CN104154520A - Energy-saving and environment-friendly boiler - Google Patents
Energy-saving and environment-friendly boiler Download PDFInfo
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- CN104154520A CN104154520A CN201410405387.9A CN201410405387A CN104154520A CN 104154520 A CN104154520 A CN 104154520A CN 201410405387 A CN201410405387 A CN 201410405387A CN 104154520 A CN104154520 A CN 104154520A
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Abstract
The invention discloses an energy-saving and environment-friendly boiler which comprises a combustion device, a boiler body and a smoke emission and waste heat recovery device. The combustion device comprises a draught fan, a combustion chamber, an igniter, a fuel supply device and a grid gasifying device. The boiler body comprises a boiler cylinder, an inner container, a smoke tube and a boiler cylinder base. The smoke emission and waste heat recovery device comprises a washing tower, a circulating and purifying device and a waste heat recovery device body. The inner container is a dual-layer inner container of a waveform structure and comprises an outer container body, an inner container body, a connector flange and an end socket. The circulating and purifying device comprises a liquid inlet pipe, a circulating pump, a liquid output pipe, a sprayer and an acid-base neutralization pool. By means of the energy-saving and environment-friendly boiler, fuel can be fully combusted, and the inner container is large in space, long in smoke flow path and high in heat exchange efficiency; the dual-layer inner container is arranged, and therefore sealing performance and thermal insulation performance of the boiler are greatly enhanced, and energy is better saved; smoke emitted out of the washing tower is made to reach the environmental protection standard; due to the waste heat recovery device body, waste heat in the smoke is recycled.
Description
Technical field
The present invention relates to a kind of boiler, specifically a kind of energy-saving, environmental protection boiler.
Background technology
Boiler is a kind of energy conversion, have the forms such as heat energy of chemical energy in fuel, electric energy, high-temperature flue gas, and through boiler conversion, outwards output has steam, high-temperature water or the organic heat carrier of certain heat energy to the energy of boiler input.Be used for thermal power station, boats and ships, locomotive and industrial and mining enterprises.Existing vertical oil-gas boiler has following defect: after inside goes wrong, cannot check and overhaul, be subject to the restriction of flue tube structure, flame profile can not get launching completely, burns insufficient, and high-temperature flue gas directly washes away flue wall or the base tube sheet on opposite, easily cause hot-spot damage, flue gas flow is short, and not enough at residing time in furnace, heat is not fully utilized, exhaust gas temperature is higher, and the thermal efficiency is low.When using oil-burning gas-fired boiler to carry out heat conversion, the flue-gas temperature of oil-burning gas-fired boiler discharge is conventionally between 150-250 degree Celsius, in flue gas, contained amount of heat along with lost-this part heat of flue gas will account for the 10-20% of fuel total amount of heat conventionally, in addition, at fuel oil, in combustion gas, still contain a small amount of sulphur and the compound of sulphur, in high-temp combustion process, can react with airborne nitrogen and oxygen, and when using fuel oil as fuel, also can generating portion carbon black suspension, hence one can see that, the fume emission of the oil-burning gas-fired boiler environmental protection standard that is also far from reaching, and the amount of heat in flue gas is not recycled yet.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving, environmental protection boiler, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
An energy-saving, environmental protection boiler, comprises burner, boiler body and fume emission waste-heat recovery device, and described burner comprises blower fan, combustion chamber, igniter, fuel supply system and grid vapourizing unit, described boiler body comprises drum, flue, smoke pipe and drum base, described smoke discharging device comprises scrubbing tower, circulating purifying device and waste-heat recovery device, the air outlet of described blower fan connects combustion chamber, and described grid vapourizing unit one end is communicated with combustion chamber, and the other end is communicated with boiler body, and between combustion chamber and boiler body, described grid vapourizing unit is by shell and grid is affixed forms, described drum vertically stands on ground, the upper and lower both ends horizontal welding upper perforated plate of described drum and lower perforated plate, described upper perforated plate is provided with relief valve connection and steam or hot water outlet, described boiler body lower end is provided with exhanst gas outlet, described flue is the double-deck flue of waveform configuration, comprise outer courage, inner bag, flange and end socket, on described flange, be provided with equally distributed screwed hole, described flue and drum are arranged on same longitudinal axis, described burner is fixed on flue by flange, on the upper end of described flue and lower perforated plate, be all provided with the spaced through hole of three rows, described smoke pipe is threaded flue, the corresponding through hole that is welded on flue upper end and lower perforated plate of arranging, its two ends, form inside and outside three beams smoke pipe, perpendicular to the ground the standing on lower perforated plate of tube wall of described smoke pipe, the through hole of described lower perforated plate is connected to exhanst gas outlet, described drum upper end arranges pressure gauge connection, pressure regulator valve interface and water level interface, described drum lower end arranges soft water water inlet and sewage draining exit, described sewage draining exit is connected to lower perforated plate inner side, described drum, flue, upper perforated plate, lower perforated plate and end socket surround an airtight pressure vessel that can hold water and steam, described scrubbing tower is provided with gas approach and exhaust opening, described circulating purifying device comprises feed tube, circulating pump, drain pipe, be arranged on the spray thrower and the acid-base neutralization pond that is arranged on bottom, scrubbing tower tower chamber of upper end, scrubbing tower tower chamber, described circulating pump is connected with acid-base neutralization pond by feed tube, circulating pump is connected with spray thrower by drain pipe, described acid-base neutralization pond is provided with overfall, acid-base value detector and the acid & alkali liquid conveyer being connected with acid-base neutralization pond, described waste-heat recovery device is arranged on the pipeline of drain pipe, and connect cooling water inlet and hot water outlet, the exhanst gas outlet of described boiler body is connected with the gas approach of scrubbing tower by flue.
As the further scheme of the present invention: described grid forms by intersecting affixed stainless steel materials.
As the present invention's scheme further: on described outer courage around roll extrusion many positive C type reinforcements, on inner bag around roll extrusion many anti-C type reinforcements.
As the present invention's scheme further: described outer courage and inner bag all adopt high temperature resistant stainless steel plate to make.
As the present invention's scheme further: described drum outside is provided with insulating, and described insulating outside is provided with baffle.
As the present invention's scheme further: described three beams smoke pipe is arranged as concentric circles tubular.
As the present invention's scheme further: be cast with special-shaped refractory material in described shell base.
Compared with prior art, the invention has the beneficial effects as follows: under the effect of blower fan, the fuel of lighting is blown in grid vapourizing unit, because grid is heated, grid after heating is constantly further vaporized the fuel of lighting entering in it burn conversely again, make full combustion of fuel, boiler body by by flue and shell longitudinal axis perpendicular to ground, boiler furnace flue space is large, flue gas flow is long, heat exchange efficiency is high, the double-deck flue arranging, closed type and the heat insulating ability of boiler body are strengthened greatly, particularly outer courage and inner bag are distinguished positive C type reinforcement and the anti-C type reinforcement of roll extrusion, greatly improved the anti-pressure ability of flue, and flue shape and flame profile match, flame is launched completely, fuel is fully burning again, more energy-conservation, by by the tube wall of smoke pipe perpendicular to ground, avoided high-temperature flue gas directly to wash away flue wall or the base tube sheet on opposite, the hot-spot that causes oil-burning gas-fired boiler is damaged, by from flue gas out of boiler flue gas outlet, through scrubbing tower, flue gas is contained flue dust, S02, NOx, TSP, the compositions such as CO are disposed, make the flue gas emitting from scrubbing tower reach environmental protection standard, by waste-heat recovery device is set, waste heat in flue gas is recycled.
Accompanying drawing explanation
Fig. 1 is the structural representation of energy-saving, environmental protection boiler.
Fig. 2 is that in energy-saving, environmental protection boiler, A-A analyses and observe view.
Fig. 3 is that in energy-saving, environmental protection boiler, B-B analyses and observe view.
In figure: blower fan 1, combustion chamber 2, igniter 3, fuel supply system 4, grid vapourizing unit 5, shell 51, grid 52, relief valve connection 6, flange 7, steam or hot water outlet 8, pressure gauge connection 9, pressure regulator valve interface 10, upper perforated plate 11, water level interface 12, smoke pipe 13, drum 14, insulating 15, baffle 16, outer courage 17, inner bag 18, positive C type reinforcement 19, anti-C type reinforcement 20, end socket 21, lower perforated plate 22, soft water water inlet 23, sewage draining exit 24, abnormity refractory material 25, drum base 26, exhanst gas outlet 27, overfall 28, gas approach 29, acid-base neutralization pond 30, scrubbing tower 31, feed tube 32, acid & alkali liquid conveyer 33, circulating pump 34, cooling water inlet 35, hot water outlet 36, waste-heat recovery device 37, drain pipe 38, spray thrower 39, exhaust opening 40.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1～3, in the embodiment of the present invention, an energy-saving, environmental protection boiler, comprises burner, boiler body and fume emission waste-heat recovery device, and described burner comprises blower fan 1, combustion chamber 2, igniter 3, fuel supply system 4 and grid vapourizing unit 5, described boiler body comprises drum 14, flue, smoke pipe 13 and drum base 26, described smoke discharging device comprises scrubbing tower 31, circulating purifying device and waste-heat recovery device 37, described grid vapourizing unit 5 one end are communicated with combustion chamber 2, the other end is communicated with boiler body, between combustion chamber 2 and boiler body, described grid vapourizing unit 5 is by shell 51 and grid 52 is affixed forms, described grid 52 consists of the affixed stainless steel materials of intersection, and the wind outlet of described blower fan 1 connects combustion chamber 2, and its wind directly blows to grid vapourizing unit 5, under the effect of blower fan 1, the fuel of lighting is blown into grid vapourizing unit 5 and enters in boiler 5, described drum 14 vertically stands on ground, described drum is both ends horizontal welding upper perforated plate 11 and lower perforated plate 22 Shang Xia 14, described upper perforated plate 11 is provided with relief valve connection 6 and steam or hot water outlet 8, described boiler body lower end is provided with exhanst gas outlet 27, described flue is the double-deck flue of waveform configuration, comprise outer courage 17, inner bag 18, flange 7 and end socket 21, on described outer courage 2 around roll extrusion many positive C type reinforcements 19, on inner bag 18 around roll extrusion many anti-C type reinforcements 20, described outer courage 17 and inner bag 18 all adopt high temperature resistant stainless steel plate to make, on described flange 7, be provided with equally distributed screwed hole, by screwed hole, be fixedly connected with boiler body, described flue and drum 14 are arranged on same longitudinal axis, described burner is fixed on flue by flange 7, on the upper end of described flue and lower perforated plate 22, be all provided with the spaced through hole of three rows, described smoke pipe 13 is threaded flue, the corresponding through hole that is welded on flue upper end and lower perforated plate 22 of arranging, its two ends, form inside and outside three beams smoke pipe 13, described three beams smoke pipe 13 is arranged as concentric circles tubular, perpendicular to the ground the standing on lower perforated plate 22 of tube wall of described smoke pipe 13, the through hole of described lower perforated plate 22 is connected to exhanst gas outlet 27, described drum 14 upper ends arrange pressure gauge connection 9, pressure regulator valve interface 10 and water level interface 12, described drum 14 lower ends arrange soft water water inlet 23 and sewage draining exit 24, described sewage draining exit 24 is connected to lower perforated plate 22 inner sides, described drum 14 outsides are provided with insulating 15, described insulating 15 outsides are provided with baffle 16, in described shell base 20, be cast with special-shaped refractory material 25, described drum 14, flue, upper perforated plate 11, lower perforated plate 22 and end socket 7 surround an airtight pressure vessel that can hold water and steam, described scrubbing tower 31 is provided with gas approach 29 and exhaust opening 40, described circulating purifying device comprises feed tube 32, circulating pump 34, drain pipe 38, be arranged on the spray thrower 39 and the acid-base neutralization pond 30 that is arranged on scrubbing tower 31 bottoms, tower chambers of scrubbing tower 31 upper ends, tower chamber, described circulating pump 34 is connected with acid-base neutralization pond 30 by feed tube 32, circulating pump 34 is connected with spray thrower 39 by drain pipe 38, described acid-base neutralization pond 30 is provided with overfall 28, acid-base value detector and the acid & alkali liquid conveyer 33 being connected with acid-base neutralization pond 30, described waste-heat recovery device 37 is arranged on the pipeline of drain pipe 38, and connect cooling water inlet 35 and hot water outlet 36, the exhanst gas outlet 27 of described boiler body is connected with the gas approach 29 of scrubbing tower 31 by flue.
Operation principle of the present invention is: by fuel feed system 4, fuel oil or combustion gas are inputted in combustion chamber 2, through igniter 3, lighted, under the effect of blower fan 1, the fuel of lighting is blown in grid vapourizing unit 5, and enter in boiler through grid 52, because grid 52 is heated, grid 52 after heating is constantly further vaporized the fuel of lighting entering in it burn conversely again, make full combustion of fuel, the high-temperature flue gas producing after fuel combustion flows from top to bottom in flue, while arriving the bottom of flue, heated gas floating principle and high-speed flame are to the effect of entrainmenting refluxing, through end socket 21, turn back and upwards flow and get back to flue top along inboard wall of furnace, formation center Hui Yan, by center Hui Yan, fuel is fully burned again, increase flue gas disturbance simultaneously, extend the time of staying of high-temperature flue gas in flue, can realize making full use of of heat energy, owing to being provided with double-deck flue, closed type and the heat insulating ability of boiler body are strengthened greatly, particularly outer courage 17 and inner bag 18 are distinguished positive C type reinforcement 19 and the anti-C type reinforcement 20 of roll extrusion, greatly improved the anti-pressure ability of flue, in process, flue is carried out to radiation and convection heat transfer, the smoke pipe entrance of flue gas by flue top enters smoke pipe to carry out after convection heat transfer, through exhanst gas outlet 27, by flue, send in scrubbing tower 31, flue gas is when the spray thrower 39 through in scrubbing tower 31, contained S02 in flue gas, NOx, TSP, CO and with heat from the water of spray thrower 39 ejection, absorbed, form high temperature, acid condensate water, accumulate scrubbing tower, in the acid-base neutralization pond 30 of 31 bottoms, removed contained S02, NOx, TSP, the clean low-temperature flue gas of CO passes through the exhaust opening 40 of scrubbing tower 31 discharged to atmosphere, accumulate in the high temperature in acid-base neutralization pond 31, acid condensed water is detected the acidity of condensed water by the acid-base value detector being connected with acid & alkali liquid conveyer 33, and the appropriate basic agent of automatic transport, the neutral hot water that is neutralized rear formation enters circulating pump 34 by feed tube 32, by circulating pump 34, enter in drain pipe 38, in drain pipe 38 by waste-heat recovery device 37 by the waste heat recovery in water, water after being cooled enters again 39 pairs of flue gases of spray thrower and carries out spray washing, form flue gas recirculation purified treatment, when the hot water in acid-base neutralization pond 30 surpasses overfall 17, by overfall 17, discharge scrubbing tower 31.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (7)
1. an energy-saving, environmental protection boiler, comprise burner, boiler body and fume emission waste-heat recovery device, it is characterized in that, described burner comprises blower fan (1), combustion chamber (2), igniter (3), fuel supply system (4) and grid vapourizing unit (5), described boiler body comprises drum (14), flue, smoke pipe (13) and drum base (26), described smoke discharging device comprises scrubbing tower (31), circulating purifying device and waste-heat recovery device (37), the air outlet of described blower fan (1) connects combustion chamber (2), described grid vapourizing unit (5) one end is communicated with combustion chamber (2), the other end is communicated with boiler body, be positioned between combustion chamber (2) and boiler body, described grid vapourizing unit (5) is by shell (1) and grid (52) affixed composition, described drum (14) vertically stands on ground, the upper and lower both ends horizontal welding upper perforated plate (11) of described drum (14) and lower perforated plate (22), described upper perforated plate (11) is provided with relief valve connection (6) and steam or hot water outlet (8), described boiler body lower end is provided with exhanst gas outlet (27), described flue is the double-deck flue of waveform configuration, comprise outer courage (17), inner bag (18), flange (7) and end socket (21), described flange is provided with equally distributed screwed hole on (7), described flue and drum (14) are arranged on same longitudinal axis, described burner is fixed on flue by flange (7), on the upper end of described flue and lower perforated plate (22), be all provided with the spaced through hole of three rows, described smoke pipe (13) is threaded flue, the corresponding through hole that is welded on flue upper end and lower perforated plate (22) of arranging, its two ends, form inside and outside three beams smoke pipe (13), perpendicular to the ground the standing on lower perforated plate (22) of tube wall of described smoke pipe (13), the through hole of described lower perforated plate (22) is connected to exhanst gas outlet (27), described drum (14) upper end arranges pressure gauge connection (9), pressure regulator valve interface (10) and water level interface (12), described drum (14) lower end arranges soft water water inlet (23) and sewage draining exit (24), described sewage draining exit (24) is connected to lower perforated plate (22) inner side, described drum (14), flue, upper perforated plate (11), lower perforated plate (22) and end socket (7) surround an airtight pressure vessel that can hold water and steam, described scrubbing tower (31) is provided with gas approach (29) and exhaust opening (40), described circulating purifying device comprises feed tube (32), circulating pump (34), drain pipe (38), be arranged on the spray thrower (39) of upper end, scrubbing tower (31) tower chamber and be arranged on the acid-base neutralization pond (30) of scrubbing tower (31) tower chamber bottom, described circulating pump (34) is connected with acid-base neutralization pond (30) by feed tube (32), circulating pump (34) is connected with spray thrower (39) by drain pipe (38), described acid-base neutralization pond (30) is provided with overfall (28), acid-base value detector and the acid & alkali liquid conveyer (33) being connected with acid-base neutralization pond (30), described waste-heat recovery device (37) is arranged on the pipeline of drain pipe (38), and connect cooling water inlet (35) and hot water outlet (36), the exhanst gas outlet of described boiler body (27) is connected with the gas approach (29) of scrubbing tower (31) by flue.
2. energy-saving, environmental protection boiler according to claim 1, is characterized in that, described grid (52) consists of the affixed stainless steel materials of intersection.
3. energy-saving, environmental protection boiler according to claim 1, is characterized in that, described outer courage (2) has been gone up around roll extrusion many positive C type reinforcements (19), and inner bag (18) has been gone up around roll extrusion many anti-C type reinforcements (20).
4. according to the energy-saving, environmental protection boiler described in claim 1 or 3, it is characterized in that, described outer courage (17) and inner bag (18) all adopt high temperature resistant stainless steel plate to make.
5. energy-saving, environmental protection boiler according to claim 1, is characterized in that, described drum (14) outside is provided with insulating (15), and described insulating (15) outside is provided with baffle (16).
6. energy-saving, environmental protection boiler according to claim 1, is characterized in that, described three beams smoke pipe (13) is arranged as concentric circles tubular.
7. energy-saving, environmental protection boiler according to claim 1, is characterized in that, in described shell base (20), is cast with special-shaped refractory material (25).
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| CN201410405387.9A CN104154520B (en) | 2014-08-18 | 2014-08-18 | A kind of energy-saving, environmental protection boiler |
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| CN201410405387.9A CN104154520B (en) | 2014-08-18 | 2014-08-18 | A kind of energy-saving, environmental protection boiler |
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| CN104154520B CN104154520B (en) | 2015-11-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107504676A (en) * | 2017-09-22 | 2017-12-22 | 北京中科传能环保技术有限公司 | Gas fired-boiler with purification function |
| CN108534389A (en) * | 2018-06-09 | 2018-09-14 | 连云港市擎天德邦科技发展有限公司 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
| CN109386826A (en) * | 2018-10-10 | 2019-02-26 | 深圳市大能节能技术有限公司 | A kind of high energy efficiency steam generator with waste-heat recovery device |
| CN109718109A (en) * | 2019-02-22 | 2019-05-07 | 安徽华润金蟾药业股份有限公司 | A kind of prepared slices of Chinese crude drugs concocting process heat reclaim unit |
| CN112677499A (en) * | 2020-12-22 | 2021-04-20 | 上海航天化工应用研究所 | Solid rocket engine heat insulation layer roll extrusion paster device |
| CN114353319A (en) * | 2022-01-14 | 2022-04-15 | 遵义朝宇锅炉有限公司 | Clear stifled device and boiler equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107504676A (en) * | 2017-09-22 | 2017-12-22 | 北京中科传能环保技术有限公司 | Gas fired-boiler with purification function |
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| CN114353319A (en) * | 2022-01-14 | 2022-04-15 | 遵义朝宇锅炉有限公司 | Clear stifled device and boiler equipment |
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| CN104154520B (en) | 2015-11-04 |
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Inventor after: Qiu Binhai Inventor before: He Xuhui Inventor before: Zhang Jing |
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Effective date of registration: 20170420 Address after: 510430 Shimen Industrial Zone, Chaoyang village, Baiyun District, Guangdong, A5,, China, Patentee after: GUANGZHOU YUEWEI BOILERS CO., LTD. Address before: In 237012 West Anhui University Anhui city of Lu'an province Yu'an district headquarters Patentee before: West Anhui University |
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