CN104534490A - Device for boiler acid-base balance auxiliary air distribution and air distribution method - Google Patents
Device for boiler acid-base balance auxiliary air distribution and air distribution method Download PDFInfo
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- CN104534490A CN104534490A CN201410839498.0A CN201410839498A CN104534490A CN 104534490 A CN104534490 A CN 104534490A CN 201410839498 A CN201410839498 A CN 201410839498A CN 104534490 A CN104534490 A CN 104534490A
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Abstract
The invention relates to a device for boiler acid-base balance auxiliary air distribution and an air distribution method. At present, the tail desulfurization and denitrification mode is adopted in most of boilers to remove pollutants in China, the effect is not ideal, pollutant emission often exceeds the standard, and the overhaul difficulty is large. The device comprises a box (5), a water injection pipe (3) is installed on the box, one end of the water injection pipe is provided with an electric gate valve (1), the other end of the water injection pipe (3) is installed in a preparation pond (8) arranged in the box, a water level sensor (2) and a conveying pipeline (10) are installed in the preparation pond, a circulating pump (9) is installed on the conveying pipeline, an ultrasonic atomization generator (11) is arranged below the conveying pipeline and installed on a front air delivery conduit (12), and a fan (13) is installed between the front air delivery conduit and a rear air delivery conduit (14). The device and the method are used for boiler acid-base balance auxiliary air distribution.
Description
technical field:
the present invention relates to device and air distribution method that a kind of boiler ph balancing assists air distribution.
background technology:
at present, domestic most of boilers take the mode of afterbody desulphurization denitration to remove pollutant, often effect is not satisfactory, pollutant emission exceeds standard and happens occasionally, and maintenance difficulty is larger, along with desulphurization denitration ageing equipment, its operational effect go fromes bad to worse especially, can produce the pollution of very severe like this to ambient air.
domestic current air distribution device majority is single air blast or combustion fan, these air distribution devices only can be independent the size of adjustment air quantity, do not have the ability of the combustion-supporting adjustment acid-base balance of atomization air distribution, so not only can cause the significant wastage of coal resources, and imperfect combustion coal and nitrogen sulfur compound can produce again the pollution of very severe to ambient air.
summary of the invention:
the object of this invention is to provide device and air distribution method that a kind of boiler ph balancing assists air distribution.
above-mentioned object is realized by following technical scheme:
a kind of boiler ph balancing assists the device of air distribution, its composition comprises: casing, described casing is provided with water injection pipe, described water injection pipe one end is provided with electric gate valve, the described water injection pipe other end is arranged on described box house and has inside, preparation pond, described preparation pond is built with level sensor, transfer pipeline, described transfer pipeline is provided with circulating pump, the below of described transfer pipeline has ultrasonic mist generating device, described ultrasonic mist generating device is arranged on front air delivery duct, between described front air delivery duct and rear air delivery duct, blower fan is installed.
described boiler ph balancing assists the device of air distribution, and described ultrasonic mist generating device comprises PVC and to insulate frame, and the described PVC frame that insulate is connected with described casing, evenly distributedly in described PVC insulation frame is provided with thermocouple.
described boiler ph balancing assists the device of air distribution, and the bottom in described preparation pond is provided with blow-off pipe, and described blow-off pipe is provided with blowoff valve.
described boiler ph balancing assists the device of air distribution, is provided with control cabinet, inspection door outside described casing, and described casing is arranged on base, and described casing has air inlet.
boiler ph balancing described in claim 1-4 assists an air distribution method for the device of air distribution, and the method comprises the steps:
electric gate valve is opened, sulphur denitration preparation and combustion-supporting preparation enter the preparation pond in casing by ascending pipe, circulating pump by preparation in described preparation pond by transfer pipeline on ultrasonic mist generating device, preparation is heated into atomizing steam by the thermocouple in described ultrasonic mist generating device, blower fan by the preparation after ultrasonic mist generating device atomization and Secondary Air through front air delivery duct and after air delivery duct send into boiler furnace and participate in desulphurization denitration and auxiliary combustion;
when in described preparation pond, liquid level reaches the level sensor low level setting value in preparation, described electric gate valve is opened, water level sensor by signal transmission to electric gate valve, described electric gate valve is opened, preparation is added the preparation pond in casing by ascending pipe, and when preparation attains to a high place setting value, signal transmission is given described electric gate valve by level sensor, described electric gate valve closes, and stops injecting preparation.
beneficial effect:
1. thermocouple and casing completely cut off by the PVC insulation frame of mist film heating net of the present invention, thermocouple to insulate uniform arrangement in frame 1 at PVC, in boiler combustion process, just provide atomization preparation, makes desulphurization denitration process can in stove, and combustion-supporting preparation is provided, facilitate the burning of boiler.
preparation pond of the present invention is after operation a period of time, and the dirt accumulated in preparation pond is got rid of by the quick draining valves of bottom half; Carry out feedback regulation between electric gate valve and preparation water level sensor, the amount of formulation in preparation pond is regulated.
the present invention adopts the mode of auxiliary air distribution, combustion-supporting for atomization adjustment acid-base balance preparation spray feed is entered burner hearth, so not only facilitate the burning of fuel greatly, improve fire box temperature, be combined with nitrogen sulphur in combustion again, by the source of pollutant catabolic gene in burning, desulphurization denitration is completed in stove.So fundamentally solve boiler combustion and discharge the problem that a large amount of nitrogen sulfur compound pollutes and the operating cost greatly reducing boiler tail desulphurization denitration subsidiary engine, and due to the combustion aid function of this invention, boiler combustion efficiency is improved, economically there is great effect of coal saving.
preparation after the present invention can provide atomization enables desulphurization denitration in burner hearth, carry out reaching the object of in-furnace desulfurization, denitration, on the other hand the combustion-supporting preparation after atomization can be sent into burner hearth and play the effect improving efficiency of combustion by this device, and structure simply overhaul facilitate stable.
after power supply is closed, preparation sprays on ultrasonic mist generating device through carrier pipe by water pump, blower fan by the atomization preparation through ultrasonic mist generating device through air channel spray feed to boiler induced-draft fan import, atomization preparation enters burner hearth through boiler induced-draft fan.Water pump and blower fan are controlled by the time relay, and the requirement according to boiler different load and coal regulates the speed of service.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is top views of accompanying drawing 1.
accompanying drawing 3 is structural representations of ultrasonic mist generating device.
accompanying drawing 4 is left views of accompanying drawing 3.
accompanying drawing 5 is top views of accompanying drawing 3.
detailed description of the invention:
embodiment 1:
a kind of boiler ph balancing assists the device of air distribution, its composition comprises: casing 5, described casing is provided with water injection pipe 3, described water injection pipe one end is provided with electric gate valve 1, the described water injection pipe other end is arranged on described box house and has inside, preparation pond 8, described preparation pond is built with level sensor 2, transfer pipeline 10, described transfer pipeline is provided with circulating pump 9, the below of described transfer pipeline has ultrasonic mist generating device 11, described ultrasonic mist generating device is arranged on front air delivery duct 12, between described front air delivery duct and rear air delivery duct 14, blower fan 13 is installed.
embodiment 2:
boiler ph balancing according to embodiment 1 assists the device of air distribution, and described ultrasonic mist generating device comprises PVC and to insulate frame 18, and the described PVC frame that insulate is connected with described casing, evenly distributedly in described PVC insulation frame is provided with thermocouple 19.
embodiment 3:
boiler ph balancing according to embodiment 1 or 2 assists the device of air distribution, and the bottom in described preparation pond is provided with blow-off pipe 16, described blow-off pipe is provided with blowoff valve 15.
embodiment 4:
boiler ph balancing according to embodiment 1 or 2 assists the device of air distribution, is provided with control cabinet 7, inspection door 6 outside described casing, and described casing is arranged on base 17, described casing has air inlet 4.
embodiment 5:
boiler ph balancing described in claim 1-4 assists an air distribution method for the device of air distribution, and the method comprises the steps:
electric gate valve is opened, sulphur denitration preparation and combustion-supporting preparation enter the preparation pond in casing by ascending pipe, preparation in described preparation pond sprays on ultrasonic mist generating device by transfer pipeline by circulating pump, preparation is heated into atomizing steam by the thermocouple in described ultrasonic mist generating device, blower fan by the preparation after ultrasonic mist generating device atomization and Secondary Air through front air delivery duct and after air delivery duct send into boiler furnace and participate in desulphurization denitration and auxiliary combustion;
when in described preparation pond, liquid level reaches the level sensor low level setting value in preparation, described electric gate valve is opened, water level sensor by signal transmission to electric gate valve, described electric gate valve is opened, preparation is added the preparation pond in casing by ascending pipe, and when preparation attains to a high place setting value, signal transmission is given described electric gate valve by level sensor, described electric gate valve closes, and stops injecting preparation.
Claims (5)
1. a boiler ph balancing assists the device of air distribution, its composition comprises: casing, it is characterized in that: described casing is provided with water injection pipe, described water injection pipe one end is provided with electric gate valve, the described water injection pipe other end is arranged on described box house and has inside, preparation pond, described preparation pond is built with level sensor, transfer pipeline, described transfer pipeline is provided with circulating pump, the below of described transfer pipeline has ultrasonic mist generating device, described ultrasonic mist generating device is arranged on front air delivery duct, between described front air delivery duct and rear air delivery duct, blower fan is installed.
2. boiler ph balancing according to claim 1 assists the device of air distribution, it is characterized in that: described ultrasonic mist generating device comprises PVC insulation frame, the described PVC frame that insulate is connected with described casing, evenly distributedly in described PVC insulation frame is provided with thermocouple.
3. boiler ph balancing according to claim 1 and 2 assists the device of air distribution, it is characterized in that: the bottom in described preparation pond is provided with blow-off pipe, and described blow-off pipe is provided with blowoff valve.
4. the boiler ph balancing according to claim 1 or 2 or 3 assists the device of air distribution, it is characterized in that: be provided with control cabinet outside described casing and control atomization quantity, inspection door, described casing is arranged on base, and described casing has air inlet.
5. utilize the boiler ph balancing described in claim 1-4 to assist an air distribution method for the device of air distribution, it is characterized in that: the method comprises the steps:
Electric gate valve is opened, sulphur denitration preparation and combustion-supporting preparation enter the preparation pond in casing by ascending pipe, circulating pump by preparation in described preparation pond by transfer pipeline on ultrasonic mist generating device, preparation is heated into atomizing steam by the thermocouple in described ultrasonic mist generating device, blower fan by the preparation after ultrasonic mist generating device atomization and Secondary Air through front air delivery duct and after air delivery duct send into boiler furnace and participate in desulphurization denitration and auxiliary combustion;
When in described preparation pond, liquid level reaches the level sensor low level setting value in preparation, described electric gate valve is opened, water level sensor by signal transmission to electric gate valve, described electric gate valve is opened, preparation is added the preparation pond in casing by ascending pipe, and when preparation attains to a high place setting value, signal transmission is given described electric gate valve by level sensor, described electric gate valve closes, and stops injecting preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839498.0A CN104534490B (en) | 2014-12-30 | 2014-12-30 | The device and air distribution method of boiler ph balancing auxiliary air distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839498.0A CN104534490B (en) | 2014-12-30 | 2014-12-30 | The device and air distribution method of boiler ph balancing auxiliary air distribution |
Publications (2)
| Publication Number | Publication Date |
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| CN104534490A true CN104534490A (en) | 2015-04-22 |
| CN104534490B CN104534490B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410839498.0A Expired - Fee Related CN104534490B (en) | 2014-12-30 | 2014-12-30 | The device and air distribution method of boiler ph balancing auxiliary air distribution |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196319A (en) * | 1984-10-16 | 1986-05-15 | Hitachi Zosen Corp | Method of low nox combustion to be performed along with desulfurization |
| CN1185778A (en) * | 1995-03-16 | 1998-06-24 | 纳可环技公司 | Simplified efficient process for reducing NOx, SOx and particulates |
| CN101091868A (en) * | 2007-04-13 | 2007-12-26 | 赵琪琤 | Desulfurization method by ultrasonic atomization |
| WO2008103477A2 (en) * | 2007-02-23 | 2008-08-28 | Aptech Engineering Services, Inc. | Process for reduction of sulfur compounds and nitrogen compounds in the exhaust gases of combustion devices |
| CN101433799A (en) * | 2008-12-04 | 2009-05-20 | 哈尔滨工业大学 | Selective non-catalytic reduction method for gasifying and atomizing biomass and used boiler |
| CN103691293A (en) * | 2014-01-13 | 2014-04-02 | 广东清华中邦热能科技有限公司 | Novel SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) hybrid denitrification system |
| CN104056542A (en) * | 2014-06-09 | 2014-09-24 | 广西壮族自治区建筑材料科学研究设计院 | SNCR (selective non-catalytic reduction) denitration method and SNCR denitration device |
| CN204388098U (en) * | 2014-12-30 | 2015-06-10 | 黑龙江国德节能服务有限公司 | Boiler ph balancing assists the device of air distribution |
-
2014
- 2014-12-30 CN CN201410839498.0A patent/CN104534490B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196319A (en) * | 1984-10-16 | 1986-05-15 | Hitachi Zosen Corp | Method of low nox combustion to be performed along with desulfurization |
| CN1185778A (en) * | 1995-03-16 | 1998-06-24 | 纳可环技公司 | Simplified efficient process for reducing NOx, SOx and particulates |
| WO2008103477A2 (en) * | 2007-02-23 | 2008-08-28 | Aptech Engineering Services, Inc. | Process for reduction of sulfur compounds and nitrogen compounds in the exhaust gases of combustion devices |
| CN101091868A (en) * | 2007-04-13 | 2007-12-26 | 赵琪琤 | Desulfurization method by ultrasonic atomization |
| CN101433799A (en) * | 2008-12-04 | 2009-05-20 | 哈尔滨工业大学 | Selective non-catalytic reduction method for gasifying and atomizing biomass and used boiler |
| CN103691293A (en) * | 2014-01-13 | 2014-04-02 | 广东清华中邦热能科技有限公司 | Novel SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) hybrid denitrification system |
| CN104056542A (en) * | 2014-06-09 | 2014-09-24 | 广西壮族自治区建筑材料科学研究设计院 | SNCR (selective non-catalytic reduction) denitration method and SNCR denitration device |
| CN204388098U (en) * | 2014-12-30 | 2015-06-10 | 黑龙江国德节能服务有限公司 | Boiler ph balancing assists the device of air distribution |
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| CN104534490B (en) | 2017-08-01 |
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Granted publication date: 20170801 Termination date: 20171230 |