CN105841142A - Efficient low-heating-value gas combustion boiler - Google Patents

Efficient low-heating-value gas combustion boiler Download PDF

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Publication number
CN105841142A
CN105841142A CN201610348600.6A CN201610348600A CN105841142A CN 105841142 A CN105841142 A CN 105841142A CN 201610348600 A CN201610348600 A CN 201610348600A CN 105841142 A CN105841142 A CN 105841142A
Authority
CN
China
Prior art keywords
boiler
heating
low
value gas
air preheater
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.)
Pending
Application number
CN201610348600.6A
Other languages
Chinese (zh)
Inventor
吴行跃
秦志强
蒲小菊
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.)
Great Shock Boiler Industrial (kunshan) Co Ltd
Original Assignee
Great Shock Boiler Industrial (kunshan) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Great Shock Boiler Industrial (kunshan) Co Ltd filed Critical Great Shock Boiler Industrial (kunshan) Co Ltd
Priority to CN201610348600.6A priority Critical patent/CN105841142A/en
Publication of CN105841142A publication Critical patent/CN105841142A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/06Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/02Disposition of air supply not passing through burner
    • F23C7/06Disposition of air supply not passing through burner for heating the incoming air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00Fluegas recirculation
    • 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
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses an efficient low-heating-value gas combustion boiler. The efficient low-heating-value gas combustion boiler comprises a boiler body, a combustor and an air preheater, wherein the combustor is positioned on the left side of the boiler body; the air preheater is positioned on the right side of the boiler body; the boiler body comprises a barrel, a boiler liner positioned on the inner side of the barrel, a combustion gas connector positioned on the left lower part, a reversal chamber positioned on the right lower part, a second return smoke tube positioned on the upper part, a third return smoke tube positioned above the second return smoke tube, a front smoke box positioned on the left side and a rear smoke box positioned on the right side; and the air preheater is connected with the boiler body through a flue. The efficient low-heating-value gas combustion boiler has the beneficial effect that because low-heating-value gas stabilizes flame difficultly, the low-heating-value gas is directly discharged for a long time, huge energy waste is caused, through research and development of the project, the low-heating-value gas is directly combusted through the boiler, and therefore, running costs of enterprises are saved.

Description

A kind of low-BTU gas efficient burning boiler
Technical field
The present invention relates to boiler technology field, particularly relate to a kind of low-BTU gas efficient burning boiler.
Background technology
Low calorific value gas fuel generally refers to calorific value gaseous fuel between 2800 ~ 6280kJ/m3, industrial belonging to low calorific value gas fuel such as blast furnace gas, coal seam gasification coal gas, the various gasifier gas etc. of integral coal gasification, its calorific value just corresponds to the 1/10 ~ 1/8 of heating value of natural gas.The main component of blast furnace gas is CO and N2.Wherein CO is colourless, tasteless toxic gas.The content of every cube of blast furnace gas CO is about 0.5kg.By present GB 3095-2012 " ambient air quality ", the CO daily mean of concentration that its three grades of air quality standards specify is 6mg/m3.Every m3 blast furnace gas be enough to the CO content making 20,000 m3 air more than three grades of air quality standards, and serious environment pollution affects health.
Low-BTU gas composition with system operation conditions change thus calorific value is unstable, other be correlated with Wuli-Shili-Renli system approach also can change.Such as directly burning, heat power equipment is stablized properly functioning impact the biggest.Therefore being usually present such situation, low combustion value furnace gas can only discharge, and contained energy runs off and environmental pollution.
Summary of the invention
In view of the foregoing, the invention provides a kind of low-BTU gas efficient burning boiler.
For reaching above-mentioned purpose, the technical solution adopted for the present invention to solve the technical problems is:
A kind of low-BTU gas efficient burning boiler, including boiler body, is positioned at the burner on the left of described boiler body and is positioned at the air preheater on the right side of described boiler body;Described boiler body include cylinder, be positioned at the flue inside described cylinder, be positioned at lower left burning gases interface, be positioned at bottom-right return combustion chamber, the second backhaul smoke pipe above, be positioned at the 3rd backhaul smoke pipe above described second backhaul smoke pipe, be positioned at left side front smoke box and be positioned at right side rear smoke box;Described air preheater is connected by a flue and described boiler body.
Its further feature is as follows:
Described air preheater bag is provided with hot-flow flue and cold air duct.
Due to the utilization of technique scheme, the present invention compared with prior art has a following beneficial effect:
1. low-BTU gas is due to steady flame difficulty, the most directly discharges, causes huge energy waste, by this Project-developing, can directly be burnt by boiler, save operating cost for enterprise.
2. the content of every cube of blast furnace gas CO is about 0.5kg.By present GB 3095-2012 " ambient air quality ", the CO daily mean of concentration that its three grades of air quality standards specify is 6mg/m3.Every m3 blast furnace gas be enough to make the CO content of 20,000 m3 air, and more than three grades of air quality standards, serious environment pollution affects health.By this Project-developing, meet national standard by the exhaust emissions after boiler combustion.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention a kind of low-BTU gas efficient burning boiler.
Detailed description of the invention
Below in conjunction with specific embodiment, present disclosure is described in further detail:
Refering to Fig. 1, a kind of low-BTU gas efficient burning boiler, including boiler body, it is positioned at the burner 1 on the left of described boiler body and is positioned at the air preheater 11 on the right side of described boiler body;Described boiler body include cylinder 6, be positioned at the flue 3 inside described cylinder, be positioned at lower left burning gases interface 2, be positioned at bottom-right return combustion chamber 4, the second backhaul smoke pipe 7 above, be positioned at the 3rd backhaul smoke pipe 8 above described second backhaul smoke pipe, be positioned at left side front smoke box 5 and be positioned at right side rear smoke box 9;Described air preheater is connected by a flue 10 and described boiler body.Described air preheater bag is provided with hot-flow flue 12 and cold air duct 13.
1., for the feature design large-scale combustion room that low calorific value gas fuel exhaust gas volumn is big, combustor, than conventional increase 20%, the boiler structure of high circulation area, adjusts afterbody waste-heat recovery device way of recycling, keeps boiler to have higher efficiency;
2. according to the change of the composition of low calorific value gas fuel, add a certain amount of H2, one or more of CO, CH4, make the burning can be with even running;Meanwhile, flame combustion chamber central temperature to be controlled, within 1500 DEG C, reduces the generation of NOx, to reach the optimum of combustion system;
3. increase boiler tail UTILIZATION OF VESIDUAL HEAT IN, the temperature to more than 200 DEG C of combustion air is greatly improved, it is beneficial to the burning of low calorific value gas fuel and reduces heat loss due to exhaust gas, it is remarkably improved the operational efficiency of heating equipment, makes boiler efficiency grade meet and exceed two grades of Energy Efficiency Standards that TSG G0002-2010 " boiler energy-saving technical supervision rule of management " specifies.
Above-described embodiment is only for technology design and the feature of the explanation present invention; its object is to allow person skilled in the art will appreciate that present disclosure and to be carried out; can not limit the scope of the invention with this; all equivalence changes made according to spirit of the invention or modification, all should contain within the scope of the present invention.

Claims (2)

1. a low-BTU gas efficient burning boiler, it is characterised in that include boiler body, be positioned at the burner on the left of described boiler body and be positioned at the air preheater on the right side of described boiler body;
Described boiler body include cylinder, be positioned at the flue inside described cylinder, be positioned at lower left burning gases interface, be positioned at bottom-right return combustion chamber, the second backhaul smoke pipe above, be positioned at the 3rd backhaul smoke pipe above described second backhaul smoke pipe, be positioned at left side front smoke box and be positioned at right side rear smoke box;
Described air preheater is connected by a flue and described boiler body.
A kind of low-BTU gas efficient burning boiler the most according to claim 1, it is characterised in that: described air preheater bag is provided with hot-flow flue and cold air duct.
CN201610348600.6A 2016-05-24 2016-05-24 Efficient low-heating-value gas combustion boiler Pending CN105841142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610348600.6A CN105841142A (en) 2016-05-24 2016-05-24 Efficient low-heating-value gas combustion boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610348600.6A CN105841142A (en) 2016-05-24 2016-05-24 Efficient low-heating-value gas combustion boiler

Publications (1)

Publication Number Publication Date
CN105841142A true CN105841142A (en) 2016-08-10

Family

ID=56593268

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610348600.6A Pending CN105841142A (en) 2016-05-24 2016-05-24 Efficient low-heating-value gas combustion boiler

Country Status (1)

Country Link
CN (1) CN105841142A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917428A (en) * 2017-11-28 2018-04-17 湖南长宏南雁锅炉修理安装有限公司 The refuse pyrolysis steam pot furnace system of high-efficiency environment friendly

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86201487U (en) * 1986-02-26 1987-07-08 湘潭市锅炉厂 Horizontal quick-charged boiler with variant coals
US4813380A (en) * 1985-11-19 1989-03-21 A. Ahlstrom Corporation Method and apparatus for controlling the operation of a fluidized bed reactor apparatus
CN2192002Y (en) * 1994-08-18 1995-03-15 北京金宝集团公司 Non-pressure gas horizontal hot water boiler
CN1380524A (en) * 2002-04-30 2002-11-20 西安交通大学 Plateau type high-efficiency environment-protecting integrated condensation gas boiler and its design method
CN1670431A (en) * 2005-04-15 2005-09-21 佘顺元 Three return stroke half fire coal, fuel oil and gas-fired smokeless boiler
CN102635848A (en) * 2012-05-03 2012-08-15 山东耐火材料集团有限公司 Hot and dirty coal gas boiler
CN204534518U (en) * 2015-01-06 2015-08-05 广州迪森热能设备有限公司 Three backhaul combustion gas condensation steam boilers
CN104848211A (en) * 2015-06-09 2015-08-19 洪百聪 Gas boiler
CN205782864U (en) * 2016-05-24 2016-12-07 大震锅炉工业(昆山)有限公司 A kind of low-BTU gas efficient burning boiler

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813380A (en) * 1985-11-19 1989-03-21 A. Ahlstrom Corporation Method and apparatus for controlling the operation of a fluidized bed reactor apparatus
CN86201487U (en) * 1986-02-26 1987-07-08 湘潭市锅炉厂 Horizontal quick-charged boiler with variant coals
CN2192002Y (en) * 1994-08-18 1995-03-15 北京金宝集团公司 Non-pressure gas horizontal hot water boiler
CN1380524A (en) * 2002-04-30 2002-11-20 西安交通大学 Plateau type high-efficiency environment-protecting integrated condensation gas boiler and its design method
CN1670431A (en) * 2005-04-15 2005-09-21 佘顺元 Three return stroke half fire coal, fuel oil and gas-fired smokeless boiler
CN102635848A (en) * 2012-05-03 2012-08-15 山东耐火材料集团有限公司 Hot and dirty coal gas boiler
CN204534518U (en) * 2015-01-06 2015-08-05 广州迪森热能设备有限公司 Three backhaul combustion gas condensation steam boilers
CN104848211A (en) * 2015-06-09 2015-08-19 洪百聪 Gas boiler
CN205782864U (en) * 2016-05-24 2016-12-07 大震锅炉工业(昆山)有限公司 A kind of low-BTU gas efficient burning boiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917428A (en) * 2017-11-28 2018-04-17 湖南长宏南雁锅炉修理安装有限公司 The refuse pyrolysis steam pot furnace system of high-efficiency environment friendly

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Application publication date: 20160810

RJ01 Rejection of invention patent application after publication