CN101666489A - Combustion device of petroleum coke slurry - Google Patents
Combustion device of petroleum coke slurry Download PDFInfo
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- CN101666489A CN101666489A CN200910024119A CN200910024119A CN101666489A CN 101666489 A CN101666489 A CN 101666489A CN 200910024119 A CN200910024119 A CN 200910024119A CN 200910024119 A CN200910024119 A CN 200910024119A CN 101666489 A CN101666489 A CN 101666489A
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Abstract
The invention relates to a combustion device of petroleum coke slurry, comprising a heat accumulation cavity, a fuel oil/gas duty nozzle, a petroleum coke slurry atomizing nozzle, an inner combustionair nozzle and an outer combustion air nozzle. The heat accumulation cavity is arranged in a hearth; the fuel oil/gas duty nozzle is arranged on a furnace wall and communicated with the heat accumulation cavity; the petroleum coke slurry atomizing nozzle, the inner combustion air nozzle and the outer combustion air nozzle which are communicated with the heat accumulation cavity are sequentially sleeved at the outer side of the fuel oil/gas duty nozzle from interior to exterior; and an inner combustion air swirl generator and an outer combustion air swirl generator are respectively arranged inthe inner combustion air nozzle and the outer combustion air nozzle. Aiming at the characteristics of combustion difficulty and high combusting NOx contents of the petroleum coke slurry, the inventionadopts an atomizing mode to improve the temperature increase rate of petroleum coke particles; an ignition heat lowering technology realizes the stable ignition and the low-pollution combustion of the petroleum coke slurry; and the invention has the advantages of strong pertinence, convenience, adjustment, mature technology, high combustion efficiency and convenient processing and manufacture.
Description
Technical field
The invention belongs to the burner of Thermal Energy and Power Engineering technical field, be specifically related to a kind of combustion device of petroleum coke slurry.
Background technology
Petroleum coke is that the mink cell focus that produced with crude distillation or asphalt, residual oil, tar are that raw material is handled the product that (hot tearing process) is transformed through coking, is a kind of byproduct that the oil deep processing produces.In recent years, the delay coking process fast development, the deep processing of oil becomes one of main technological route of petrochemical industry, and therefore, the output of petroleum coke increases fast.
Petroleum coke is a kind of high heating value, high sulfur content, low ash content, low volatile product.The content of fixed carbon is up to more than 80%～90% in the petroleum coke, but volatile matter content has only about 10%, and fuel performance and anthracite are very approaching.The fuel fire difficulty, pollutant growing amount height.Present stage, the price of petroleum coke fuel is much lower with respect to coal and heavy oil, acts as a fuel the petroleum coke price used about about 300 yuan/t, only be have identical heat the heavy oil price about 1/4th, about 1/2nd of burned coal price.According to above background,, will obtain better economic and be worth and safe value, but prerequisite is at first will be up to state standards aspect environmental protection if can be used effectively.
The present use approach of petroleum coke fuel has CFBC, with the coal multifuel combustion, make technology such as petroleum charred slurry burning, and the burner that is applicable to the petroleum charred slurry burning substantially all rests in the transformation of existing equipment, does not also have the burner of developing at petroleum charred slurry especially.Petroleum charred slurry has good mobility, and this atomizing for petroleum charred slurry is very favourable.Yet owing to the volatile matter content of petroleum charred slurry is lower, catching fire of the initial stage of therefore burning is difficult with steady combustion; The oxysulfide content that petroleum charred slurry burning back produces is higher, and the load of desulfurizer increases; Nitrogen content is very high in the petroleum charred slurry, can produce a large amount of NOx after the burning, can't satisfy the index of national requirements for environmental protection; The petroleum charred slurry ignition temperature is lower, and uncompleted burned carbon is than higher in the combustion product.
Summary of the invention
The objective of the invention is to overcome an above-mentioned prior art difficult problem, provide a kind of and adapted to that petroleum charred slurry is efficient, the combustion device of petroleum coke slurry of smooth combustion.
For achieving the above object, the technical solution used in the present invention is: comprise the accumulator tank that is arranged in the burner hearth, and be arranged on the oil and gas that is connected with accumulator tank on furnace wall jet pipe on duty, be set with petroleum charred slurry atomizing nozzle, internal layer combustion air jet pipe and the outer combustion air jet pipe that is connected with accumulator tank from inside to outside successively in the outside of oil and gas jet pipe on duty, be respectively arranged with internal layer combustion air rotational flow generator and outer combustion air rotational flow generator in internal layer combustion air jet pipe and the outer combustion air jet pipe.
It is adjustable that the present invention is arranged on the insertion depth of the accumulator tank in the burner hearth, and this accumulator tank is to adopt the cavity of the parabolic type molded lines design that fire-resistant heat-storing material cast forms;
Said internal layer combustion air jet pipe and outer combustion air nozzle exit are the enlarging structure;
The inlet of said internal layer combustion air jet pipe and outer combustion air jet pipe also is provided with the air conditioning baffle plate of regulating air quantity;
The inside and outside layer combustion air rotational flow generator that is provided with in the said inside and outside layer combustion air jet pipe is axial rotational flow generator, along the circumferential directions of inside and outside layer combustion air jet pipe, and on inside and outside layer combustion air rotational flow generator, also be respectively arranged with and regulate itself and the governor motion of inside and outside layer of combustion air jet pipe jet opening distance.
Petroleum charred slurry of the present invention sprays in the burner hearth after petroleum charred slurry atomizer atomizing, increased that fuel is heated and with the air contacted specific surface area, improve the heating rate of fuel, realize fast, stable ignition.Fuel oil/gas nozzle on duty the igniting initial stage with easily ignitable gas or oil fuel, stable ignition source is provided, further improve the flame holding of burner and the steady combustion ability under the underload situation.The rotational flow generator of combustion air in inside and outside layer combustion air nozzle infeeds in the burner hearth with the form of strong rotating jet, form stable high temperature gases recirculating district in the burner outlet position, the high temperature reflux flue gas mixes with the atomizing petroleum charred slurry, heat is passed to fuel fast, to form stable ignition source.Adopt accumulator tank to strengthen the heating rate of burner outlet place fuel.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Oil and gas jet pipe 1 on duty, petroleum charred slurry atomizing nozzle 2, internal layer combustion air jet pipe 3, combustion air flow controllable register 4, outer combustion air jet pipe 5, internal layer combustion air rotational flow generator 6, outer combustion air rotational flow generator 7, furnace wall 8, accumulator tank 9.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, the present invention includes the adjustable accumulator tank 9 of insertion depth that is arranged in the burner hearth, this accumulator tank 9 is cavitys that the fire-resistant heat-storing material of employing is poured into a mould the parabolic type molded lines design that forms, furnace wall 8 is provided with the oil and gas that is connected with accumulator tank 9 jet pipe 1 on duty, the outside at oil and gas jet pipe 1 on duty is set with the petroleum charred slurry atomizing nozzle 2 that is connected with accumulator tank 9 from inside to outside successively, internal layer combustion air jet pipe 3 and outer combustion air jet pipe 5, internal layer combustion air jet pipe 3 and 5 outlets of outer combustion air jet pipe are the enlarging structure, the inlet of internal layer combustion air jet pipe 3 and outer combustion air jet pipe 5 also is provided with the air conditioning baffle plate 4 of regulating air quantity, be respectively arranged with internal layer combustion air rotational flow generator 6 and outer combustion air rotational flow generator 7 in internal layer combustion air jet pipe 3 and the outer combustion air jet pipe 5, in, outer combustion air rotational flow generator 6,7 is axial rotational flow generator, in the edge, outer combustion air jet pipe 3,5 circumferential directions, and interior, outer combustion air rotational flow generator 6, also be respectively arranged with on 7 regulate its with in, outer combustion air jet pipe 3, the governor motion of 5 jet opening distances.
Oil and gas of the present invention nozzle 1 on duty puts into operation under igniting initial stage and underload situation, and stable ignition source is provided, and center wind only is provided when the burner operate as normal, to regulate the length of flame and parameters such as position, recirculating zone, size.Petroleum charred slurry is sprayed in the burner hearth by petroleum charred slurry atomizing nozzle 2, contacts with combustion air with the high temperature reflux flue gas with the form of atomized fuel, strengthens heating rate, realizes stable ignition.Combustion air divides inside and outside two-layerly respectively combustion air is infeeded in the burner hearth, and the internal layer combustion air forms stable high temperature gases recirculating district, and needed oxygen of burning initial stage is provided; Outer combustion air prolongs the length of flame, provides completing combustion needed oxygen.Inside and outside two-layer combustion air carries out assignment of traffic automatically by controllable register 4, increases internal layer combustion air ratio the length of flame will be shortened, and the initial reaction stage ignition temperature increases; Otherwise, the length of flame will be increased, the initial reaction stage temperature reduces.Inside and outside two-layer combustion air all adopts the form of rotating jet, produces rotating jet by rotational flow generator, and this helps forming stable recirculating zone in the burner outlet position, and the mixed effect between the energy strengthening flow, the stable ignition of enhanced fuel.Accumulator tank 9 provides strong radiant heat source, and accumulator tank adopts the design of parabolic type molded lines, the expansion that helps rotating jet with mix, effectively intensified burner exports the heating rate of fuel, further improves the stability of flame.In addition, when the burner changing load, the insertion depth of accumulator tank can be regulated easily, has further increased the stability of flame, has improved the steady combustion scope of this type burner.When the burner thermic load changes, can insert the variation that the degree of depth of burner hearth adapts to thermic load by regulating accumulator tank.
The course of work of the present invention is as follows: petroleum charred slurry sprays in the burner hearth after the atomizing of petroleum charred slurry atomizing nozzle, contact with the strong rotary combustion-supporting air of internal layer, the high temperature reflux flue gas Fast Heating petroleum charred slurry atomizing steam that entrainmented of Xuan Zhuan internal layer combustion air is rapidly heated it and catches fire simultaneously.Outer combustion air is in the flame flows outside, and progressively mixes with burned flame, and in the needed whole air capacities of later stage aftercombustion of burning.Inside and outside layer combustion air flow changes and can distribute easily by the position of controllable register, thereby can regulate flame profile, length.
Combustion air of the present invention adopts the mode of staged air distribution to infeed in the burner hearth, and the ratio of inside and outside two-layer combustion air is carried out Flow-rate adjustment by controllable register 4, and the internal layer combustion air forms stable high temperature gases recirculating district, and needed air of burning initial stage is provided.Because the initial stage amount of oxygen is restricted, and can not form the NOx pollutant in a large number in this zone; Outer combustion air provides burning needed air of later stage, the ratio of fixed carbon is very high in the petroleum charred slurry, form more uncompleted burned carbon particle easily, the oxygen concentration at restriction burning initial stage (the combustion air part is infeeded by skin) helps prolonging the length of flame, increase the time of staying of carbon granule in flame, improve the burn-off rate of carbon granule, realize high-efficient low polluting combustion.
Claims (5)
1, a kind of combustion device of petroleum coke slurry, it is characterized in that: comprise the accumulator tank (9) that is arranged in the burner hearth, and be arranged on furnace wall (8) and go up the oil and gas jet pipe on duty (1) be connected with accumulator tank (9), be set with the petroleum charred slurry atomizing nozzle (2) that is connected with accumulator tank (9) from inside to outside successively in the outside of oil and gas jet pipe on duty (1), internal layer combustion air jet pipe (3) and outer combustion air jet pipe (5) are respectively arranged with internal layer combustion air rotational flow generator (6) and outer combustion air rotational flow generator (7) in internal layer combustion air jet pipe (3) and the outer combustion air jet pipe (5).
2, combustion device of petroleum coke slurry according to claim 1 is characterized in that: the insertion depth that is arranged on the accumulator tank (9) in the burner hearth is adjustable, and this accumulator tank (9) is the cavity that the fire-resistant heat-storing material of employing is poured into a mould the parabolic type molded lines design that forms.
3, combustion device of petroleum coke slurry according to claim 1 is characterized in that: said internal layer combustion air jet pipe (3) and outer combustion air jet pipe (5) outlet are the enlarging structure.
4, combustion device of petroleum coke slurry according to claim 1 is characterized in that: the inlet of said internal layer combustion air jet pipe (3) and outer combustion air jet pipe (5) also is provided with the air conditioning baffle plate (4) of regulating air quantity.
5, combustion device of petroleum coke slurry according to claim 1, it is characterized in that: the inside and outside layer combustion air rotational flow generator (6,7) that is provided with in the said inside and outside layer combustion air jet pipe (3,5) is axial rotational flow generator, along the circumferential directions of inside and outside layer combustion air jet pipe (3,5), and on inside and outside layer combustion air rotational flow generator (6,7), also be respectively arranged with and regulate itself and the governor motion of inside and outside layer of combustion air jet pipe (3,5) jet opening distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910024119A CN101666489A (en) | 2009-09-28 | 2009-09-28 | Combustion device of petroleum coke slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910024119A CN101666489A (en) | 2009-09-28 | 2009-09-28 | Combustion device of petroleum coke slurry |
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| CN101666489A true CN101666489A (en) | 2010-03-10 |
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| CN200910024119A Pending CN101666489A (en) | 2009-09-28 | 2009-09-28 | Combustion device of petroleum coke slurry |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907295A (en) * | 2010-08-12 | 2010-12-08 | 浙江百能科技有限公司 | Low-NOx combustor for combusting coal water slurry and combustion method |
| CN102305398A (en) * | 2011-07-19 | 2012-01-04 | 中能兴科（北京）节能科技股份有限公司 | Heat accumulating type combustion device and method thereof |
| CN102364245A (en) * | 2011-08-18 | 2012-02-29 | 陈喜春 | Gasification environment-friendly energy-saving boiler |
| CN104145161A (en) * | 2012-02-27 | 2014-11-12 | 韦巴斯托股份公司 | Mobile heating unit which is operated by way of liquid fuel |
| CN105135449A (en) * | 2015-09-30 | 2015-12-09 | 西安航天源动力工程有限公司 | Incineration treatment system for HPF waste liquid |
| US9759448B2 (en) | 2012-02-27 | 2017-09-12 | Webasto SE | Mobile heating device operated with liquid fuel |
| US9970653B2 (en) | 2012-02-27 | 2018-05-15 | Webasto SE | Mobile heating unit operated by means of liquid fuel |
| CN110079363A (en) * | 2019-04-04 | 2019-08-02 | 中国寰球工程有限公司 | Petroleum coke high-temperature gasification nozzle |
| CN114111034A (en) * | 2021-11-09 | 2022-03-01 | 同济大学 | Low-nitrogen hot air nozzle device with adjustable temperature |
| CN114413280A (en) * | 2022-03-02 | 2022-04-29 | 上海交通大学 | Two-stage radial rotational flow standard model burner based on central rotational flow gear |
-
2009
- 2009-09-28 CN CN200910024119A patent/CN101666489A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907295A (en) * | 2010-08-12 | 2010-12-08 | 浙江百能科技有限公司 | Low-NOx combustor for combusting coal water slurry and combustion method |
| CN102305398A (en) * | 2011-07-19 | 2012-01-04 | 中能兴科（北京）节能科技股份有限公司 | Heat accumulating type combustion device and method thereof |
| CN102364245A (en) * | 2011-08-18 | 2012-02-29 | 陈喜春 | Gasification environment-friendly energy-saving boiler |
| CN102364245B (en) * | 2011-08-18 | 2013-12-11 | 陈喜春 | Gasification environment-friendly energy-saving boiler |
| US9759448B2 (en) | 2012-02-27 | 2017-09-12 | Webasto SE | Mobile heating device operated with liquid fuel |
| CN104145161A (en) * | 2012-02-27 | 2014-11-12 | 韦巴斯托股份公司 | Mobile heating unit which is operated by way of liquid fuel |
| US9970653B2 (en) | 2012-02-27 | 2018-05-15 | Webasto SE | Mobile heating unit operated by means of liquid fuel |
| CN105135449A (en) * | 2015-09-30 | 2015-12-09 | 西安航天源动力工程有限公司 | Incineration treatment system for HPF waste liquid |
| CN105135449B (en) * | 2015-09-30 | 2018-08-07 | 西安航天源动力工程有限公司 | A kind of burning processing system for HPF waste liquids |
| CN110079363A (en) * | 2019-04-04 | 2019-08-02 | 中国寰球工程有限公司 | Petroleum coke high-temperature gasification nozzle |
| CN110079363B (en) * | 2019-04-04 | 2024-02-20 | 中国寰球工程有限公司 | Petroleum coke high-temperature gasification nozzle |
| CN114111034A (en) * | 2021-11-09 | 2022-03-01 | 同济大学 | Low-nitrogen hot air nozzle device with adjustable temperature |
| CN114413280A (en) * | 2022-03-02 | 2022-04-29 | 上海交通大学 | Two-stage radial rotational flow standard model burner based on central rotational flow gear |
| CN114413280B (en) * | 2022-03-02 | 2022-11-08 | 上海交通大学 | Two-stage radial rotational flow standard model burner based on central rotational flow gear |
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Open date: 20100310 |