CN202927870U - Novel biomass boiler whirlwind secondary air air-supply device - Google Patents

Novel biomass boiler whirlwind secondary air air-supply device Download PDF

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Publication number
CN202927870U
CN202927870U CN 201220471968 CN201220471968U CN202927870U CN 202927870 U CN202927870 U CN 202927870U CN 201220471968 CN201220471968 CN 201220471968 CN 201220471968 U CN201220471968 U CN 201220471968U CN 202927870 U CN202927870 U CN 202927870U
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CN
China
Prior art keywords
air
supply
pipes
novel biomass
whirlwind
Prior art date
Application number
CN 201220471968
Other languages
Chinese (zh)
Inventor
郭双革
姚勇
张德利
李瑞杨
Original Assignee
江苏圆通农机科技有限公司
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Priority to CN 201220471968 priority Critical patent/CN202927870U/en
Application granted granted Critical
Publication of CN202927870U publication Critical patent/CN202927870U/en

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Abstract

The utility model provides a novel biomass whirlwind secondary air air-supply device. The novel biomass whirlwind secondary air air-supply device comprises main air inlet pipes (1), secondary air distributing pipes (2), secondary air delivering pipes (3), a water jacket inner wall (4), an air inlet (5) and an air outlet (6). Seven secondary air distributing pipes are welded on the circumference of the inner wall of a hearth. Ten air outlets are distributed on each air pipe evenly. The novel biomass whirlwind secondary air air-supply device is characterized in that an 15 degrees inclined angle is located between the ligature center of the hearth and the of air pipes and the air outlet (6) in a axial direction. The novel biomass whirlwind secondary air air-supply device has the advantages that the hot air can form a whirlpool airflow flow filed in the hearth so as to draw combustion flame to center, improve flame temperature and have important effect on sufficient burning of volatiles. The secondary air delivering pipes are installed below a fire grate so as to increase supply air temperature of the secondary and do good for burning.

Description

Novel biomass boiler cyclone type Secondary Air air supply device
Technical field
The utility model relates to a kind of biomass hot water boiler secondary air device, particularly about whirlwind flame-gathering type secondary air device, belongs to the boiler technology field.
Background technology
The boiler that utilizes at present the biomass moulding briquetting to make fuel is not yet popularized in market, and the combustion technology of existing boiler is more backward, be that combustion air just enters from the fire grate of burner hearth bottom surface, fuel on fire grate, ash cover on grate surface, furnace grate ventilation is bad, and fuel combustion is supplied hypoxgia.Biomass fuel belongs to high volatile fuel, so the necessary a certain amount of Secondary Air auxiliary combustion of proportioning in combustion process, so just can make sufficient combustion.Therefore, the Secondary Air structure of design biomass boiler is developed new secondary air devices significant.
Existing biomass boiler secondary air feed system is to be directly that induced duct arrives upper furnace mostly, though operation can help flue gas further to burn like this, it is inhomogeneous that but Secondary Air distributes, combustion efficiency is not ideal enough, on the other hand, Secondary Air makes flame amesiality, and long-term so hearth abrasion is serious.China Patent No. is that patent (boiler secondary air distribution system) specification of ZL92242724.0 discloses a kind of second air flow distributor for boiler.This device evenly sprays to flame with Secondary Air.But this apparatus structure is more complicated, and is higher to part heat-resisting quantity and requirement on machining accuracy, and most importantly Secondary Air directly blows to flame kernel and makes flame instability.
Summary of the invention
For above deficiency, the purpose of this utility model is to provide a kind of novel biomass boiler cyclone type Secondary Air air supply device, is by Secondary Air air supply device shape and structure being carried out Renewal Design, boiler smoke is fully contacted with Secondary Air, burning fully; By changing secondary wind direction, make flame form the poly-flame mode of eddy flow, flame temperature further improves.The burning of present biomass boiler is insufficient to overcome, over-emitting black exhaust, shortcoming that fire box temperature is low.
The utility model has adopted following technical scheme: novel biomass boiler cyclone type Secondary Air air supply device, comprise main blast pipe, secondary air separating distribution pipes, Secondary Air carrier pipe, water jacket inwall, fresh air inlet and exhaust vent, 7 secondary air channels are welded on the inboard wall of burner hearth surrounding; Be evenly arranged an exhaust vent on every airduct, it is characterized in that: described burner hearth center and airduct line and exhaust vent axial direction are provided with the 15o angle.
The utility model has the advantages that: the one, owing to having carried out the shunting air feed in inside than conventional boiler secondary air devices, flue gas is mixed more even with Secondary Air; The 2nd, burner hearth center and airduct line and exhaust vent axial direction with certain angle arranged, therefore produce spiral-flow type flame, make flame more concentrated, improve fire box temperature.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1 main blast pipe, 2 secondary air separating distribution pipes, 3 Secondary Air carrier pipes, 4 water jacket inwalls, 5 fresh air inlets, 6 exhaust vents.
The specific embodiment
As shown in Figure 1, a kind of novel biomass hot-water boiler secondary air device of the present utility model comprises main blast pipe 1, secondary air separating distribution pipes 2, Secondary Air carrier pipe 3, water jacket inwall 4, fresh air inlet 5 and exhaust vent 6.A main blast pipe 1, two Secondary Air carrier pipes 3 and two secondary air separating distribution pipes 2 all are welded on the inboard wall of burner hearth surrounding; Be evenly arranged 10 exhaust vents on airduct, burner hearth center and airduct line and exhaust vent axial direction are provided with the 15o angle.
When air-intake device normally moved, fresh air inlet 5 was connected on air blast, and Secondary Air on secondary air separating distribution pipes 2, makes Secondary Air from burner hearth surrounding blow out by distributing pipe by pipeline transportation, and flue gas is fully burnt.Because the exhaust vent angle position makes freeze profile become spiral-flow type flame, flame temperature raises, and further strengthens burning.

Claims (1)

1. novel biomass boiler cyclone type Secondary Air air supply device, comprise main blast pipe (1), secondary air separating distribution pipes (2), Secondary Air carrier pipe (3), water jacket inwall (4), fresh air inlet (5) and exhaust vent (6), 7 secondary air channels are welded on the inboard wall of burner hearth surrounding; Be evenly arranged 10 exhaust vents on every airduct, it is characterized in that: described burner hearth center and airduct line and exhaust vent (6) axial direction are provided with the 15o angle.
CN 201220471968 2012-09-17 2012-09-17 Novel biomass boiler whirlwind secondary air air-supply device CN202927870U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220471968 CN202927870U (en) 2012-09-17 2012-09-17 Novel biomass boiler whirlwind secondary air air-supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220471968 CN202927870U (en) 2012-09-17 2012-09-17 Novel biomass boiler whirlwind secondary air air-supply device

Publications (1)

Publication Number Publication Date
CN202927870U true CN202927870U (en) 2013-05-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220471968 CN202927870U (en) 2012-09-17 2012-09-17 Novel biomass boiler whirlwind secondary air air-supply device

Country Status (1)

Country Link
CN (1) CN202927870U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901116A (en) * 2012-09-17 2013-01-30 江苏圆通农机科技有限公司 Secondary air supply device for novel biomass boiler
CN106885235A (en) * 2017-01-24 2017-06-23 山东理工大学 Biomass combustion furnace
CN110017463A (en) * 2019-04-16 2019-07-16 武汉市新荣锅炉制造有限公司 A kind of closed isobaric air compartment water pipe steam boiler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901116A (en) * 2012-09-17 2013-01-30 江苏圆通农机科技有限公司 Secondary air supply device for novel biomass boiler
CN106885235A (en) * 2017-01-24 2017-06-23 山东理工大学 Biomass combustion furnace
CN106885235B (en) * 2017-01-24 2019-04-16 山东理工大学 Biomass combustion furnace
CN110017463A (en) * 2019-04-16 2019-07-16 武汉市新荣锅炉制造有限公司 A kind of closed isobaric air compartment water pipe steam boiler
CN110017463B (en) * 2019-04-16 2020-09-01 武汉市新荣锅炉制造有限公司 Water pipe steam boiler with closed isobaric air chamber

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130508

Termination date: 20130917