CN202688282U - Gasification furnace - Google Patents
Gasification furnace Download PDFInfo
- Publication number
- CN202688282U CN202688282U CN 201220134018 CN201220134018U CN202688282U CN 202688282 U CN202688282 U CN 202688282U CN 201220134018 CN201220134018 CN 201220134018 CN 201220134018 U CN201220134018 U CN 201220134018U CN 202688282 U CN202688282 U CN 202688282U
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- cavity
- chilled water
- vapourizing furnace
- chamber
- water shower
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Abstract
The utility model provides a gasification furnace which comprises a shell body, a combustion chamber, a quenching chamber, a downcomer, quench water sprayers and a slag water tank. The shell body is provided with an air outlet. The combustion chamber is arranged in the shell body. The quenching chamber is arranged under the combustion chamber inside the shell body and comprises a cavity and a funnel portion. A first end of the cavity is connected with an outlet of the combustion chamber. A second end of the cavity is connected with an inlet of the funnel portion. An outlet of the funnel portion is connected with a first end of the downcomer. The quench water sprayers are arranged on the inner wall of the cavity. A second end of the downcomer is inserted below the liquid level of the slag water tank. A sealed ring cavity is formed between the shell body and the quenching chamber and is connected with the air outlet. The quenching chamber of the gasification furnace comprises the cavity with big size arranged on the upper portion and the funnel portion arranged in the middle or on the lower portion. Consequently, circulating space on the upper portion inside the quenching chamber is increased, and the problems of agglomeration and blocking of coal slag are solved. Therefore, the gasification furnace has the advantages of long service life, high heat and mass transfer efficiency, simple structure and low cost.
Description
Technical field
The utility model relates to the coal gasification equipment field, more specifically, relates to a kind of vapourizing furnace.
Background technology
Gasification of coal refers to utilize under certain temperature and pressure condition vaporized chemical and coal reaction to generate the technology of crude synthesis gas, is an important method of coal being carried out chemical process.Coal gasification, especially high pressure, mass air stream bed gasification technology are the mainstream technologys of current gasification.Using the common feature that air flow bed gasifies to coal is pressurization (3.0MPa-6.0MPa), high temperature (1300-1700 ℃) and fine granularity.But process at coal, the charging form with mode, realize mixing, countermeasure is totally different on the technical units such as deslagging, waste heat recovery, thereby the technology group of formation different-style.At present, the typical vapourizing furnace of the pressurized air flow bed gasification technology of industrial applications mainly contains:
(1) Texaco (Texaco) vapourizing furnace: this vapourizing furnace is the coal water slurry gasification equipment of U.S. Texaco Petroleum Maatschappij (Netherland) B.V exploitation, and its shock chamber comprises downtake and upcast.Because the space of downtake and upcast is less, in service at vapourizing furnace, downtake is prone to the problem of dross, obstruction, can cause downtake bulge and flexural deformation when serious, thereby vapourizing furnace is caused damage, and is one of major reason that causes the vapourizing furnace parking.In addition, because raw gas and the free air space of lime-ash in this shock chamber are little, therefore, also can bring the inefficient problem of heat and mass.
(2) four nozzle vapourizing furnaces: four nozzle vapourizing furnaces are the coal water slurry gasification equipment of East China University of Science's exploitation, the structural similitude of the structure of its shock chamber and the shock chamber of Texaco gasifier, difference is, only downtake is set in the shock chamber and upcast is not set.This design has increased the rising space and the caloic transmission area after gas goes out water-bath.But, because the downtake in the shock chamber (being used for raw gas descends with lime-ash) is still identical with Texaco gasifier, therefore also can there be the problem identical with Texaco gasifier, can't move the coal of high ash content.
(3) Shell vapourizing furnace: this vapourizing furnace is Shell Co. Ltd's exploitation, adopts dry coal powder gasification, pot destroying process, and dry method dust has complex process, invests large shortcoming.It is generally acknowledged the Shell gasification technology that adopts pot destroying process and be not suitable for Coal Chemical Industry, and be applicable to generating.
(4) space flight vapourizing furnace: the space flight vapourizing furnace is by the exploitation of space industry department, adopts dry coal powder gasification, and its shock chamber is identical with Texaco gasifier.
(5) GSP vapourizing furnace: the GSP vapourizing furnace is the exploitation of front German Democratic Republic GDR fuel institute, at present this technology pass away a Subsidiary Company all.Do not have downtake and upcast in its shock chamber, raw gas and liquid lime-ash are directly cooled off by the chilled water that shower nozzle sprays.Circulation passage is large in the shock chamber of this vapourizing furnace, the gas-liquid heat-transfer space is large, heat exchange rate is high, can use the coal (up to 26%, the slagging scorification blockage problem does not appear in vapourizing furnace yet such as the peaceful coal GSP of Shenhua vapourizing furnace coal for gasification ash content, and vapourizing furnace itself can normally move) of high ash oontent.But, because the raw gas dustiness by vapourizing furnace output is high, bring problem for follow-up raw gas washing system, can cause pipeline, valve, the equipment abrasion of raw gas washing system very serious, usually the work-ing life of these pipelines, valve even also not enough January.The problems such as in addition, after the processing of raw gas washing system, the raw gas dustiness is still higher, and this can cause again the transformation system well heater to stop up, the protection bed layer pressure is large.Therefore, the raw gas dustiness is high, has become the matter of utmost importance of restriction gasification installation long-period stable operation.The best approach that addresses this problem is still carried out the deep purifying processing in vapourizing furnace inside to crude synthesis gas, uses the least possible ash band of raw gas of vapourizing furnace.
In sum, the shock chamber of Texaco gasifier, four nozzle vapourizing furnaces and space flight vapourizing furnace adopts downtake and water-bath structure design, and the raw gas dustiness of its output is low, but the caloic transfer efficiency is also relatively low; In addition, for high-ash coal, be prone to the problem of slagging scorification, obstruction, make the gasification installation can't long-period stable operation.The shock chamber of GSP vapourizing furnace not only caloic transfer efficiency is high, and applicable to the coal of high ash oontent, the problem of slagging scorification, obstruction can not occur; But the dust content of gas of its output is high, can bring a lot of problems to follow-up system, also can affect the long-term stability operation of gasification installation.
The utility model content
The utility model aims to provide a kind of vapourizing furnace, with slagging scorification, obstruction, the high problem of vapourizing furnace outlet raw gas dustiness that solves prior art.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of vapourizing furnace, comprising: housing is provided with the air outlet on the housing; Combustion chamber, combustion chamber are arranged in the housing; Shock chamber, shock chamber are arranged in the housing and are positioned at the below of combustion chamber; The shock chamber comprises cavity and pars infundibularis; The first end of cavity is connected with the outlet of combustion chamber, and the second end of cavity is connected with the entrance of pars infundibularis; Downtake, the outlet of pars infundibularis is connected with the first end of downtake; Chilled water shower nozzle, chilled water shower nozzle are arranged on the inwall of cavity; Pulp water pond, pulp water pond are arranged in the housing and are positioned at the below of shock chamber, and the second end of downtake inserts below the liquid level in pulp water pond; Form the annular chamber of sealing between housing and the shock chamber, annular chamber is connected with the air outlet.
Further, the number of chilled water shower nozzle is a plurality of.
Further, a plurality of chilled water shower nozzles vertically are divided on the inwall that multilayer is arranged on cavity.
Further, every layer of chilled water shower nozzle circumferentially is evenly arranged along cavity, and adjacent two-layer chilled water shower nozzle arranged crosswise.
Further, the nozzle of at least one deck chilled water shower nozzle in the multilayer chilled water shower nozzle is towards the direction setting of the inwall of cavity, and the nozzle of all the other each layer chilled water shower nozzles in the multilayer chilled water shower nozzle arranges towards the inside of shock chamber.
Further, a plurality of chilled water shower nozzles are arranged on identical At The Height.
Further, pars infundibularis comprises the liner of being made by silicon carbide, and the upper end of downtake is coated with carbide layers, and the length of carbide layers is 10～100cm.
Further, vapourizing furnace also comprises the de-bubble bar, and the de-bubble bar is arranged on the inside of annular chamber.
Further, the number of de-bubble bar is a plurality of, and a plurality of de-bubble bars are divided into multilayer and are arranged in the annular chamber, and the de-bubble bar has zigzag structure or spike structure, arranged crosswise between the adjacent two layers de-bubble bar.
The shock chamber of the vapourizing furnace in the utility model comprises the larger cavity of superposed volume and is positioned at the pars infundibularis of middle part or bottom, therefore, increased the space of shock chamber's internal upper part circulation, avoid the problem of lime-ash slagging scorification and obstruction, had long service life, the caloic transfer efficiency is fast, simple in structure, cost is low characteristics.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the vapourizing furnace in the utility model comprises: housing 10, combustion chamber 80, shock chamber 20, downtake 90, chilled water shower nozzle 70 and pulp water pond 30.Wherein, be provided with air outlet 11 on the housing 10, combustion chamber 80 is arranged in the housing 10, and shock chamber 20 is arranged in the housing 10 and is positioned at the below of combustion chamber 80.Preferably, the top of shock chamber 20 is connected with the housing of vapourizing furnace by the mode of welding.Especially, any combustion chamber of the prior art can be adopted in combustion chamber 80.
Chilled water shower nozzle 70 is arranged on the inwall of cavity 21 (special, chilled water shower nozzle 70 is close to the inwall setting of cavity 21), in order to the high temperature rough gas of combustion chamber 80 output is cooled off and washs, simultaneously, the liquid lime-ash of molten state can also be cooled off rapidly and be solidified into solid particulate.By the chilled water of chilled water shower nozzle 70 ejection, can raw gas and the liquid lime-ash of high temperature be sprayed and thermal exchange on the one hand, on the other hand, can also cool off raw gas, washing and humidification.
Preferably, the number of chilled water shower nozzle 70 is a plurality of.Further, a plurality of chilled water shower nozzles 70 vertically are divided on the inwall that multilayer is arranged on cavity 21, can also determine according to the payload of vapourizing furnace number and the number of plies of chilled water shower nozzle 70.By chilled water shower nozzle 70 being arranged on the form of multilayer, can further improve chill effect.Preferably, every layer of chilled water shower nozzle 70 circumferentially is evenly arranged along cavity 21, and chilled water shower nozzle 70 arranged crosswise of adjacent two layers, can further improve chill effect like this.Especially, the nozzle of at least one deck chilled water shower nozzle 70 in the multilayer chilled water shower nozzle 70 is towards the direction setting (namely the inwall to cavity 21 sprays) of the inwall of cavity 21,20 inside arranges the inside spray of cavity 21 (namely to) to the nozzle of all the other each layer chilled water shower nozzles 70 in the multilayer chilled water shower nozzle 70 towards the shock chamber, so that a part of chilled water sprays on the inwall of shock chamber, and form water membrane at the inwall of shock chamber, thereby reduce crude synthesis gas and lime-ash to the infringement of shock chamber's inwall.Preferably, can be regulated with the variation of raw gas output by the flow of the chilled water of chilled water shower nozzle ejection.Certainly, a plurality of chilled water shower nozzle 70 also can be arranged on identical At The Height (namely being arranged to one deck).
Preferably, vapourizing furnace also comprises de-bubble bar 50, and de-bubble bar 50 is arranged on the inside of annular chamber 60.Especially, a plurality of de-bubble bars 50 are divided into multilayer and are arranged in the annular chamber 60, and de-bubble bar 50 has zigzag structure or spike structure (especially, the spike structure is arranged on the surface of steel bar), arranged crosswise between the adjacent two layers de-bubble bar 50.Can remove the bubble that raw gas produces when rising after the water-bath by de-bubble bar 50.
The shock chamber of the vapourizing furnace in the utility model comprises the larger cavity of superposed volume and is positioned at the pars infundibularis of middle part or bottom, therefore, increased the space of shock chamber's internal upper part circulation, avoided the problem of lime-ash slagging scorification and obstruction, had that vapourizing furnace outlet raw gas dustiness is low, a long service life, the caloic transfer efficiency is fast, simple in structure, cost is low characteristics.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a vapourizing furnace is characterized in that, comprising:
Housing (10) is provided with air outlet (11) on the described housing (10);
Combustion chamber (80), described combustion chamber (80) are arranged in the described housing (10);
Shock chamber (20), described shock chamber (20) are arranged in the described housing (10) and are positioned at the below of described combustion chamber (80); Described shock chamber (20) comprises cavity (21) and pars infundibularis (22); The first end of described cavity (21) is connected with the outlet of described combustion chamber (80), and the second end of described cavity (21) is connected with the entrance of described pars infundibularis (22); Downtake (90), the outlet of described pars infundibularis (22) is connected with the first end of described downtake (90);
Chilled water shower nozzle (70), described chilled water shower nozzle (70) is arranged on the inwall of described cavity (21);
Pulp water pond (30), described pulp water pond (30) are arranged in the described housing (10) and are positioned at the below of described shock chamber (20), and the second end of described downtake (90) inserts below the liquid level in described pulp water pond (30);
Form the annular chamber (60) of sealing between described housing (10) and described shock chamber (20), described annular chamber (60) is connected with described air outlet (11).
2. vapourizing furnace according to claim 1 is characterized in that, the number of described chilled water shower nozzle (70) is a plurality of.
3. vapourizing furnace according to claim 2 is characterized in that, described a plurality of chilled water shower nozzles (70) vertically are divided on the inwall that multilayer is arranged on described cavity (21).
4. vapourizing furnace according to claim 3 is characterized in that, every layer of described chilled water shower nozzle (70) circumferentially is evenly arranged along described cavity (21), and described chilled water shower nozzle (70) arranged crosswise of adjacent two layers.
5. vapourizing furnace according to claim 3, it is characterized in that, the nozzle of the described chilled water shower nozzle of at least one deck in the described chilled water shower nozzle of multilayer (70) (70) is towards the direction setting of the inwall of described cavity (21), and the nozzle of the described chilled water shower nozzle of all the other each layers in the described chilled water shower nozzle of multilayer (70) (70) arranges towards the inside of described shock chamber (20).
6. vapourizing furnace according to claim 2 is characterized in that, described a plurality of chilled water shower nozzles (70) are arranged on identical At The Height.
7. each described vapourizing furnace according to claim 1-6, it is characterized in that, described pars infundibularis (22) comprises the liner of being made by silicon carbide, and the upper end of described downtake (90) is coated with carbide layers, and the length of described carbide layers is 10～100cm.
8. each described vapourizing furnace is characterized in that according to claim 1-6, and described vapourizing furnace also comprises de-bubble bar (50), and described de-bubble bar (50) is arranged on the inside of described annular chamber (60).
9. vapourizing furnace according to claim 8, it is characterized in that, the number of described de-bubble bar (50) is a plurality of, described a plurality of de-bubble bars (50) are divided into multilayer and are arranged in the described annular chamber (60), described de-bubble bar (50) has zigzag structure or spike structure, arranged crosswise between the described de-bubble bar of adjacent two layers (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220134018 CN202688282U (en) | 2012-03-31 | 2012-03-31 | Gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220134018 CN202688282U (en) | 2012-03-31 | 2012-03-31 | Gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688282U true CN202688282U (en) | 2013-01-23 |
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ID=47543929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220134018 Expired - Lifetime CN202688282U (en) | 2012-03-31 | 2012-03-31 | Gasification furnace |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146433A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Gasifier of entrained-flow bed with single nozzle |
| CN105255522A (en) * | 2015-10-15 | 2016-01-20 | 上海锅炉厂有限公司 | Chilling transformation and purification device for high-temperature gasification product and technological method adopting chilling transformation and purification device |
| CN108504392A (en) * | 2018-06-11 | 2018-09-07 | 宁夏神耀科技有限责任公司 | A kind of coal gasification apparatus and technique |
| CN111690437A (en) * | 2020-05-29 | 2020-09-22 | 中国科学院广州能源研究所 | Agriculture and forestry biomass gasification device suitable for easy slagging |
-
2012
- 2012-03-31 CN CN 201220134018 patent/CN202688282U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146433A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Gasifier of entrained-flow bed with single nozzle |
| CN103146433B (en) * | 2013-03-05 | 2014-09-03 | 上海锅炉厂有限公司 | Gasifier of entrained-flow bed with single nozzle |
| CN105255522A (en) * | 2015-10-15 | 2016-01-20 | 上海锅炉厂有限公司 | Chilling transformation and purification device for high-temperature gasification product and technological method adopting chilling transformation and purification device |
| CN105255522B (en) * | 2015-10-15 | 2018-03-20 | 上海锅炉厂有限公司 | High-temperature gasification product Quench converts purifier and its process |
| CN108504392A (en) * | 2018-06-11 | 2018-09-07 | 宁夏神耀科技有限责任公司 | A kind of coal gasification apparatus and technique |
| CN111690437A (en) * | 2020-05-29 | 2020-09-22 | 中国科学院广州能源研究所 | Agriculture and forestry biomass gasification device suitable for easy slagging |
| CN111690437B (en) * | 2020-05-29 | 2021-05-28 | 中国科学院广州能源研究所 | Agriculture and forestry biomass gasification device suitable for easy slagging |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |