CN202216384U - Coal burning water boiler capable of recovering residual heat of flue gas - Google Patents

Coal burning water boiler capable of recovering residual heat of flue gas Download PDF

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Publication number
CN202216384U
CN202216384U CN201120317740XU CN201120317740U CN202216384U CN 202216384 U CN202216384 U CN 202216384U CN 201120317740X U CN201120317740X U CN 201120317740XU CN 201120317740 U CN201120317740 U CN 201120317740U CN 202216384 U CN202216384 U CN 202216384U
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CN
China
Prior art keywords
flue gas
auxilliary
coal
boiler body
main
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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
CN201120317740XU
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Chinese (zh)
Inventor
李巍
张小东
Original Assignee
李巍
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Priority to CN201120317740XU priority Critical patent/CN202216384U/en
Application granted granted Critical
Publication of CN202216384U publication Critical patent/CN202216384U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a coal burning water boiler capable of recovering residual heat of flue gas, which includes a main boiler body (2) and an auxiliary boiler body (7) positioned on one side of the main boiler body (2), wherein an upper end opening of the auxiliary boiler body (7) is connected with an upper end opening of the main boiler body (2) through a connecting flue duct (4); a flue gas outlet is formed on the outer side at the lower end part of the auxiliary boiler body (7) and connected with an induced draft fan (9) through a flue gas pipe; and the other end of the induced draft fan (9) is connected with a chimney (8) through the flue gas pipe. Flue gas emitted by the coal burning water boiler sequentially passes through the main boiler body, the connecting flue duct and the auxiliary boiler body, and enters the chimney from the flue gas outlet at the lower end of the auxiliary boiler body and under the action of the induced draft fan, and finally is emitted from an upper end opening of the chimney; secondary recycle of the residual heat in the flue gas is realized, and the temperature is lowered; and the thermal energy of coal is fully utilized, the heat efficiency of coal is improved, and the pollution caused by flue gas discharge is lessened.

Description

Can reclaim the coal-fired hot-water boiler of fume afterheat
Technical field
The utility model relates to a kind of hot-water boiler, particularly a kind of coal-fired hot-water boiler that can reclaim fume afterheat.
Background technology
The flue-gas temperature that the coal-fired hot-water boiler smoke stack emission goes out is higher, still has great amount of heat energy in the flue gas.Existing coal-fired hot-water boiler generally through chimney directly with fume emission in atmosphere, a large amount of waste heats go out of use, and not only cause the waste of coal resource, and hot gas can destroy atmospheric environment.
The utility model content
The utility model technical problem to be solved is; A kind of coal-fired hot-water boiler that can reclaim fume afterheat is provided, and through the auxiliary heat switch is set, the flue gas heat that smoke stack emission goes out to coal-fired hot-water boiler is recycled; To improve the thermal efficiency of boiler, alleviate smoke emissioning pollution.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme.
A kind of coal-fired hot-water boiler that can reclaim fume afterheat comprises that set inside has the main furnace body of heat exchange mechanism, and the lower end of main furnace body is provided with coal-fired chamber; The lower end of main furnace body is provided with water main inlet port; The upper end is provided with main delivery port, it is characterized in that: also comprise being positioned at the auxilliary body of heater that main furnace body one side and set inside have heat exchange mechanism, the lower end of auxilliary body of heater is provided with auxilliary water inlet; The upper end is provided with auxilliary delivery port, and wherein auxilliary delivery port is connected with described water main inlet port through water pipe; The outside, bottom of auxilliary body of heater offers exhanst gas outlet, and this exhanst gas outlet is connected with air-introduced machine through fume pipe, and the other end of air-introduced machine is connected with chimney through fume pipe; The port of auxilliary body of heater is connected with the port of main furnace body through connecting flue.
The outer wall of described connection flue is provided with one deck heat-insulation layer.
The good effect of the utility model is:
The first, the flue gas that gives off of coal-fired hot-water boiler successively through main furnace body, connect flue and auxilliary body of heater, get into chimney from the exhanst gas outlet of auxilliary body of heater lower end through the air-introduced machine effect, finally from the port discharging of chimney.Waste heat in the flue gas is by the secondary recovery utilization, and temperature reduces.Make full use of the heat energy of coal on the one hand, improved the thermal efficiency of coal, alleviated smoke emissioning pollution on the other hand.
The second, the outer wall of connection flue is provided with one deck heat-insulation layer, can effectively reduce heat loss.
Description of drawings
Fig. 1 is the planform sketch map of the utility model.
The specific embodiment
As shown in Figure 1, the embodiment of the utility model comprises that set inside has the main furnace body 2 of heat exchange mechanism, and the lower end of main furnace body 2 is provided with coal-fired chamber 1.The lower end of main furnace body 2 is provided with water main inlet port 11, and the upper end is provided with main delivery port 3.
Also comprise being positioned at the auxilliary body of heater 7 that main furnace body 2 one sides and set inside have heat exchange mechanism, the lower end of auxilliary body of heater 7 is provided with auxilliary water inlet 10, and the upper end is provided with auxilliary delivery port 6, and wherein auxilliary delivery port 6 is connected with described water main inlet port 11 through water pipe.The outside, bottom of auxilliary body of heater 7 offers exhanst gas outlet, and this exhanst gas outlet is connected with air-introduced machine 9 through fume pipe, and the other end of air-introduced machine 9 is connected with chimney 8 through fume pipe.
The port of auxilliary body of heater 7 is connected with the port of main furnace body 2 through connecting flue 4.In order to reduce heat loss as far as possible, the outer wall of this connection flue 4 is provided with one deck heat-insulation layer 5, and the material of this heat-insulation layer 5 is high temperature resistant heat insulation materials.
The heat exchange mechanism of the heat exchange of this instance in main furnace body 2, connect in flue 4 chambeies and carry out in the heat exchange mechanism in the auxilliary body of heater 7.Normal-temperature water gets into steam generator system from auxilliary water inlet 10; Flue gas in the heat exchange mechanism in warp and the auxilliary body of heater 7 carries out heat exchange; Flow out from auxilliary delivery port 6 after absorbing heat, enter into the heat-exchange system of main furnace body 2 then through water main inlet port 11, carry out heat exchange with flue gas in the heat exchange mechanism of main furnace body 2; After absorbing heat, discharge from main delivery port 3.
The flue gas that coal combustion in the coal-fired chamber 1 of main furnace body 2 lower ends produces is discharged from the port of main furnace body 2; Flow through and enter auxilliary body of heater 7 inner chambers downwards behind the inner chamber that connects flue 4; And get into chimneys 8 through air-introduced machine 9 effects from the exhanst gas outlet of auxilliary body of heater 7 lower ends, finally from the port discharging of chimney 8.

Claims (2)

1. coal-fired hot-water boiler that can reclaim fume afterheat; Comprise that set inside has the main furnace body (2) of heat exchange mechanism; The lower end of main furnace body (2) is provided with coal-fired chamber (1), and the lower end of main furnace body (2) is provided with water main inlet port (11), and the upper end is provided with main delivery port (3); It is characterized in that: also comprise being positioned at the auxilliary body of heater (7) that main furnace body (2) one sides and set inside have heat exchange mechanism; The lower end of auxilliary body of heater (7) is provided with auxilliary water inlet (10), and the upper end is provided with auxilliary delivery port (6), and wherein auxilliary delivery port (6) is connected with described water main inlet port (11) through water pipe; The outside, bottom of auxilliary body of heater (7) offers exhanst gas outlet, and this exhanst gas outlet is connected with air-introduced machine (9) through fume pipe, and the other end of air-introduced machine (9) is connected with chimney (8) through fume pipe; The port of auxilliary body of heater (7) is connected with the port of main furnace body (2) through connecting flue (4).
2. the coal-fired hot-water boiler that can reclaim fume afterheat according to claim 1 is characterized in that: the outer wall of described connection flue (4) is provided with one deck heat-insulation layer (5).
CN201120317740XU 2011-08-29 2011-08-29 Coal burning water boiler capable of recovering residual heat of flue gas Expired - Fee Related CN202216384U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120317740XU CN202216384U (en) 2011-08-29 2011-08-29 Coal burning water boiler capable of recovering residual heat of flue gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120317740XU CN202216384U (en) 2011-08-29 2011-08-29 Coal burning water boiler capable of recovering residual heat of flue gas

Publications (1)

Publication Number Publication Date
CN202216384U true CN202216384U (en) 2012-05-09

Family

ID=46015635

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120317740XU Expired - Fee Related CN202216384U (en) 2011-08-29 2011-08-29 Coal burning water boiler capable of recovering residual heat of flue gas

Country Status (1)

Country Link
CN (1) CN202216384U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927555A (en) * 2012-10-16 2013-02-13 东阳市佳先机械制造有限公司 Two-body boiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927555A (en) * 2012-10-16 2013-02-13 东阳市佳先机械制造有限公司 Two-body boiler

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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: 20120509

Termination date: 20140829

EXPY Termination of patent right or utility model