CN204901734U - Novel waste heat of boiler flue gas recovery system - Google Patents

Novel waste heat of boiler flue gas recovery system Download PDF

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Publication number
CN204901734U
CN204901734U CN201520599187.1U CN201520599187U CN204901734U CN 204901734 U CN204901734 U CN 204901734U CN 201520599187 U CN201520599187 U CN 201520599187U CN 204901734 U CN204901734 U CN 204901734U
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CN
China
Prior art keywords
gas cooler
desulfurizing tower
pipeline
cold water
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520599187.1U
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Chinese (zh)
Inventor
舒少辛
蔡天忠
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Hi-Tech (jiangsu) Research & Science Co Ltd
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Hi-Tech (jiangsu) Research & Science Co Ltd
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Filing date
Publication date
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Priority to CN201520599187.1U priority Critical patent/CN204901734U/en
Application granted granted Critical
Publication of CN204901734U publication Critical patent/CN204901734U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a novel waste heat of boiler flue gas recovery system, it includes the boiler be equipped with the flue on the boiler be equipped with air heater on the flue be equipped with the fan heater below the air heater inboard the fan heater below is equipped with the forced draught blower, the air heater outside links to each other on one side of electrostatic precipitator, the electrostatic precipitator opposite side links to each other on one side of first gas cooler, first gas cooler opposite side lower part on one side of the desulfurizing tower links to each other, desulfurizing tower opposite side upper portion lower part on one side of wet chimney links to each other by freezing ware connecting tube links to each other with the second gas cooler between cold water conduit and the hot water pipeline be equipped with first connecting tube between wet chimney lower part and the desulfurizing tower lower part be equipped with first acid resisting pump on the first connecting tube. The utility model discloses the waste heat recovery that discharges fume utilizes, reduces exhaust gas temperature, practices thrift the water consumption of desulfurizing tower, improves boiler efficiency.

Description

A kind of New-type boiler flue gas waste heat recovery system
Technical field
The utility model relates to a kind of residual neat recovering system, is specifically related to a kind of flue gas waste heat recovery system.
Background technology
At present, flue gas is the main path of general energy consumption equipment waste energy, and such as boiler exhaust gas power consumption is large about 15%, and the main power consumption such as the forming machine of other equipment such as dyeing, dryer and kiln is all pass through fume emission.In the use of present Industrial Boiler, heat utilization ratio low for ubiquity, and residual heat of exhaust flue gas temperature is too high, and the problem such as flue gas internal contamination environmental gas too high levels.Current Industrial Boiler be China main thermal power equipment, along with I crosses rapid economic development, energy resource consumption increases day by day, and the problem that urban air quality goes from bad to worse is outstanding all the more.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome deficiency of the prior art, provides a kind of smoke discharging residual heat to recycle, reduces exhaust gas temperature, saves the water consumption of desulfurizing tower, improves boiler efficiency, the New-type boiler flue gas waste heat recovery system of environmental protection.
Technical scheme: in order to solve the problems of the technologies described above, a kind of New-type boiler flue gas waste heat recovery system described in the utility model, it comprises boiler, flue is provided with in described boiler wall outer upper, described flue is provided with air preheater, in described air preheater, side-lower is provided with steam air heater, pressure fan is provided with below described steam air heater, be connected with electrostatic precipitator side outside described air preheater, described electrostatic precipitator opposite side is connected with the first gas cooler side, described first gas cooler opposite side is connected with desulfurizing tower one side lower part, described desulfurizing tower opposite side top is connected with Wet chimney one side lower part, between described steam air heater and the first gas cooler, be provided with hot and cold water exchange pipeline, described hot and cold water exchanges pipeline and is divided into cold water pipes and hot water pipeline, described hot water pipeline is provided with water pump, be connected with the second gas cooler by cooler connecting tube road between described cold water pipes and hot water pipeline, described hot and cold water exchanges pipeline and junction, cooler connecting tube road is provided with pipeline valve, the first connecting pipe is provided with between described Wet chimney bottom and desulfurizing tower bottom, described first connecting pipe is provided with the first acid-proof pump, the second connecting pipe is provided with between described desulfurizing tower tower wall outer lower portion to middle and upper part, described second connecting pipe is provided with the second acid-proof pump.
Booster fan is provided with between described electrostatic precipitator and the first gas cooler.
Described hot and cold water exchanges pipeline one end and is located at described first gas cooler top.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model overall structure arranges rationally, adopt hot and cold water to exchange pipeline and connect steam air heater and the first gas cooler, recycling cooler connecting tube road exchanges pipeline with hot and cold water and is connected, thus connect steam air heater and the second gas cooler, carry out circulated heat exchange, carry out exchange heat, adopt air preheater, the burner hearth that hot-air sends into boiler is combustion-supporting, improve combustion position, adopt electrostatic precipitator, carry out flue gas ash removal, adopt the first gas cooler and the second gas cooler, reduce flue-gas temperature, Mist heat recovering, flue gas is after supercooling, temperature drops to best desulfurization temperature and passes into desulfurizing tower, not only desulfuration efficiency is high, and evaporated water greatly reduces, adopt the first acid-proof pump and the second acid-proof pump, not only effectively improve the reclamation rate of acid, and the usage safety performance of Wet chimney can be improved, native system can improve boiler efficiency, energy-conserving and environment-protective, realistic instructions for use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, a kind of New-type boiler flue gas waste heat recovery system described in the utility model, it comprises boiler 1, in described boiler 1 furnace wall, outer upper is provided with flue 2, described flue 2 is provided with air preheater 3, in described air preheater 3, side-lower is provided with steam air heater 4, pressure fan 5 is provided with below described steam air heater 4, be connected with electrostatic precipitator 6 side outside described air preheater 3, described electrostatic precipitator 6 opposite side is connected with the first gas cooler 7 side, described first gas cooler 7 opposite side is connected with desulfurizing tower 8 one side lower part, described desulfurizing tower 8 opposite side top is connected with Wet chimney 9 one side lower part, between described steam air heater 4 and the first gas cooler 7, be provided with hot and cold water exchange pipeline, described hot and cold water exchanges pipeline and is divided into cold water pipes 10 and hot water pipeline 11, described hot water pipeline 11 is provided with water pump 12, be connected with the second gas cooler 14 by cooler connecting tube road 13 between described cold water pipes 10 and hot water pipeline 11, described hot and cold water exchanges pipeline and junction, cooler connecting tube road 13 is provided with pipeline valve 15, the first connecting pipe 16 is provided with between described Wet chimney 9 bottom and desulfurizing tower 8 bottom, described first connecting pipe 16 is provided with the first acid-proof pump 17, the second connecting pipe 18 is provided with between described desulfurizing tower 8 tower wall outer lower portion to middle and upper part, described second connecting pipe 18 is provided with the second acid-proof pump 19, booster fan 20 is provided with between described electrostatic precipitator 6 and the first gas cooler 7, described hot and cold water exchanges pipeline one end and is located at described first gas cooler 7 top.The utility model overall structure arranges rationally, adopt hot and cold water to exchange pipeline and connect steam air heater and the first gas cooler, recycling cooler connecting tube road exchanges pipeline with hot and cold water and is connected, thus connect steam air heater and the second gas cooler, carry out circulated heat exchange, carry out exchange heat, adopt air preheater, the burner hearth that hot-air sends into boiler is combustion-supporting, improve combustion position, adopt electrostatic precipitator, carry out flue gas ash removal, adopt the first gas cooler and the second gas cooler, reduce flue-gas temperature, Mist heat recovering, flue gas is after supercooling, temperature drops to best desulfurization temperature and passes into desulfurizing tower, not only desulfuration efficiency is high, and evaporated water greatly reduces, adopt the first acid-proof pump and the second acid-proof pump, not only effectively improve the reclamation rate of acid, and the usage safety performance of Wet chimney can be improved, native system can improve boiler efficiency, energy-conserving and environment-protective, realistic instructions for use.
The utility model provides a kind of thinking and method; the method and access of this technical scheme of specific implementation is a lot; the above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection domain of the present utility model, and all available prior art of each part not clear and definite in the present embodiment is realized.

Claims (3)

1. a New-type boiler flue gas waste heat recovery system, it is characterized in that: it comprises boiler (1), in described boiler (1) furnace wall, outer upper is provided with flue (2), described flue (2) is provided with air preheater (3), in described air preheater (3), side-lower is provided with steam air heater (4), pressure fan (5) is provided with in described steam air heater (4) below, described air preheater (3) outside is connected with electrostatic precipitator (6) side, described electrostatic precipitator (6) opposite side is connected with the first gas cooler (7) side, described first gas cooler (7) opposite side is connected with desulfurizing tower (8) side lower part, described desulfurizing tower (8) opposite side top is connected with Wet chimney (9) side lower part, between described steam air heater (4) and the first gas cooler (7), be provided with hot and cold water exchange pipeline, described hot and cold water exchanges pipeline and is divided into cold water pipes (10) and hot water pipeline (11), described hot water pipeline (11) is provided with water pump (12), be connected with the second gas cooler (14) by cooler connecting tube road (13) between described cold water pipes (10) and hot water pipeline (11), described hot and cold water exchanges pipeline and cooler connecting tube road (13) junction is provided with pipeline valve (15), the first connecting pipe (16) is provided with between described Wet chimney (9) bottom and desulfurizing tower (8) bottom, described first connecting pipe (16) is provided with the first acid-proof pump (17), the second connecting pipe (18) is provided with between described desulfurizing tower (8) tower wall outer lower portion to middle and upper part, described second connecting pipe (18) is provided with the second acid-proof pump (19).
2. New-type boiler flue gas waste heat recovery system according to claim 1, is characterized in that: between described electrostatic precipitator (6) and the first gas cooler (7), be provided with booster fan (20).
3. New-type boiler flue gas waste heat recovery system according to claim 1, is characterized in that: described hot and cold water exchanges pipeline one end and is located at described first gas cooler (7) top.
CN201520599187.1U 2015-08-10 2015-08-10 Novel waste heat of boiler flue gas recovery system Expired - Fee Related CN204901734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520599187.1U CN204901734U (en) 2015-08-10 2015-08-10 Novel waste heat of boiler flue gas recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520599187.1U CN204901734U (en) 2015-08-10 2015-08-10 Novel waste heat of boiler flue gas recovery system

Publications (1)

Publication Number Publication Date
CN204901734U true CN204901734U (en) 2015-12-23

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106439780A (en) * 2015-08-10 2017-02-22 江苏海德节能科技有限公司 Novel boiler flue gas waste heat recovery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106439780A (en) * 2015-08-10 2017-02-22 江苏海德节能科技有限公司 Novel boiler flue gas waste heat recovery system
CN106439780B (en) * 2015-08-10 2019-05-28 江苏海德节能科技有限公司 A kind of New-type boiler flue gas waste heat recovery system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20200810

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