CN201704232U - Quenching device applied to plasma coal cracking process - Google Patents
Quenching device applied to plasma coal cracking process Download PDFInfo
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- CN201704232U CN201704232U CN2010201873464U CN201020187346U CN201704232U CN 201704232 U CN201704232 U CN 201704232U CN 2010201873464 U CN2010201873464 U CN 2010201873464U CN 201020187346 U CN201020187346 U CN 201020187346U CN 201704232 U CN201704232 U CN 201704232U
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- atomisation unit
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Abstract
The utility model discloses a quenching device applied to a plasma coal cracking process. The quenching device comprises a cracked gas inlet, a quencher body, a quencher inner core, a quencher inner core strut, a quenching device barrel body, a quencher inner core atomizing device, a quencher body atomizing device, a cracked gas outlet, a quenching medium inlet pipe, a quenching medium passage, a quenching gas inlet pipe and a quenching gas passage. The quenching device is annular, the inner wall of the quencher body and the quencher inner core are both conical to form an annular passage, the top end of the inner core is sealed, cracked gas can only pass through the annular passage, the quencher inner core and the quencher body are respectively provided with quenching medium atomizing devices, and the atomizing device can adopt a single-medium spray nozzle, a double-medium spray nozzle or integral atomizing device. The quenching device well resolves the problem that acetylene yield is reduced and amplification effect is insignificant because quenching medium can not reach a center area of the cracked gas during a plasma coal cracking and quenching process.
Description
Technical field
The utility model belongs to the chemical industry equipment field, particularly a kind of quenching device that is applied to the coal plasma pyrolysis process.
Background technology
Acetylene is a kind of very important basic Organic Chemicals.The production technique of acetylene mainly contains at present: calcium carbide route, gas by partial oxidation of natural method etc.The calcium carbide route technical maturity is reliable, and raw material is easy to get, and technical threshold is low.But there are problems such as power consumption is high, contaminate environment is serious in calcium carbide route.Pollute though gas by partial oxidation of natural method technology is low, technical sophistication, resource is few, cost of investment is high.Present domestic acetylene is still based on calcium carbide route.Coal plasma pyrolysis system acetylene technology has flow process weak point, low consumption of resources, advantages of environment protection, is the effective way that coal directly transforms, and has good development prospect.
Coal plasma pyrolysis system acetylene technology is that coal is sprayed into temperature is in 3500～22000 ℃ the plasma body, through Millisecond reaction back generation product acetylene etc.And acetylene is at high temperature unstable, and above-mentioned reaction product must be in Millisecond below the quenching to 250 ℃, otherwise will make reaction product decomposes such as acetylene, reduces its productive rate.Quencher is the visual plant in the coal plasma pyrolysis technology, to the requirement of quencher be fast, evenly, the quenching medium consumption is low.As if the skewness of quenching medium in quencher, not only can reduce the efficient of quenching medium, cause the waste of quenching medium; Also can in quencher, form the localized hyperthermia district, make part splitting gas quenching effectively, reduce the yield of acetylene.For quenching medium is fully contacted with splitting gas, improve quenching efficient, must make the quenching medium atomizing.For coal plasma pyrolysis system acetylene technology, the flow velocity that enters splitting gas in the quencher is up to 100-300m/s, spray into speed much larger than the quenching medium drop, it is very short that quenching medium drop after the atomizing can pass the distance of splitting gas, be difficult to spray into the splitting gas central zone, part acetylene is at high temperature decomposed, and yield reduces.And along with the increase of unit scale, this problem is more and more serious.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of quenching device that is applied to the coal plasma pyrolysis process is provided.
The quenching device that is applied to the coal plasma pyrolysis process comprises pipe, cavity in splitting gas inlet, quencher body, quencher inner core, quenching device cylindrical shell, quencher inner core pillar, quencher inner core atomisation unit, quencher body atomisation unit, splitting gas outlet, body quenching medium inlet tube, inner core quenching medium inlet tube, the first quenching medium passage, the second quenching medium passage, annular space, the pillar; Quenching device cylindrical shell upper end is provided with the quencher body, be provided with quencher inner core pillar in the quenching device cylindrical shell, be provided with annular space in the quencher inner core pillar, quencher inner core pillar lower end is arranged with two inner core quenching medium inlet tubes, and communicate with annular space, quencher inner core pillar upper end is provided with the quencher inner core, the quencher inner core is a cone, the quencher inner core top and the conical surface are provided with quencher inner core atomisation unit, in-core is provided with the second quenching medium passage in the quencher, and communicate with the quenching medium passage, the quencher body comprises the splitting gas inlet, quencher body atomisation unit, body quenching medium inlet tube, the first quenching medium passage, quencher body upper end is provided with the splitting gas inlet, and the quencher inner body wall is taper, and and the quencher inner core between form a circular channel, the quencher inner body wall is provided with atomisation unit, is provided with the first quenching medium passage in the quencher body, and communicates with atomisation unit, quencher body outer wall is arranged with two basic body quenching medium inlet tubes, and communicates with the first quenching medium passage.
Described quencher body also comprises quenching gas inlet pipe and quenching gas passage, is provided with quenching gas passage in the quenching medium passage outside, and quencher body outer wall is arranged with two quenching gas inlet pipes, and quenching gas passage links to each other with quenching gas inlet pipe; Described cavity communicates with quencher inner core atomisation unit.
Described quencher inner core atomisation unit, quencher body atomisation unit are single medium atomization nozzle, two medium atomization nozzle or integrated form atomisation unit.
Described integrated form atomisation unit comprises atomisation unit outer wall, atomisation unit inwall, airway, annular space, slit, contraction section, mixing portion, expanded bore; Airway one end is installed on the atomisation unit outer wall, and be communicated with the quenching gas passage, the airway the other end stretches in the perforate of atomisation unit inwall, and form annular space, slit and mix portion with the atomisation unit inwall, the airway front end has contraction section, atomisation unit inwall front end has expanded bore, and body quenching medium passage links to each other with annular space.
Described nozzle or integrated form atomisation unit are one or more layers layout, arrange 2 with upper spray nozzle or integrated form atomisation unit jet hole for every layer.
The base angle of described quencher body conical inboard wall is the 30-80 degree.
The cone base angle β of described quencher inner core is the 30-80 degree.
The cone angle γ of described quencher inner core atomisation unit quenching medium export center axle and quencher inner core is the 40-120 degree.
The quenching medium export center axle of described quencher body atomisation unit and quencher body conical inboard wall angle theta are the 25-90 degree.
The beneficial effect that the utility model compared with prior art has:
1, for coal plasma pyrolysis system acetylene technology, the flow velocity that enters splitting gas in the quencher is up to 100-300m/s, spray into speed much larger than the quenching medium drop, it is very short that quenching medium drop after the atomizing can pass the distance of splitting gas, be difficult to arrive the splitting gas central zone, part acetylene is at high temperature decomposed, and yield reduces.And along with the increase of unit scale, this problem is more and more serious.The utility model is an annular space formula structure, and quenching medium sprays into from the atomisation unit that is installed on quencher body and the inner core respectively, has solved this problem preferably, has improved the yield of acetylene.
2, solved the problem of the amplification of quencher preferably.The utility model adopts the design of annular space formula, when the treatment capacity of device increases, can keep the width of circular channel between quencher body and the inner core constant, by correspondingly increasing external diameter in the annular, increases the circulation area of quencher.The quenching medium drop still can run through splitting gas like this, contacts fully with splitting gas, improves quenching efficient, and scale effect is less.
3, at quencher inner core top the quenching medium atomisation unit is housed, this device not only plays the effect of quenching splitting gas, and the cleaved gas of quenching medium is flushed on the quencher inner core, to dirty, can prevent that the quencher inner core from being burnt out along wall.
4, the quenching medium quenching medium passage in quencher body, quencher inner core and the inner core pillar of flowing through, the heat of removable quencher plays the effect that reduces the quencher temperature, prevents that quencher Yin Wendu is too high and burns out.
5, this invention both had been applicable to single medium quenching, also was applicable to two medium quenchings.
Description of drawings
Fig. 1 is the structural representation of the utility model when adopting single medium nozzle.
Structural representation when Fig. 2 is the utility model employing dual-medium nozzle
Structural representation when Fig. 3 is the utility model quencher body employing integrated form atomisation unit
Fig. 4 is the structural representation of integrated form atomisation unit.
Among the figure, pipe 15, quenching gas passage 16, cavity 17, atomisation unit outer wall 18, atomisation unit inwall 19, airway 20, annular space 21, slit 22, contraction section 23, mixing portion 24, expanded bore 25 in splitting gas inlet 1, quencher body 2, quencher inner core 3, quenching device cylindrical shell 4, quencher inner core pillar 5, quencher inner core atomisation unit 6, quencher body atomisation unit 7, splitting gas outlet 8, quenching medium inlet tube 9 and 10, quenching medium passage 11 and 12, annular space 13, quenching gas inlet pipe 14, the pillar.
Embodiment
Shown in Fig. 1～3, the quenching device that is applied to the coal plasma pyrolysis process comprises pipe 15, cavity 17 in splitting gas inlet 1, quencher body 2, quencher inner core 3, quenching device cylindrical shell 4, quencher inner core pillar 5, quencher inner core atomisation unit 6, quencher body atomisation unit 7, splitting gas outlet 8, quenching medium inlet tube 9 and 10, quenching medium passage 11 and 12, annular space 13, the pillar; Quenching device cylindrical shell 4 upper ends are provided with quencher body 2, be provided with quencher inner core pillar 5 in the quenching device cylindrical shell 4, be provided with annular space 13 in the quencher inner core pillar 5, quencher inner core pillar 5 lower ends are arranged with two quenching medium inlet tubes 10, and communicate with annular space 13, quencher inner core pillar 5 upper ends are provided with quencher inner core 3, quencher inner core 3 is a cone, quencher inner core 3 tops and the conical surface are provided with quencher inner core atomisation unit 6, be provided with quenching medium passage 12 in the quencher inner core 3, and communicate with quenching medium passage 13, quencher body 2 comprises splitting gas inlet 1, quencher body atomisation unit 7, quenching medium inlet tube 9, quenching medium passage 11, quencher body 2 upper ends are provided with splitting gas inlet 1, quencher body 2 inwalls are taper, and and quencher inner core 3 between form a circular channel, quencher body 2 inwalls are provided with atomisation unit 7, be provided with quenching medium passage 11 in the quencher body 2, and communicate with atomisation unit 7, quencher body 2 outer walls are arranged with two quenching medium inlet tubes 9, and communicate with quenching medium passage 11.The base angle of quencher body 2 conical inboard walls is the 30-80 degree.The cone base angle β of quencher inner core 3 is the 30-80 degree.The cone angle γ of the quenching medium export center axle of quencher inner core atomisation unit 6 and quencher inner core 3 is the 40-120 degree.The quenching medium export center axle of quencher body atomisation unit 7 and quencher body 2 conical inboard wall angle theta are the 25-90 degree.Described quencher inner core atomisation unit 6, quencher body atomisation unit 7 are single medium atomization nozzle, two medium atomization nozzle or integrated form atomisation unit.
Described quencher body 2 also comprises quenching gas inlet pipe 14 and quenching gas passage 16 when adopting dual-medium nozzle or integrated form atomisation unit, be provided with quenching gas passage 16 in quenching medium passage 11 outsides, quencher body 2 outer walls are arranged with two quenching gas inlet pipes 14, and quenching gas passage 16 links to each other with quenching gas inlet pipe 14; Described cavity 17 communicates with quencher inner core atomisation unit 6.Described nozzle or integrated form atomisation unit are one or more layers layout, arrange 2 with upper spray nozzle or integrated form atomisation unit jet hole for every layer.
As shown in Figure 4, described integrated form atomisation unit comprises atomisation unit outer wall 18, atomisation unit inwall 19, airway 20, annular space 21, slit 22, contraction section 23, mixing portion 24, expanded bore 25; Airway 20 1 ends are installed on the atomisation unit outer wall 18, and be communicated with quenching gas passage 16, airway 20 the other ends stretch in the perforate of atomisation unit inwall 19, and form annular space 21, slits 22 and mix portion 24 with atomisation unit inwall 19, airway 20 front ends have contraction section 23, atomisation unit inwall 19 front ends have expanded bore 25, and quenching medium passage 11 links to each other with annular space 21.
Working process of the present utility model is as follows:
When the utility model adopted dual-medium nozzle: the temperature of cracking gas that coal plasma pyrolysis generates was higher than 1500 ℃, entered quenching device from splitting gas inlet 1.Quenching medium is divided into two-way, and a route quenching medium inlet tube 9 enters in the quencher body 2, enters nozzle through passage 11, sprays into after the atomizing in the splitting gas; Another route is entered in the annular space 13 in the quencher inner core pillar by quenching medium inlet tube 10, and the passage 12 in the quencher inner core enters nozzle, sprays into after the atomizing in the splitting gas; Quenching medium inlet tube 9 and 10 is respectively symmetric two, can make quenching medium enter each nozzle more equably.Quenching medium fully contacts with splitting gas, in the Millisecond with splitting gas below quenching to 250 more than 1500 ℃ ℃, the quenching medium of splitting gas behind the quenching and not vaporization is discharged from exporting 8.
When the utility model adopted dual-medium nozzle: the temperature of cracking gas that coal plasma pyrolysis generates was higher than 1500 ℃, entered quenching device from splitting gas inlet 1.Quenching medium is divided into two-way, and a route quenching medium inlet tube 9 enters in the quencher body 2, enters nozzle through passage 11; One route is entered in the annular space 13 in the quencher inner core pillar by quenching medium inlet tube 10, and the passage 12 in the quencher inner core enters nozzle.Quenching gas is divided into two-way, and a route quenching gas inlet pipe 14 enters dual-medium nozzle through the intrinsic quenching gas of quencher passage 16, sprays in the splitting gas with quenching medium; Pipe 15 enters through cavity 17 and to be installed in the quencher inner core dual-medium nozzle in the one route pillar 5, spray in the splitting gas with quenching medium, in the Millisecond with splitting gas below quenching to 250 more than 1500 ℃ ℃, the splitting gas behind the quenching is discharged from exporting 8.Adopt two medium atomization nozzles, the quenching medium atomizing effect is good, can more effectively fully contact with splitting gas, improves quenching speed, reduces the decomposition loss of acetylene.Simultaneously because the quenching medium high atomisation, can control it is evaporated fully, be convenient to by regulating temperature of cracking gas behind the quenching medium flow control quenching.
The atomizing principles of integrated form atomisation unit is similar to dual-medium nozzle, its working process is: quenching medium is entered in the passage 11 in the quencher body 2 by quenching medium inlet tube 9, enters the portion of mixing 24 through integrated form atomisation unit inwall 19 with annular space 21, slit 22 between the airway 20; Quenching gas is entered in the quencher body 2 by quenching gas inlet pipe 14, enters in the airway 20 through quenching gas passage 16, through contraction section 23, enters mixing portion 24 after being accelerated, and mixes with quenching medium, sprays in the splitting gas through expansion segment 25, forms atomizing.The quenching medium of high atomisation fully contacts with splitting gas, in Millisecond with splitting gas below quenching to 250 more than 1500 ℃ ℃, the splitting gas behind the quenching is discharged from exporting 8.Adopt the integrated form atomisation unit, quenching medium is atomized to heavens, can also in the quencher of identical size, arrange more quenching medium ejiction opening, quenching medium being more evenly distributed in quencher like this, more abundant with contacting of splitting gas, the quenching better effects if, thus the yield of acetylene can be improved.
In the coal plasma pyrolysis process, the flow velocity that enters splitting gas in the quencher is up to 100-300m/s, the speed that sprays into of quenching medium drop after the atomizing, it is very short that quenching medium can pass the distance of splitting gas, major part just flows out the quenching section with splitting gas on the quencher limit, can't arrive the splitting gas central zone, cause a part of splitting gas not obtain quenching effectively, the acetylene yield reduces.And along with the increase of unit scale, this problem is more and more serious.The utility model is an annular space formula structure, the inwall of quencher body 2 and quencher inner core 3 are taper, constitute a circular channel, and inner core 3 end sealings, splitting gas can only flow through from this circular channel, quenching medium sprays into from the atomisation unit that is installed on quencher body 2 and the quencher inner core 3 respectively, has solved this problem preferably, has improved the yield of acetylene.When the treatment capacity of device increases, can keep annular width of channel constant, by correspondingly increasing external diameter in the annular, increase the circulation area of quencher.The quenching medium drop still can run through splitting gas like this, contacts fully with splitting gas, improves quenching efficient, and therefore scale effect of the present utility model is less.
Claims (9)
1. a quenching device that is applied to the coal plasma pyrolysis process is characterized in that comprising pipe (15), cavity (17) in splitting gas inlet (1), quencher body (2), quencher inner core (3), quenching device cylindrical shell (4), quencher inner core pillar (5), quencher inner core atomisation unit (6), quencher body atomisation unit (7), splitting gas outlet (8), body quenching medium inlet tube (9), inner core quenching medium inlet tube (10), the first quenching medium passage (11), the second quenching medium passage (12), annular space (13), the pillar; Quenching device cylindrical shell (4) upper end is provided with quencher body (2), be provided with quencher inner core pillar (5) in the quenching device cylindrical shell (4), be provided with annular space (13) in the quencher inner core pillar (5), quencher inner core pillar (5) lower end is arranged with two inner core quenching medium inlet tubes (10), and communicate with annular space (13), quencher inner core pillar (5) upper end is provided with quencher inner core (3), quencher inner core (3) is a cone, quencher inner core (3) top and the conical surface are provided with quencher inner core atomisation unit (6), be provided with the second quenching medium passage (12) in the quencher inner core (3), and communicate with annular space (13), quencher body (2) comprises splitting gas inlet (1), quencher body atomisation unit (7), body quenching medium inlet tube (9), the first quenching medium passage (11), quencher body (2) upper end is provided with splitting gas inlet (1), quencher body (2) inwall is taper, and and quencher inner core (3) between form a circular channel, quencher body (2) inwall is provided with atomisation unit (7), be provided with the first quenching medium passage (11) in the quencher body (2), and communicate with atomisation unit (7), quencher body (2) outer wall is arranged with two basic body quenching medium inlet tubes (9), and communicates with the first quenching medium passage (11).
2. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1, it is characterized in that described quencher body (2) also comprises quenching gas inlet pipe (14) and quenching gas passage (16), be provided with quenching gas passage (16) in the first quenching medium passage (11) outside, quencher body (2) outer wall is arranged with two quenching gas inlet pipes (14), and quenching gas passage (16) links to each other with quenching gas inlet pipe (14); Described cavity (17) communicates with quencher inner core atomisation unit (6).
3. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1 is characterized in that described quencher inner core atomisation unit (6), quencher body atomisation unit (7) are single medium atomization nozzle, two medium atomization nozzle or integrated form atomisation unit.
4. according to the described a kind of quenching device that is applied to the coal plasma pyrolysis process of claim 3, it is characterized in that described integrated form atomisation unit comprises atomisation unit outer wall (18), atomisation unit inwall (19), airway (20), annular space (21), slit (22), contraction section (23), mixing portion (24), expanded bore (25); Airway (20) one ends are installed on the atomisation unit outer wall (18), and be communicated with quenching gas passage (16), airway (20) the other end stretches in the perforate of atomisation unit inwall (19), and form annular space (21), slit (22) and mix portion (24) with atomisation unit inwall (19), airway (20) front end has contraction section (23), atomisation unit inwall (19) front end has expanded bore (25), and the first quenching medium passage (11) links to each other with annular space (21).
5. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 3 is characterized in that described nozzle or integrated form atomisation unit are one or more layers layout, arranges 2 with upper spray nozzle or integrated form atomisation unit jet hole for every layer.
6. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1 is characterized in that the base angle of described quencher body (2) conical inboard wall is the 30-80 degree.
7. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1 is characterized in that the cone base angle β of described quencher inner core (3) is the 30-80 degree.
8. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1 is characterized in that the cone angle γ of described quencher inner core atomisation unit (6) quenching medium export center axle and quencher inner core (3) is the 40-120 degree.
9. a kind of quenching device that is applied to the coal plasma pyrolysis process according to claim 1 is characterized in that described quencher body atomisation unit (7) quenching medium export center axle and quencher body (2) conical inboard wall angle theta are the 25-90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201873464U CN201704232U (en) | 2010-05-11 | 2010-05-11 | Quenching device applied to plasma coal cracking process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201873464U CN201704232U (en) | 2010-05-11 | 2010-05-11 | Quenching device applied to plasma coal cracking process |
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| CN201704232U true CN201704232U (en) | 2011-01-12 |
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| CN2010201873464U Expired - Fee Related CN201704232U (en) | 2010-05-11 | 2010-05-11 | Quenching device applied to plasma coal cracking process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823935A (en) * | 2010-05-11 | 2010-09-08 | 浙江大学 | Quenching system applied to process of cracking coal by using plasma |
| CN108489298A (en) * | 2018-04-19 | 2018-09-04 | 浙江大学 | The plasma coal pyrolysis quenching device of included boron nitride coating protection anti-wear cover |
| CN108484344A (en) * | 2018-04-19 | 2018-09-04 | 浙江大学 | A kind of plasma coal pyrolysis quenching device from band coating protection anti-wear cover |
-
2010
- 2010-05-11 CN CN2010201873464U patent/CN201704232U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823935A (en) * | 2010-05-11 | 2010-09-08 | 浙江大学 | Quenching system applied to process of cracking coal by using plasma |
| CN101823935B (en) * | 2010-05-11 | 2013-07-31 | 浙江大学 | Quenching system applied to process of cracking coal by using plasma |
| CN108489298A (en) * | 2018-04-19 | 2018-09-04 | 浙江大学 | The plasma coal pyrolysis quenching device of included boron nitride coating protection anti-wear cover |
| CN108484344A (en) * | 2018-04-19 | 2018-09-04 | 浙江大学 | A kind of plasma coal pyrolysis quenching device from band coating protection anti-wear cover |
| CN108484344B (en) * | 2018-04-19 | 2020-05-26 | 浙江大学 | Plasma pyrolysis coal quenching device with coating protection anti-abrasion cover |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20110511 |