CN203273907U - Combustion air system of large-scale household garbage incinerator - Google Patents

Combustion air system of large-scale household garbage incinerator Download PDF

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Publication number
CN203273907U
CN203273907U CN 201320210067 CN201320210067U CN203273907U CN 203273907 U CN203273907 U CN 203273907U CN 201320210067 CN201320210067 CN 201320210067 CN 201320210067 U CN201320210067 U CN 201320210067U CN 203273907 U CN203273907 U CN 203273907U
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CN
China
Prior art keywords
air
combustion
primary air
intake pipe
furnace
Prior art date
Application number
CN 201320210067
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Chinese (zh)
Inventor
严圣军
赵正萍
陈竹
李军
杜发勤
何志刚
Original Assignee
南通天蓝环保能源成套设备有限公司
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Priority to CN 201320210067 priority Critical patent/CN203273907U/en
Application granted granted Critical
Publication of CN203273907U publication Critical patent/CN203273907U/en

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Abstract

The utility model relates to a combustion air system of a large-scale household garbage incinerator, and belongs to the technical field of environmentally friendly waste heat power generation. The combustion air system comprises a primary air system, a secondary air system and an incinerator wall cooling air system, and the primary air system comprises a drying section primary air inlet pipeline, a combustion section primary air inlet pipeline and a burnout section primary air inlet pipeline. The combustion air system can overcome defects existing in the prior art, the drying section, the combustion section and the burnout section are respectively provided with an independent fan to carry out variable frequency regulation, flexible control and signal feedback without lag, therefore, the amount of primary air is supplied according to a certain percentage, air temperature and air pressure are more suitable for combustion conditions of each area, the influence on the combustion conditions of other areas by adjustment of the amount of the primary air in one single area is avoided, and the situations of insufficient combustion and excessive combustion air are avoided.

Description

A kind of combustion air system of large-scale domestic waste incineration

Technical field

The utility model belongs to environmental protection cogeneration technology field, is specifically related to a kind of combustion air system of large-scale domestic waste incineration.

Background technology

Domestic garbage burning electricity generation is to realize the most effective processing mode of rubbish " minimizing, subtract appearanceization, resource ".The important step that the waste incineration effect is guaranteed is temperature, the pressure of combustion air, the real-time control of flow, for the different variations of advancing stove rubbish character, refuse thermal value, combustion position, after controlling (ACC) calculating by automatic combustion, by regulating flow and the air quantity real-time ensuring of heating steam.Wind is admitted to incinerator by the air compartment of combustion grate below, the required air capacity of drying garbage, burning is provided and plays rubbish on loosening fire grate, makes it clean-burning effect; Secondary Air accounts for 35% of combustion air total amount, send in stove from fire grate top by the overfire air jet required portion of air of burning, stir the burning inner flue gas of the stove and make it fully to mix with oxygen, reach the purpose that the interior oxygen of reinforcement stove and imperfect combustion material fully react, reduce heat loss due to unburned gas.But simultaneously the input prolong smoke time of staying of Secondary Air, to a certain extent, play the effect of the discharging that reduces bioxin.The furnace wall cooling air absorbs heat in furnace wall, reach the effect of cooling furnace wall.

At present, prior art Small-sized living garbage incinerator combustion air system, primary air system is only established a primary air fan, the fired state of whole combustion grate is carried out adjustment, the control of air quantity, blast, wind-warm syndrome, the adjustment of every district primary air flow will certainly affect the combustion conditions in other zone, and, enter the stove combustion-supporting effect in order to guarantee a wind, two sections preheaters need be set usually just can be heated to 220 ℃ of required left and right by a wind, this makes the preheater structure become large, complicated, dumb; Secondary Air is not established preheating device, directly sprays into domestic waste incineration, for the cold district grate furnace, reduces flue-gas temperature, and ill effect is played in the minimizing of the secondary pollutions such as Dui bioxin; Furnace wall cooling air heating is sneaked on wind total pipeline, and whole combustion air system is complicated, and signal feedback lags behind.

Summary of the invention

The purpose of this utility model is to provide a kind of efficient burning, wind-warm syndrome, air quantity regulate control convenient, flexibly, do not lag behind, simple in structure, the combustion air system of a kind of large-scale domestic waste incineration of separately controllable optimization.

the technical scheme that realizes above-mentioned purpose is: a kind of combustion air system of large-scale domestic waste incineration is characterized in that: comprise primary air system, secondary air system and furnace wall cooling air system, primary air system comprises dryer section primary air intake pipe road, burning zone primary air intake pipe road and burning segment primary air intake pipe road, described dryer section primary air intake pipe road is successively by the first flow meter, the first blower fan, the first preheater, the first control valve is connected with dryer section air compartment below fire grate, described burning zone primary air intake pipe road is successively by the second flow machine, the second blower fan, the second preheater, the second control valve is connected with burning zone air compartment below fire grate, described burning segment primary air intake pipe road is successively by the 3rd blower fan, the 3rd flowmeter, the 3rd control valve is connected with burning segment air compartment below fire grate, described secondary air system comprises secondary air intake pipe road, the 4th flowmeter, four fan device, two-part preheater, the 4th control valve and is arranged on nozzle on incinerator front-back wall upper inside wall, the secondary air intake pipe road is connected with the 4th control valve by the 4th flowmeter, four fan device, two ends formula preheater successively, and the port of export of the 4th control valve is connected with nozzle on being arranged on incinerator front-back wall upper inside wall, described furnace wall cooling air system comprises furnace wall cooling air pipeline, and furnace wall cooling air pipeline is successively by furnace wall cooling air flow meter, furnace wall cooling blower, furnace wall cooling air control valve, and the inner chamber that passes incinerator is connected with dryer section primary air intake pipe road.

The utility model can overcome the shortcoming that prior art exists, dryer section, burning zone, burning segment establish respectively that a platform independent blower fan carries out variable frequency adjustment, controls flexibly, signal feedback does not lag behind, make primary air flow supply by a certain percentage, wind-warm syndrome, blast be more suitable for each regional combustion conditions, avoid the adjustment of single district primary air flow on the impact of other zonal combustion operating mode, avoided burn incompletely and the excessive situation of combustion air amount; Dryer section, burning zone are established respectively the one-part form preheater, to entering a wind preheating of incinerator, have better guaranteed efficiency of combustion, and than only, transportation, easy to assembly little at the set two-part preheater volume of main pipe rail of small incinerator.Secondary Air sprays in incinerator after the preheating of two-part preheater, is conducive to not fire in flue gas composition and further burns, and also can guarantee equal effective harmless treatment rubbish whole year even also played the disturbance of reinforcement flue gas in the cold weather situation.The furnace wall cooling air effectively absorbs the furnace wall heat, the protection furnace wall, and the furnace wall cooling air after heating and a wind mix, and have reduced the heating source energy consumption of a wind preheater of dryer section.

Description of drawings

Fig. 1 is structural representation of the present utility model.

The specific embodiment

As shown in Figure 1, the utility model comprises primary air system 1, secondary air system 2 and furnace wall cooling air system 3.

primary air system 1 comprises dryer section primary air intake pipe road 4, burning zone primary air intake pipe road 5 and burning segment primary air intake pipe road 6, described dryer section primary air intake pipe road 4 is successively by first flow meter 7, the first blower fan 8, the first preheater 9, the first control valve 10 is connected with dryer section air compartment 11 below fire grate, described burning zone primary air intake pipe road 5 is successively by the second flow machine 12, the second blower fan 13, the second preheater 14, the second control valve 15 is connected with burning zone air compartment 16 below fire grate, described burning segment primary air intake pipe road 6 is successively by the 3rd blower fan 17, the 3rd flowmeter 18, the 3rd control valve 19 is connected with burning segment air compartment 20 below fire grate.

Secondary air system 2 comprises secondary air intake pipe road 21, the 4th flowmeter 22, four fan device 23, two-part preheater 24, the 4th control valve 25 and is arranged on nozzle 25 on incinerator front-back wall upper inside wall, secondary air intake pipe road 21 is connected with the 4th control valve 25 by the 4th flowmeter 22, four fan device 23, two ends formula preheater 24 successively, and the port of export of the 4th control valve 25 is connected with nozzle 26 on being arranged on incinerator front-back wall upper inside wall.

Furnace wall cooling air system 3 comprises furnace wall cooling air pipeline 27, furnace wall cooling air pipeline 27 is successively by furnace wall cooling air flow meter 28, furnace wall cooling blower 29, furnace wall cooling air control valve 30, and the inner chamber that passes incinerator 31 is connected with dryer section primary air intake pipe road 4.

Claims (1)

1. the combustion air system of a large-scale domestic waste incineration, is characterized in that: comprise primary air system, secondary air system and furnace wall cooling air system, primary air system comprises dryer section primary air intake pipe road, burning zone primary air intake pipe road and burning segment primary air intake pipe road, described dryer section primary air intake pipe road is successively by the first flow meter, the first blower fan, the first preheater, the first control valve is connected with dryer section air compartment below fire grate, described burning zone primary air intake pipe road is successively by the second flow machine, the second blower fan, the second preheater, the second control valve is connected with burning zone air compartment below fire grate, described burning segment primary air intake pipe road is successively by the 3rd blower fan, the 3rd flowmeter, the 3rd control valve is connected with burning segment air compartment below fire grate, described secondary air system comprises secondary air intake pipe road, the 4th flowmeter, four fan device, two-part preheater, the 4th control valve and is arranged on nozzle on incinerator front-back wall upper inside wall, the secondary air intake pipe road is connected with the 4th control valve by the 4th flowmeter, four fan device, two ends formula preheater successively, and the port of export of the 4th control valve is connected with nozzle on being arranged on incinerator front-back wall upper inside wall, described furnace wall cooling air system comprises furnace wall cooling air pipeline, and furnace wall cooling air pipeline is successively by furnace wall cooling air flow meter, furnace wall cooling blower, furnace wall cooling air control valve, and the inner chamber that passes incinerator is connected with dryer section primary air intake pipe road.
CN 201320210067 2013-04-24 2013-04-24 Combustion air system of large-scale household garbage incinerator CN203273907U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320210067 CN203273907U (en) 2013-04-24 2013-04-24 Combustion air system of large-scale household garbage incinerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320210067 CN203273907U (en) 2013-04-24 2013-04-24 Combustion air system of large-scale household garbage incinerator

Publications (1)

Publication Number Publication Date
CN203273907U true CN203273907U (en) 2013-11-06

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CN 201320210067 CN203273907U (en) 2013-04-24 2013-04-24 Combustion air system of large-scale household garbage incinerator

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CN (1) CN203273907U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103994444A (en) * 2014-05-14 2014-08-20 无锡华光锅炉股份有限公司 Cooling device for furnace walls of waste incineration boiler
CN105987389A (en) * 2015-03-06 2016-10-05 深圳市能源环保有限公司 Air distributing system of garbage incinerator
CN107013927A (en) * 2017-06-01 2017-08-04 深圳市能源环保有限公司 A kind of waste incinerator furnace wall cools down wind collection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103994444A (en) * 2014-05-14 2014-08-20 无锡华光锅炉股份有限公司 Cooling device for furnace walls of waste incineration boiler
CN105987389A (en) * 2015-03-06 2016-10-05 深圳市能源环保有限公司 Air distributing system of garbage incinerator
CN105987389B (en) * 2015-03-06 2018-02-23 深圳市能源环保有限公司 A kind of waste incineration stove air allocating system
CN107013927A (en) * 2017-06-01 2017-08-04 深圳市能源环保有限公司 A kind of waste incinerator furnace wall cools down wind collection system

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