CN102563686A - Membrane-method oxygen-enriched combustion-supporting boiler system - Google Patents
Membrane-method oxygen-enriched combustion-supporting boiler system Download PDFInfo
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- CN102563686A CN102563686A CN2011104393504A CN201110439350A CN102563686A CN 102563686 A CN102563686 A CN 102563686A CN 2011104393504 A CN2011104393504 A CN 2011104393504A CN 201110439350 A CN201110439350 A CN 201110439350A CN 102563686 A CN102563686 A CN 102563686A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to a membrane-method oxygen-enriched combustion-supporting boiler system. The membrane-method oxygen-enriched combustion-supporting boiler system comprises an air filtering and flow controlling system, a water circulating system, a preheating system, an oxygen-enriched spray nozzle and an automatic control system; a fan, a membrane device, a water ring type vacuum pump, an adjusting valve and a vacuum gauge form the air filtering and flow controlling system; a gas-water separator, a dehumidifying device and a pressure stabilizing system form the water circulating system and also form an integral structure; the fan, the membrane device, the water-ring type vacuum pump, the gas-water separator, the dehumidifying device, the pressure stabilizing device, the control valve, the preheating system and the oxygen-enriched spray nozzle are sequentially connected; the adjusting valve is arranged on an air pipe between the membrane device and the water-ring type vacuum pump; the vacuum gauge is arranged on an air pipe between the adjusting valve and the water-ring type vacuum pump; a setting unit is also connected onto the control valve and is used for presetting an oxygen content value; the control valve is also connected with an oxygen content sensor in the boiler; and the oxygen content sensor is fixedly connected with the oxygen-enriched spray nozzle and can move along the movement of the oxygen-enriched spray nozzle.
Description
Technical field
The present invention relates to a kind of oxygen-enriched combustion-supporting steam generator system, particularly a kind of film oxygen enriching combustion supporting boiler system.
Background technology
In the oxygen-enriched combustion-supporting technology, Industrial Boiler is because the type of furnace is many, like chain furnace;, spreader stoker boiler, coal-powder boiler, fluidized bed furnace, gas furnace, pseudo-shove charge etc.; And application surface light, almost relate to all industrial classes, therefore according to boiler type of furnace characteristics; Adopt no technological design and combustion supporting technology; Its objective is and used local oxygen enriching to reach the flame characteristics of strengthening original Industrial Boiler, even fuel at the time of staying of burner hearth lengthening, makes fuel combustion fully, fully again; Reach energy conservation and environment protection; Oxygen-enriched combustion-supporting technology commonly used mainly comprises film oxygen enriching device, the design of oxygen enrichment nozzle and " gradient burning ", " symmetry burning ", " burning of α type " and new and high technologies such as " burnings of S type ", and utility model patent ZL20092022003.9 discloses a kind of device that is used for the local oxygen-enriched combustion-supporting of boiler; It comprises air filtration and flow control system, water circulation system, pre-heating system, oxygen enrichment nozzle and automatic control system; It is characterized in that: said blower fan, film device, water-ring vacuum pump, control valve and vacuum meter are formed air filtration and flow control system, and moisture trap, dehumidifying device, voltage-stabilizing system are formed water circulation system, the as a whole structure of said moisture trap, dehumidifying device and voltage-stabilizing system; Said blower fan, film device, water-ring vacuum pump, moisture trap, dehumidifying device, voltage-stabilizing system, pre-heating system and oxygen enrichment nozzle are connected successively; Tracheae between said film device and the water-ring vacuum pump is provided with control valve, and the tracheae between said control valve and the water-ring vacuum pump is provided with vacuum meter.
But this device causes the indoor oxygen content of boiler combustion can not be in optimum state owing to can not accurately control the oxygen quantity delivered thus always; Therefore can cause efficiency of combustion can not be in optimum state, cause fuel efficiency not to be not fully exerted, cause the wasting of resources; Simultaneously because combustion instability, can bring a series of other problems, such as over-emitting black exhaust; Produce contamination particle, environment is damaged etc.
To the problems referred to above; The present invention provides a kind of film oxygen enriching combustion supporting boiler system; It comprises air filtration and flow control system, water circulation system, pre-heating system, oxygen enrichment nozzle and automatic control system; Said blower fan, film device, water-ring vacuum pump, control valve and vacuum meter are formed air filtration and flow control system, and moisture trap, dehumidifying device, voltage-stabilizing system are formed water circulation system, the as a whole structure of moisture trap, dehumidifying device and voltage-stabilizing system; Blower fan, film device, water-ring vacuum pump, moisture trap, dehumidifying device, voltage-stabilizing system connect successively; Voltage-stabilizing system connects a control valve through tracheae, and control valve connects pre-heating system at the back, and pre-heating system connects the oxygen enrichment nozzle, and the oxygen enrichment nozzle is installed on the boiler; Control valve also connects one the unit is set, the unit is set is used to preestablish the oxygen content value, control valve also with boiler in oxygen level sensor link to each other, oxygen level sensor is fixedly connected with the oxygen enrichment nozzle, oxygen level sensor can move and move along with the oxygen enrichment nozzle; Blower fan is through the air inlet of tracheae junctional membrane device; The air outlet of film device connects water-ring vacuum pump through tracheae; Tracheae between said film device and the water-ring vacuum pump is provided with control valve; Can control the oxygen-rich stream amount through control valve, the tracheae between said control valve and the water-ring vacuum pump is provided with vacuum meter; Said water-ring vacuum pump also connects moisture trap through tracheae, and moisture trap connects dehumidifying device, and the exit of dehumidifying device connects voltage-stabilizing system.
The present invention takes above technical scheme, can accurately control the oxygen content in the combustion furnace, can regulate making oxygen content remain on volume fraction 26%～30% as required; Preferably; The optimal volume mark remains on about 28%, with about 50 ℃ of the whole raisings of furnace temperature, can save energy 10%-15% effectively; Improve boiler output more than 10%, reduce environmental pollution.
Description of drawings
Fig. 1 is the structural representation of the described a kind of film oxygen enriching combustion supporting boiler of embodiment of the invention system; ,
Fig. 2 is the mounting means sketch map of the nozzle of the described a kind of film oxygen enriching combustion supporting boiler of embodiment of the invention system.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
Among the figure:
1, ventilation blower; 2, film device; 3, water-ring vacuum pump; 4, moisture trap; 5, dehumidifying device; 6, voltage-stabilizing system; 7, pre-heating system; 8, boiler; 9, oxygen enrichment nozzle; 10, control valve; 11, vacuum meter; 12, oxygen level sensor; 13, control valve; 14, the unit is set.
As shown in Figure 1; The described a kind of film oxygen enriching combustion supporting boiler of embodiment of the invention system; Comprise ventilation blower 1, film device 2, water-ring vacuum pump 3, moisture trap 4, dehumidifying device 5, voltage-stabilizing system 6, pre-heating system 7 and oxygen enrichment nozzle 9, control valve 10, vacuum meter 11, oxygen level sensor 12, control valve 13, unit 14 is set, said blower fan 1, film device 2, water-ring vacuum pump 3, moisture trap 4, dehumidifying device 5, voltage-stabilizing system 6 link to each other successively; Voltage-stabilizing system 6 connects a control valve 13 through tracheae, and control valve 13 back connect pre-heating system 7, and pre-heating system 7 is connected with oxygen enrichment nozzle 9, and oxygen enrichment nozzle 9 is installed on the boiler 8; Unit 14 is set on the control valve 13 links to each other, control valve 13 also with boiler 8 in oxygen level sensor 12 link to each other, oxygen level sensor 12 is fixedly connected with oxygen enrichment nozzle 9, oxygen level sensor 12 can move and move along with oxygen enrichment nozzle 9; Blower fan 1 is through the air inlet of tracheae junctional membrane device 2; The air outlet of film device 2 connects water-ring vacuum pump 3 through tracheae; Tracheae between said film device 2 and the water-ring vacuum pump 3 is provided with control valve 10; Can control the oxygen-rich stream amount through control valve 10, the tracheae between said control valve 10 and the water-ring vacuum pump 3 is provided with vacuum meter 11; Said water-ring vacuum pump 3 also connects moisture trap 4 through tracheae, and moisture trap 4 connects dehumidifying device 5, and the exit of dehumidifying device 5 connects voltage-stabilizing system 6.
Said moisture trap 4, dehumidifying device 5 and voltage-stabilizing system 6 as a whole structures.
Said pre-heating system 7 is selected the heat-resistant tube material for use, and its resistance is less than 0.2KPa, and the oxygen enrichment temperature is more than 100 ℃ after the preheating.
As shown in Figure 2, said oxygen enrichment nozzle 9 is the high-temperature steel of an anti-sulphur tubing matter, organizes oxygen enrichment nozzle 9 mutual dislocation more and is installed in the boiler 8; Many group oxygen enrichment nozzles 9 make in the burner hearth of boiler 8 flue gas form " S " type to flow, the overheavy firing effect, and said oxygen enrichment nozzle 9 is adjustable nozzle structures; Move up and down through linear motor driving oxygen enrichment nozzle 9, measure temperature through the temperature sense sheet simultaneously, confirm the position through control chip then; The place that oxygen enrichment is added in need most; The oxygen content that records according to oxygen level sensor 12 simultaneously, control valve 13 makes the volume percent content of boiler 8 interior partial oxygens adjust to best ratio automatically according to the oxygen demand percent by volume change aperture that unit 14 is provided with is set; Make burning more abundant, the heat energy utilization rate is higher.
The described film oxygen enriching combustion supporting boiler of embodiment of the invention system in use, is that local oxygen enriching technology and combustion supporting technology are organically combined; Utilize the infiltration rate when each component sees through film device 2 in the air different, under pressure differential drives, the oxygen-enriched air that oxygen is preferentially obtained through film device 2; Then the oxygen enrichment preheating is added the place that needs most in the boiler 8 through oxygen enrichment nozzle 9; And according in advance through the oxygen content percent by volume that unit 14 is set is set, adjustment enters into the amount of oxygen in the boiler through control valve 13, makes that partial oxygen content volume percentages are best ratio in the boiler 8; Be generally 26%～30%; Optimal proportion is 28%, makes fuel in this burning fully fully in time, thus supplying products efficient heat as much as possible; Improve the combination property of boiler 8 and the purpose of pollution abatement fundamentally, reach the purpose of energy-conserving and environment-protective.
Its idiographic flow is: through air cleaner remove＞air of 0.5 μ dust sends into film device 2 by blower fan 1 and separates; Wherein rich nitrogen is discharged by the outlet of film device 2; And oxygen enrichment is extracted out after moisture trap 4, dehumidifying device 5, voltage-stabilizing system 6 are removed moisture content and voltage stabilizing by water-ring vacuum pump 3; Utilize the used heat of boiler 8 that oxygen enrichment is heated to the back flame kernel of delivering to burner hearth through 4 interlaced arrangement special-purpose oxygen enrichment nozzle 9 about a meter on fire grate more than 100 ℃ again; Make fuel in the overheavy firing of burner hearth center; Improve flame temperature, make radiant heat significantly increase, because radiant heat is directly proportional with the difference of the biquadratic of flame temperature and water screen tube or heat exchanger tube temperature.
Above-described embodiment, the present invention specific embodiment a kind of more preferably just, common variation that those skilled in the art are done in present technique scheme scope and replacement all should be included in protection scope of the present invention.
Claims (2)
1. film oxygen enriching combustion supporting boiler system; It comprises air filtration and flow control system, water circulation system, pre-heating system, oxygen enrichment nozzle and automatic control system; Said blower fan, film device, water-ring vacuum pump, control valve and vacuum meter are formed air filtration and flow control system; Moisture trap, dehumidifying device, voltage-stabilizing system are formed water circulation system, the as a whole structure of moisture trap, dehumidifying device and voltage-stabilizing system.Blower fan, film device, water-ring vacuum pump, moisture trap, dehumidifying device, voltage-stabilizing system connect successively; It is characterized in that voltage-stabilizing system connects a control valve through tracheae, control valve connects pre-heating system at the back, and pre-heating system connects the oxygen enrichment nozzle, and the oxygen enrichment nozzle is installed on the boiler; Control valve also connects one the unit is set, and is used to preestablish the oxygen content value, control valve also with boiler in oxygen level sensor link to each other, oxygen level sensor is fixedly connected with the oxygen enrichment nozzle, oxygen level sensor can move and move along with the oxygen enrichment nozzle.
2. filtration system as claimed in claim 1; It is characterized in that; Blower fan is through the air inlet of tracheae junctional membrane device, and the air outlet of film device connects water-ring vacuum pump through tracheae, and the tracheae between said film device and the water-ring vacuum pump is provided with control valve; Can control the oxygen enrichment flow through control valve, the tracheae between said control valve and the water-ring vacuum pump is provided with vacuum meter; Said water-ring vacuum pump also connects moisture trap through tracheae, and moisture trap connects dehumidifying device, and the exit of dehumidifying device connects voltage-stabilizing system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104393504A CN102563686A (en) | 2011-12-26 | 2011-12-26 | Membrane-method oxygen-enriched combustion-supporting boiler system |
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| CN2011104393504A CN102563686A (en) | 2011-12-26 | 2011-12-26 | Membrane-method oxygen-enriched combustion-supporting boiler system |
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| CN102563686A true CN102563686A (en) | 2012-07-11 |
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| CN2011104393504A Pending CN102563686A (en) | 2011-12-26 | 2011-12-26 | Membrane-method oxygen-enriched combustion-supporting boiler system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913938A (en) * | 2012-11-01 | 2013-02-06 | 北京卓英特科技有限公司 | Film method local oxygen-enriched combustion supporting system applied to energy conservation and emission reduction of industrial kiln |
| CN104990119A (en) * | 2015-07-14 | 2015-10-21 | 芜湖鸣人热能设备有限公司 | Multi-water-tank heating equipment |
| CN106247377A (en) * | 2016-08-30 | 2016-12-21 | 王政 | Combustion-supporting system based on film oxygen enriching |
| CN108072283A (en) * | 2017-12-13 | 2018-05-25 | 安徽博微长安电子有限公司 | A kind of furnace control and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555238U (en) * | 2009-10-23 | 2010-08-18 | 北京卓英特科技有限公司 | Device for local oxygen enrichment and combustion assistance of boiler |
| CN201680399U (en) * | 2010-04-28 | 2010-12-22 | 李炎 | Combustion-supporting device for membrane separation oxygen generation |
-
2011
- 2011-12-26 CN CN2011104393504A patent/CN102563686A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555238U (en) * | 2009-10-23 | 2010-08-18 | 北京卓英特科技有限公司 | Device for local oxygen enrichment and combustion assistance of boiler |
| CN201680399U (en) * | 2010-04-28 | 2010-12-22 | 李炎 | Combustion-supporting device for membrane separation oxygen generation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913938A (en) * | 2012-11-01 | 2013-02-06 | 北京卓英特科技有限公司 | Film method local oxygen-enriched combustion supporting system applied to energy conservation and emission reduction of industrial kiln |
| CN104990119A (en) * | 2015-07-14 | 2015-10-21 | 芜湖鸣人热能设备有限公司 | Multi-water-tank heating equipment |
| CN104990119B (en) * | 2015-07-14 | 2019-03-05 | 芜湖鸣人热能设备有限公司 | More water pot heating equipments |
| CN106247377A (en) * | 2016-08-30 | 2016-12-21 | 王政 | Combustion-supporting system based on film oxygen enriching |
| CN108072283A (en) * | 2017-12-13 | 2018-05-25 | 安徽博微长安电子有限公司 | A kind of furnace control and control method |
| CN108072283B (en) * | 2017-12-13 | 2019-05-17 | 安徽博微长安电子有限公司 | A kind of furnace control and control method |
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Application publication date: 20120711 |