CN201334442Y - Plasma coal acetylene black transformation reactor - Google Patents
Plasma coal acetylene black transformation reactor Download PDFInfo
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- CN201334442Y CN201334442Y CNU2008201766342U CN200820176634U CN201334442Y CN 201334442 Y CN201334442 Y CN 201334442Y CN U2008201766342 U CNU2008201766342 U CN U2008201766342U CN 200820176634 U CN200820176634 U CN 200820176634U CN 201334442 Y CN201334442 Y CN 201334442Y
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Abstract
The utility model relates to a plasma coal acetylene black transformation reactor which can prevent carbon from being coked under high temperature. The reactor consists of an upper flange, a lower flange and an inner-layer sleeve, wherein the inner-layer sleeve is positioned between the upper flange and the lower flange; the inner-layer sleeve is externally provided with an outer-layer sleeve, a hollow chamber is formed between the inner-layer sleeve and the outer-layer sleeve; the upper and the lower ends of the inner-layer sleeve and the outer-layer sleeve are connected with the upper flange and the lower flange in a sealing way; the wall of the outer-layer sleeve is provided with an inlet that is arranged along the tangent; the wall of the inner-layer sleeve is provided with tangential entrance holes; and a plurality of tangential entrance holes are uniformly distributed in a square, round or oral matrix arrangement or in a helix arrangement. The reactor solves the coking phenomenon of a plasma schizolysis coal acetylene device, which has the characteristics of simple structure and safe and reliable operation; in addition, the reactor can be widely applied to coal-dust grain-diameter plasma coal acetylene black transformation reactors.
Description
Technical field
The utility model relates to a kind of coal in plasma system acetylene carbon conversion reaction device, especially a kind of coal in plasma system acetylene carbon conversion reaction device of avoiding carbon coking under high-temperature condition.
Background technology
Over nearly 20 years, scientist is just to utilizing hydrogen gas plasma system acetylene technology to carry out a large amount of basic research works on laboratory scale both at home and abroad, obtained abundant achievement in research, the science of the coal plasma pyrolysis system acetylene of this employing hot wall reactor has obtained checking.Advantages such as (calcium carbide routes 70%) that the successes achieved in research show that coal plasma pyrolysis system acetylene technological line has non-environmental-pollution, flow process is short, energy consumption is low, but sidewall of reactor coking key technical problem never is resolved.Present experimental installation from external to domestic various power, the major obstacle that the plasma body matchmaker makes the acetylene unit industrial problems is the sidewall of reactor coking, cause experiment to carry out, though both at home and abroad coking proposes the scheme of many solutions to reactor, all existing does not have the problem verified in the industry.At present, reactor employing commonly used is gone up lower flange and is overlapped the structure that forms cavity with circular reaction, the coking reason mainly is that present reactor substantially all is to adopt resistant to elevated temperatures carbon material to do sidewall of reactor, because the carbon that coal dust reflects and the affinity interaction of sidewall carbon, generate carbon and be deposited on the sidewall easily, thereby cause coking.Tian Yuanyu once pointed out to have proposed to adopt according to reactor wall coking mechanism and the different experimental result of different-grain diameter coal dust coking property the coke cleaning scheme of charging particle diameter bimodal distribution in " chemistry of fuel journal " works of the third phase in 2002.Lv Yongkang, Tian Yuanyu are when investigating particle diameter to the influencing of pyrolysis of coal, experimental analysis the influence of coal particle size to the reactor coking, coking phenomenon does not take place in coal particle size basically that find different coals rank less than 100 orders the time, begin to form coking near 100～120 orders, greater than the serious coking of 140 orders; Be that coking easily takes place fine particle, and coarse particles is difficult for coking.In addition, coal powder size is more little, and transformation efficiency is high more, and cracking is thorough more, and the ratio of acetylene in gas is big relatively more in the product gas.Utilize the high conversion of small particle size coal dust to produce acetylene; Big particle diameter coal dust partial thermal decomposition transforms, residual coal is centrifugal dishing out under the plasma flow effect of high speed rotating, reactor wall formed wash away, the coking phenomenon of coal plasma pyrolysis system acetylene unit can be alleviated or eliminate to the dynamically coking of cleaning reaction wall continuously in time.But because its reactor still adopts resistant to elevated temperatures carbon material in the above-mentioned technology, so all there is the affinity interaction with sidewall carbon in the size of coal particle size no matter, and then coking, still can't fundamentally solve coking problem.
Summary of the invention
The utility model purpose is to provide a kind of simple in structure, safety and stability, the various coal particle sizes of adaptation and avoids the coal in plasma system acetylene carbon conversion reaction device of reactor wall coking.
The essence of existing hot wall reaction technology coking is to have the carbon affinity phenomenon, and the utility model is to adopt fluid film as reaction wall, and both cold wall membrane technique has thoroughly been avoided affinity phenomenon, has fundamentally solved coking problem.
The technical scheme that the utility model technical solution problem adopts is:
A kind of coal in plasma system acetylene carbon conversion reaction device, comprise upper flange and lower flange and the internal layer cover between last lower flange, outer being provided with between outer cover and the ectonexine cover of internal layer cover forms cavity, and outer jacket wall is provided with import, offers on the internal layer jacket wall and tangentially enters the hole.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, its internal layer cover is for circular, and the import that skin puts is along the tangent line setting.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, its internal layer cover be for square, enters the hole and vertical direction has angle.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, two ends and upper flange and lower flange are for being tightly connected about its internal layer cover and the outer cover.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, it is square, circular or oval that its internal layer cover tangentially enters the hole, the hole that tangentially enters that internal layer puts is several also uniform distribution.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, the hole that tangentially enters that its internal layer puts is arranged or helical arrangement.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, its skin puts and is provided with several imports.
Above-mentioned coal in plasma system acetylene carbon conversion reaction device, its internal layer cover forms cavity between several layers and every layer.
Set up outer cover and form fluid cavity outside the internal layer cover because of the utility model, it is inboard that the tangential hole that fluid overlaps by internal layer enters the internal layer cover, at the inboard formation of internal layer cover annular fluid film.When the carbon that comes out when pyroreaction runs into fluid film, will can be adsorbed onto on the internal layer cover sidewall by fluid removal, affinity phenomenon does not take place, avoid the coking of internal layer cover, stop the pyritous diffusion simultaneously, protection internal layer cover strengthens total system stability and security.And simple in structure, cost is low, not limited by particle diameter, certainly can coking yet, can be widely used in pyrocarbon reaction field.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the structural representation of the utility model embodiment 3.
Among Fig. 1-3,1 is upper flange, and 2 is outer cover, and 3 is the internal layer cover, and 4 is tangential admission port, and 5 are import, and 6 is lower flange.
Embodiment
With reference to accompanying drawing 1-2, embodiment 1 comprises upper flange 1 and lower flange 6 and the cover of the internal layer between last lower flange 3, outer being provided with between outer cover 2 of one deck and the ectonexine cover of internal layer cover forms cavity, two ends and upper flange and lower flange are for being tightly connected about the internal layer cover, outer jacket wall is provided with an import 5 that is provided with along tangent line, offers the evenly distributed square hole 4 that tangentially enters of some spirals on the internal layer jacket wall.
With reference to accompanying drawing 3, embodiment 2 difference from Example 1 are that import is two, and the internal layer cover is to form cavity between 2 layers and every layer; Tangential admission port is oval; Tangential admission port is according to arranged.
With reference to Fig. 4, embodiment 3 is the internal layer cover for square with the difference of embodiment 1, and enters the hole and there is angle in vertical direction.
Principle of work: fluid enters by upper flange 1, lower flange 6 and outer cover 2, internal layer cover 3 fluid cavitys that form by import 5; it is inboard that the tangential hole that puts by internal layer enters the internal layer cover then; it is reactor wall; regulate hydrodynamicpressure and flow; under the effect of tangential hole; fluid can form fluid film at reactor wall, thereby reaches the effect that stops carbon coking and protective side wall.
In the foregoing description, the internal layer cover is several layers, and tangential admission port is a rectangle, rhombus, and Polygons all can be selected according to actual needs.
Claims (8)
1, a kind of coal in plasma system acetylene carbon conversion reaction device, comprise upper flange and lower flange and the internal layer cover between last lower flange, it is characterized in that outer being provided with between outer cover and the ectonexine cover of internal layer cover forms cavity, outer jacket wall is provided with import, offers on the internal layer jacket wall and tangentially enters the hole.
2, coal in plasma system acetylene carbon conversion reaction device according to claim 1 is characterized in that the internal layer cover for circular, and the import that skin puts is along the tangent line setting.
3, coal in plasma system acetylene carbon conversion reaction device according to claim 1 is characterized in that internal layer cover for square, enters the hole and vertical direction has angle.
4, according to claim 1,2 or 3 described coal in plasma system acetylene carbon conversion reaction devices, it is characterized in that internal layer cover and outer cover up and down two ends and upper flange and lower flange for being tightly connected.
5, coal in plasma system acetylene carbon conversion reaction device according to claim 4 is characterized in that it is square, circular or oval that the internal layer cover tangentially enters the hole, and the hole that tangentially enters that internal layer puts is several also uniform distribution.
6, coal in plasma system acetylene carbon conversion reaction device according to claim 5 is characterized in that the hole that tangentially enters that internal layer puts is arranged or helical arrangement.
7, coal in plasma system acetylene carbon conversion reaction device according to claim 6 is characterized in that skin puts to be provided with several imports.
8, coal in plasma system acetylene carbon conversion reaction device according to claim 7 is characterized in that internal layer cover forms cavity between several layers and every layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201766342U CN201334442Y (en) | 2008-11-05 | 2008-11-05 | Plasma coal acetylene black transformation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201766342U CN201334442Y (en) | 2008-11-05 | 2008-11-05 | Plasma coal acetylene black transformation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334442Y true CN201334442Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201766342U Expired - Fee Related CN201334442Y (en) | 2008-11-05 | 2008-11-05 | Plasma coal acetylene black transformation reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949972A (en) * | 2011-08-26 | 2013-03-06 | 北京低碳清洁能源研究所 | Multi-stage plasma cracking carbonaceous material reactor and method for producing acetylene by using same |
| CN104451762A (en) * | 2014-12-17 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Device for preparing acetylene through pulverized coal pyrolysis by electric arc |
| CN105272814A (en) * | 2014-07-04 | 2016-01-27 | 神华集团有限责任公司 | Quenching device and acetylene preparation device |
-
2008
- 2008-11-05 CN CNU2008201766342U patent/CN201334442Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949972A (en) * | 2011-08-26 | 2013-03-06 | 北京低碳清洁能源研究所 | Multi-stage plasma cracking carbonaceous material reactor and method for producing acetylene by using same |
| CN102949972B (en) * | 2011-08-26 | 2014-05-28 | 北京低碳清洁能源研究所 | Multi-stage plasma cracking carbonaceous material reactor and method for producing acetylene by using same |
| CN105272814A (en) * | 2014-07-04 | 2016-01-27 | 神华集团有限责任公司 | Quenching device and acetylene preparation device |
| CN105272814B (en) * | 2014-07-04 | 2017-05-31 | 神华集团有限责任公司 | Quencher and the device for preparing acetylene |
| CN104451762A (en) * | 2014-12-17 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Device for preparing acetylene through pulverized coal pyrolysis by electric arc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20171105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |