CN205048409U - Improved generation gas boiler structure - Google Patents

Improved generation gas boiler structure Download PDF

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Publication number
CN205048409U
CN205048409U CN201520775993.XU CN201520775993U CN205048409U CN 205048409 U CN205048409 U CN 205048409U CN 201520775993 U CN201520775993 U CN 201520775993U CN 205048409 U CN205048409 U CN 205048409U
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CN
China
Prior art keywords
burner
temperature
furnace
burner hearth
horizontal flue
Prior art date
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Active
Application number
CN201520775993.XU
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Chinese (zh)
Inventor
张斌
屠柏锐
尹德厚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Platinum Energy Environmental Engineering Co., Ltd.
Original Assignee
ZHEJIANG BORUI ENERGY ENVIRONMENT ENGINEERING Co Ltd
Zhejiang Huaxi Bairui Heavy Industry Co Ltd
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Application filed by ZHEJIANG BORUI ENERGY ENVIRONMENT ENGINEERING Co Ltd, Zhejiang Huaxi Bairui Heavy Industry Co Ltd filed Critical ZHEJIANG BORUI ENERGY ENVIRONMENT ENGINEERING Co Ltd
Priority to CN201520775993.XU priority Critical patent/CN205048409U/en
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Abstract

The utility model discloses an improved generation gas boiler structure, the aforesaid that aims at overcoming the blast furnace gas boiler existence among the prior art is not enough, provides one kind and can effectively reduce high -temperature economizer boiling degree, reduces boiler exhaust gas temperature, and need not increase an improved generation gas boiler structure of furnace size. It includes furnace, horizontal gas pass and vertical flue, and the furnace bottom is provided with the combustor, horizontal gas pass one end and furnace top intercommunication, and the vertical flue of horizontal gas pass other end intercommunication, horizontal gas pass has set gradually high temperature over heater, low temperature superheater and evaporimeter from the one end of connecting furnace, and vertical flue is in the horizontal gas pass below by last horizontal gas pass 0, horizontal gas pass 1 pre -heater, low -level (stack -gas) economizer and the low temperature horizontal gas pass 2 of having set gradually under certainly. The utility model has following beneficial effects: : (1 )Effectively reduce high -temperature economizer boiling degree and guarantee the economizer safe operation, (2 )Effectively reduce boiler exhaust gas temperature and combustion efficiency.

Description

A kind of modified gas boiler structure
Technical field
The utility model relates to waste heat boiler technical field, particularly relates to a kind of blast furnace gas boiler structure.
Background technology
Blast furnace gas boiler generation technology utilizes a large amount of low combustion value furnace gas in iron and steel enterprise to carry out the new technology generated electricity, the use amount of blast furnace gas can be increased and decreased by adjustment generation load in actual use and not affect the safe operation of boiler, both effectively make use of blast furnace gas resource, stabilize again the fluctuation of system pipe network as interruptible customer.Blast furnace gas boiler is the key technology of Power Generation by BF Gas technology.Find in actual motion, because blast furnace gas calorific value fluctuation or drum steam clean water shunting make the discharge reduction entering high temperature section economizer, often make high temperature section economizer boiling degree more than 20%, the excessive safe operation to economizer of the flow resistance of economizer is impacted, there is larger potential safety hazard.Blast furnace coal steam pot of the prior art adopts the measure strengthening size of burner hearth, the heat absorption of increase burner hearth for this reason, but this kind of improvement project adds boiler cost input, and makes the exit gas temperature of blast furnace gas boiler too high.
Utility model content
The utility model is to overcome blast furnace gas boiler above shortcomings of the prior art, provide one and effectively can reduce high-temperature economizer boiling degree, reduce exhaust gas temperature, and do not need a kind of modified gas boiler structure increasing size of burner hearth.
For achieving the above object, the utility model is by the following technical solutions:
A kind of modified gas boiler structure of the present utility model, comprise burner hearth, horizontal flue and vertical flue, burner hearth bottom is provided with burner, horizontal flue one end is communicated with roof of the furnace, the horizontal flue other end is communicated with vertical flue, horizontal flue is disposed with high temperature superheater, low temperature superheater and evaporimeter from connecting one end of burner hearth, vertical flue below horizontal flue by under be disposed with high-temperature economizer, high-temperature air preheater, low-level (stack-gas) economizer and low-temperature air preheater.
The high-temperature flue gas produced that burns in burner hearth passes through successively, after high temperature superheater and low temperature superheater, again in horizontal flue by counter flow evaporator, counter flow evaporator effectively can reduce the temperature of high-temperature flue gas, boiling degree in high-temperature economizer is reduced, ensures economizer safe operation.High-temperature air preheater and low-temperature air preheater can not only reduce exhaust gas temperature further, and flue gas heat can be utilized to carry out preheating to burning required air, effectively improve boiler combustion efficiency.This programme does not need to increase boiler size to the improvement of blast furnace gas boiler, reduces taking up room and cost input of boiler.
As preferably, horizontal flue top is provided with steam.
As preferably, described burner divides and is two-layerly arranged at burner hearth front wall, and the burner being positioned at lower floor uses blast furnace gas burner, and the burner being positioned at upper strata uses coke oven gas burner and bumer of light fuel.
As preferably, be provided with top girder steel above horizontal flue, high temperature superheater, low temperature superheater and evaporimeter pass through suspension rod Suspending fixation on the girder steel of top.
As preferably, water-cooling wall is provided with around burner hearth, described water-cooling wall comprises front water wall and rear water wall, rear water wall caves inward in the below that burner hearth connects horizontal flue opening formation furnace arch, furnace nose, curve inwardly bottom described forward and backward wall water-cooling wall and extend to form inclination angle, composition burner hearth bottom, high temperature superheater is arranged at the top of furnace arch, furnace nose.
Therefore, the utility model has following beneficial effect: (1) effectively reduces high-temperature economizer boiling degree and ensures economizer safe operation; (2) effectively exhaust gas temperature and efficiency of combustion is reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1 burner hearth; 2 horizontal flues; 3 vertical flues; 41 front water walls; 42 rear water walls; 5 burners; 6 high temperature superheaters; 7 low temperature superheaters; 8 counter flow evaporator; 9 high-temperature economizers; 10 high-temperature air preheaters; 11 low-level (stack-gas) economizers; 12 low-temperature air preheaters; 13 steams; 14 furnace arch, furnace noses.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, a kind of modified gas boiler structure of the present utility model, comprises burner hearth 1, horizontal flue 2 and vertical flue 3.Horizontal flue 2 one end is communicated with burner hearth 1 top, and horizontal flue 2 other end is communicated with vertical flue 3.Water-cooling wall is provided with around burner hearth 1, described water-cooling wall comprises front water wall 41 and rear water wall 42, rear water wall 42 caves inward in the below that burner hearth 1 connects horizontal flue 2 opening and forms furnace arch, furnace nose 14, curve inwardly bottom described forward and backward wall water-cooling wall 42 and extend to form inclination angle, bottom composition burner hearth 1.Horizontal flue 2 top is provided with steam 13.
Burner hearth 1 front wall divides and is two-layerly provided with burner 5, and the burner 5 being positioned at lower floor uses blast furnace gas burner 5, and the burner 5 being positioned at upper strata uses coke oven gas burner 5 and bumer of light fuel 5.
Horizontal flue 2 is disposed with high temperature superheater 6, low temperature superheater 7 and counter flow evaporator 8 from the one end connecting burner hearth 1.High temperature superheater 6 is arranged at the top of furnace arch, furnace nose 14.Above horizontal flue 2, be provided with top girder steel, each superheater and evaporimeter pass through suspension rod Suspending fixation on the girder steel of top.
Vertical flue 3 below horizontal flue 2 by under be disposed with high-temperature economizer 9, high-temperature air preheater 10, low-level (stack-gas) economizer 11 and low-temperature air preheater 12.
The high-temperature flue gas produced that burns in burner hearth 1 passes through successively, after high temperature superheater 6 and low temperature superheater 7, counter flow evaporator 8 is passed through again in horizontal flue 2, counter flow evaporator 8 effectively can reduce the temperature of high-temperature flue gas, boiling degree in high-temperature economizer 9 is reduced, ensures economizer safe operation.High-temperature air preheater 10 and low-temperature air preheater 12 can not only reduce exhaust gas temperature further, and flue gas heat can be utilized to carry out preheating to burning required air, effectively improve boiler combustion efficiency.This programme does not need to increase boiler size to the improvement of blast furnace gas boiler, reduces taking up room and cost input of boiler.

Claims (5)

1. a modified gas boiler structure, comprise burner hearth (1), horizontal flue (2) and vertical flue (3), it is characterized in that, burner hearth (1) is provided with water-cooling wall around, burner hearth (1) bottom is provided with burner (5), horizontal flue (2) one end is communicated with burner hearth (1) top, horizontal flue (2) other end is communicated with vertical flue (3), one end that horizontal flue (2) connects burner hearth (1) is certainly disposed with high temperature superheater (6), low temperature superheater (7) and counter flow evaporator (8), vertical flue (3) horizontal flue (2) below by upper under be disposed with high-temperature economizer (9), high-temperature air preheater (10), low-level (stack-gas) economizer (11) and low-temperature air preheater (12).
2. a kind of modified gas boiler structure according to claim 1, it is characterized in that, horizontal flue (2) top is provided with steam (13).
3. a kind of modified gas boiler structure according to claim 1, it is characterized in that, described burner (5) is point two-layer is arranged at burner hearth (1) front wall, the burner (5) being positioned at lower floor uses blast furnace gas burner (5), and the burner (5) being positioned at upper strata uses coke oven gas burner (5) and bumer of light fuel (5).
4. a kind of modified gas boiler structure according to claim 1, it is characterized in that, the top of horizontal flue (2) is provided with top girder steel, high temperature superheater (6), low temperature superheater (7) and counter flow evaporator (8) by suspension rod Suspending fixation on the girder steel of top.
5. a kind of modified gas boiler structure according to claim 1 or 2 or 3 or 4, it is characterized in that, water-cooling wall comprises front water wall (41) and rear water wall (42), rear water wall (42) caves inward in the below of burner hearth (1) connection horizontal flue (2) opening and forms furnace arch, furnace nose (14), described forward and backward wall water-cooling wall (42) bottom curves inwardly and extends to form inclination angle, composition burner hearth (1) bottom, high temperature superheater (6) is arranged at the top of furnace arch, furnace nose (14).
CN201520775993.XU 2015-10-08 2015-10-08 Improved generation gas boiler structure Active CN205048409U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520775993.XU CN205048409U (en) 2015-10-08 2015-10-08 Improved generation gas boiler structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520775993.XU CN205048409U (en) 2015-10-08 2015-10-08 Improved generation gas boiler structure

Publications (1)

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CN205048409U true CN205048409U (en) 2016-02-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112325270A (en) * 2020-12-16 2021-02-05 无锡华光环保能源集团股份有限公司 Gas boiler with low emission of semi-coke tail gas for combustion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112325270A (en) * 2020-12-16 2021-02-05 无锡华光环保能源集团股份有限公司 Gas boiler with low emission of semi-coke tail gas for combustion

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 310030 Xihu District, Hangzhou, ancient Pier Road, No. 7, building 710, room 712, room 656, 715

Co-patentee after: Platinum Energy Environmental Engineering Co., Ltd.

Patentee after: ZHEJIANG HUAXI BAIRUI HEAVY INDUSTRY CO., LTD.

Address before: 310030 Xihu District, Hangzhou, ancient Pier Road, No. 7, building 710, room 712, room 656, 715

Co-patentee before: Zhejiang Borui Energy Environment Engineering Co., Ltd.

Patentee before: ZHEJIANG HUAXI BAIRUI HEAVY INDUSTRY CO., LTD.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20180522

Address after: 310030 355, room 3, No. 15, Daguan Yuan Road, Gongshu District, Hangzhou, Zhejiang.

Patentee after: Platinum Energy Environmental Engineering Co., Ltd.

Address before: 310030 710, 712, 715 room 7, 656, ancient Pier Road, Xihu District, Hangzhou, Zhejiang

Co-patentee before: Platinum Energy Environmental Engineering Co., Ltd.

Patentee before: ZHEJIANG HUAXI BAIRUI HEAVY INDUSTRY CO., LTD.

TR01 Transfer of patent right