve is arranged on the main flue gas exhaustion pipeline; the high temperature flue gas pipe is connected with the heat pipe exchanger through the third pipeline; and a second brake valve is arranged on the third pipeline. The flue gas waste heat recycling device has the beneficial effects of high heat energy recycling rate and high heat exchange efficiency of the heat pipe; and the heat exchange efficiency of the flue gas waste heat recycling device is more than 90 percent, so that unnecessary heat exchange losses are reduced. Moreover, the flue gas waste heat recycling device runs simply, and has long service life.

Description

The flue gas residual heat recycling equipment
Technical field
The utility model relates to a kind of flue gas residual heat recycling equipment.
Background technology
Flue gas is the main path of general energy consumption equipment waste energy, consume energy greatly about 15% such as the coking furnace smoke evacuation, and other equipment all is to pass through fume emission such as the main power consumption of forming machine, dryer and the kiln etc. of dyeing.Flue gas waste heat recovery mainly is to convert utilizable heat to by the heat that certain heat exchange mode carries flue gas.The mode of flue gas waste heat recovery mainly contains following several:
1, air-water way of recycling: during work, the flue gas heat exchange of heat pipe pipe flushing heat pipe lower end of flowing through is directed at the upper end with heat after the heat pipe heat absorption, and water is heated in heat pipe upper end heat release.In order to prevent stifled ash and corrosion, the heat exchange of heat pipe exit gas temperature generally is controlled at more than the dew point, i.e. fuel oil, coal-burning boiler exhaust gas temperature<130 ℃, gas fired-boiler exhaust gas temperature<100 ℃, fuel savings 4-18%.
2, gas-gas way of recycling: during work, high-temperature flue gas upwards flows from the heat exchange of heat pipe pipeline and washes away heat pipe, heat pipe heat absorption this moment, and the flue gas exothermic temperature descends.Heat pipe causes right-hand member with the heat that absorbs, and cold air is from the downward regressive erosion heat pipe of heat exchange of heat pipe passage, heat pipe heat release this moment, and the air endothermic temperature raises.The waste-heat recoverer exit gas temperature is not less than dew point.
The waste heat recovery mode that the utility model adopts is gas-gas way of recycling.Present heat recovery rate is not high, and the heat exchange efficiency of heat exchange of heat pipe will inevitably influence waste heat recovery.And equipment is simple, can reduce flowing through route and time of flue gas, avoids the heat of flow of flue gas to scatter and disappear.
The utility model content
The purpose of this utility model provides a kind of flue gas residual heat recycling equipment, improves the heat energy recycle rate, has reduced unnecessary exchange heat loss.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of flue gas residual heat recycling equipment, comprise two air-introduced machines and heat exchange of heat pipe, described heat exchange of heat pipe is connected with two air-introduced machines respectively by first pipeline, first pipeline is provided with economizer, two air-introduced machines are connected with chimney by second pipeline, second pipeline is provided with first gate valve, chimney is connected with the high-temperature flue gas pipe by main smoke discharging pipe, main smoke discharging pipe is provided with the 3rd gate valve, the high-temperature flue gas pipe is connected with heat exchange of heat pipe by the 3rd pipeline, and the 3rd pipeline is provided with second gate valve.
The beneficial effects of the utility model are: heat energy recycle rate height, and heat pipe heat exchanging efficient height, heat exchange efficiency reaches more than 90%, has reduced unnecessary exchange heat loss; The equipment operation is simple, long service life, and cost free loss occurrence in the running only has depreciation of equipment, one-time investment, profit is big.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the described flue gas residual heat recycling equipment of a utility model embodiment schematic diagram;
Fig. 2 is the structural representation after the described flue gas residual heat recycling equipment of the utility model embodiment assembles.
Among the figure:
1, air-introduced machine; 2, heat exchange of heat pipe; 3, second pipeline; 4, chimney; 5, first pipeline; 6, first gate valve; 7, main smoke discharging pipe; 8, high-temperature flue gas pipe; 9, the 3rd gate valve; 10, the 3rd pipeline; 11, second gate valve; 12, economizer.
The specific embodiment
Shown in Fig. 1-2, the described a kind of flue gas residual heat recycling equipment of the utility model embodiment, comprise two air-introduced machines 1 and heat exchange of heat pipe 2, described heat exchange of heat pipe 2 is connected with two air-introduced machines 1 respectively by first pipeline 5, first pipeline 5 is provided with economizer 12, two air-introduced machines 1 are connected with chimney 4 by second pipeline 3, second pipeline 3 is provided with first gate valve 6, chimney 4 is connected with high-temperature flue gas pipe 8 by main smoke discharging pipe 7, main smoke discharging pipe 7 is provided with the 3rd gate valve 9, high-temperature flue gas pipe 8 is connected with heat exchange of heat pipe 2 by the 3rd pipeline 10, and the 3rd pipeline 10 is provided with second gate valve 11.
Concrete installation method of the present utility model is: do iron chimney 4 near high-temperature flue gas pipe 8, rapidly the 3rd gate valve 9 is opened, prefabricated iron main smoke discharging pipe 7 is put in, with asbestos cloth or cement the slit is blocked up fast, second gate valve 11 of iron the 3rd pipeline 10 is closed, and flue gas enters chimney by present mode by former the 3rd pipeline 10.Employing is closed first gate valve 6 of iron second pipeline 3 with quadrat method, in order to avoid influence flue gas pressures, installs heat exchange of heat pipe 2 afterwards, air-introduced machine 1, and economizer 12 connects first pipeline 5, the then installation.
The waste heat recovery operation principle: high-temperature flue gas divides two-way, main smoke discharging pipe 7 to the chimney 4 of leading up to is directly arranged atmosphere, another road is by the heat absorbing end of heat exchange of heat pipe 2, heat is passed to the fin of heat pipe heat absorbing end, by heat pipe, pass in the heat exchange casing of the other end then, the fluid in the heat exchange casing (water or air) heat absorption back produces high-temperature-hot-water, steam or hot blast, the low-temperature flue gas after the heat exchange drains into chimney 4 by air-introduced machine 1 and discharges.
The waste heat that utilization is reclaimed from industrial equipment is as the Urban District Heating of thermal source.Most energy consumption equipments as prime mover, heating furnace etc., have all only utilized the sub-fraction in the heat energy.Reclaim a part of industrial exhaust heat of passing into disuse originally and carry out central heating, can save primary energy, increase economic efficiency, reduce and pollute.The beneficial effects of the utility model are: heat energy recycle rate height, and heat pipe heat exchanging efficient height, heat exchange efficiency reaches more than 90%, has reduced unnecessary exchange heat loss; The equipment operation is simple, long service life, and cost free loss occurrence in the running only has depreciation of equipment, one-time investment, profit is big.

Claims (1)

1. flue gas residual heat recycling equipment, comprise two air-introduced machines (1) and heat exchange of heat pipe (2), described heat exchange of heat pipe (2) is connected with two air-introduced machines (1) respectively by first pipeline (5), first pipeline (5) is provided with economizer (12), it is characterized in that: two air-introduced machines (1) are connected with chimney (4) by second pipeline (3), second pipeline (3) is provided with first gate valve (6), chimney (4) is connected with high-temperature flue gas pipe (8) by main smoke discharging pipe (7), main smoke discharging pipe (7) is provided with the 3rd gate valve (9), high-temperature flue gas pipe (8) is connected with heat exchange of heat pipe (2) by the 3rd pipeline (10), and the 3rd pipeline (10) is provided with second gate valve (11).
CN2010205850245U 2010-10-29 2010-10-29 Flue gas waste heat recycling device Expired - Fee Related CN201852475U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205850245U CN201852475U (en) 2010-10-29 2010-10-29 Flue gas waste heat recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205850245U CN201852475U (en) 2010-10-29 2010-10-29 Flue gas waste heat recycling device

Publications (1)

Publication Number Publication Date
CN201852475U true CN201852475U (en) 2011-06-01

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CN2010205850245U Expired - Fee Related CN201852475U (en) 2010-10-29 2010-10-29 Flue gas waste heat recycling device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305394A (en) * 2011-09-01 2012-01-04 天津华能北方热力设备有限公司 Coking furnace flue-gas waste-heat boiler
CN102338366A (en) * 2011-07-25 2012-02-01 保定市润利节能环保有限公司 Method for recovering flue gas waste heat of coke oven
CN102851488A (en) * 2012-04-26 2013-01-02 宜兴市化工成套设备有限公司 High temperature flue gas anti-glass arsenic waste heat recovery system of roasting dearsenification and method thereof
CN103134043A (en) * 2013-01-29 2013-06-05 北京源深节能技术有限责任公司 Boiler system with U-shaped flue and boiler water charging system
CN104101221A (en) * 2014-06-19 2014-10-15 中钢集团鞍山热能研究院有限公司 Heating system and heating method for recycling flue gas waste heat to maximum and reducing combustion loss

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338366A (en) * 2011-07-25 2012-02-01 保定市润利节能环保有限公司 Method for recovering flue gas waste heat of coke oven
CN102305394A (en) * 2011-09-01 2012-01-04 天津华能北方热力设备有限公司 Coking furnace flue-gas waste-heat boiler
CN102851488A (en) * 2012-04-26 2013-01-02 宜兴市化工成套设备有限公司 High temperature flue gas anti-glass arsenic waste heat recovery system of roasting dearsenification and method thereof
CN102851488B (en) * 2012-04-26 2013-10-23 宜兴市化工成套设备有限公司 High temperature flue gas anti-glass arsenic waste heat recovery system of roasting dearsenification and method thereof
CN103134043A (en) * 2013-01-29 2013-06-05 北京源深节能技术有限责任公司 Boiler system with U-shaped flue and boiler water charging system
CN103134043B (en) * 2013-01-29 2015-04-08 北京源深节能技术有限责任公司 Boiler system with U-shaped flue and boiler water charging system
CN104101221A (en) * 2014-06-19 2014-10-15 中钢集团鞍山热能研究院有限公司 Heating system and heating method for recycling flue gas waste heat to maximum and reducing combustion loss

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Wuhai Hao Hua hi tech energy saving Technology Co., Ltd.

Assignor: Xie Pingwei

Contract record no.: 2011110000204

Denomination of utility model: Flue gas waste heat recycling device

Granted publication date: 20110601

License type: Exclusive License

Record date: 20111228

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110601

Termination date: 20151029

EXPY Termination of patent right or utility model