CN204251570U - A kind of efficient chilling device - Google Patents
A kind of efficient chilling device Download PDFInfo
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- CN204251570U CN204251570U CN201420697310.9U CN201420697310U CN204251570U CN 204251570 U CN204251570 U CN 204251570U CN 201420697310 U CN201420697310 U CN 201420697310U CN 204251570 U CN204251570 U CN 204251570U
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Abstract
A kind of efficient chilling device, the synthetic gas overcoming the existence of existing chilling device goes out the problems such as shock chamber's band water, synthetic gas ash content water-gas ratio that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns.The utility model solves the technical scheme that its technical problem adopts: comprise housing, chilling ring, downtake; efficient chilling device is followed successively by chilling ring, downtake, downtake protector, round trip overflow wet cyclone and bouffancy plate from top to bottom; chilling ring is connected with cinder notch; downtake top is communicated with cinder notch; downtake protector is arranged on downtake outer wall, and round trip overflow wet cyclone and bouffancy plate are connected between inner walls and downtake outer wall from top to bottom.The downtake middle and upper part that is more easily washed of the utility model available protecting; ensure that the efficient chill effect of chilling device and the work-ing life of downtake; simultaneously; add the foam removal area of shock chamber; breaking and gas-liquid separation of the fine foam of carrying secretly in synthetic gas; reduce the probability of synthesis band of gas ash band water, add the dust removing effects of synthetic gas, ensure that gasification installation long-period stable operation.
Description
Technical field
The present invention relates to the efficient chilling device that the gasification installation of a kind of single nozzle or multi-nozzle slurry/dry pulverized coal charging uses.
Background technology
After 20 century 70s occur world oil crisis mid-term, clean coal technology research, development and application become the strategic research emphasis of national governments' strategy of sustainable development and energy security.Coal Gasification Technology is important channel and the means of clean utilization coal resources.Gasification of coal, namely utilizes vaporized chemical (O under certain temperature, pressure condition
2, H
2o or CO
2) generate Clean synthesis gas (CO, H with coal reaction
2mixture), being an important method of coal being carried out to chemical process, is the gordian technique realizing coal-cleaning utilization.Clean synthesis gas can as town gas, fuel for power generation gas, also can be used for production chemical product (as synthetic ammonia, methyl alcohol etc.) and cleaner engines fuel (as hydrogen, gasoline, diesel oil, ether, alcohol ate etc.).
Entrained flow bed gasification technology is one of efficient, the most clean present coal utilization technology, represent the development trend of Coal Gasification Technology, entrained flow bed gasification technology is divided into coal water slurry and fine coal two kinds of modes according to the difference of feed state, coal water slurry charging take Texaco gasifier as representative, dry pulverized coal charging with Shell vapourizing furnace for representative.The shock chamber of vapourizing furnace is the important component part of vapourizing furnace, the heat and mass transfer process of inside, vapourizing furnace shock chamber is rapidly complicated, be one of key link in gasifying process operating process, control badly to there will be the problems such as synthesis band of gas water, synthetic gas ash content water-gas ratio that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns.Texaco gasifier shock chamber is made up of chilling ring, downtake and upcast, and between combustion chamber and shock chamber, passage is cinder notch, and be chilling ring below cinder notch, chilling ring coupled underneath downtake, and the lower end of downtake is deep into below the normal level of shock chamber.The outside of downtake is upcast, and upcast is coaxial with downtake, and a traverse baffle playing baffling effect is arranged at the top of upcast, and traverse baffle is umbrella-shaped baffle obliquely, is fixed at the bottom of the cone of combustion chamber.First synthetic gas rises along upcast after leaving the liquid level of shock chamber, and after rising to the top of upcast, the effect that synthetic gas can be subject to traverse baffle changes direction, first downward baffling, then to rising, leaves shock chamber from the syngas outlet of shock chamber.Bubble due to synthetic gas has larger energy, so can carry large quantity of fluid secretly when the water surface of the bubble effusion shock chamber of synthetic gas, causes the problem that the water-gas ratio of synthetic gas is defective, inside liquid level maintenance in shock chamber's does not live.The internal circulating load in Heisui River in shock chamber is up to 2050m to have data to show
3/ h, this is about as much as 2O times that enters shock chamber's make up water, is finally taken out of the Heisui River amount of shock chamber also up to 40m
3/ h.While synthesis gas carrying liquid, in water, micron-sized thin ash is also taken away shock chamber, causes the problem that synthetic gas ash content is high.
From the vapourizing furnace cinder notch high-temperature synthesis gas of 1300 DEG C out the process declined along downtake, between the Quench moisture film that the synthetic gas of high temperature, flying dust, molten ash and downtake inwall are covered with, there is heat and mass transfer process complicated rapidly.The temperature of high-temperature synthesis gas, flying dust, molten ash reduces rapidly, and the temperature of Quench moisture film raises rapidly, and has partial-chilled water promptly evaporated under high temperature heat radiation and enter into synthetic gas.The unusual complexity of the heat and mass that gas in downtake, solid, liquid three are alternate and flow process and rapidly, result of study according to multidimensional simulation shows, the variable gradient that the synthetic gas of high temperature declines to synthetic gas temperature in the scope of lower 0.8m after leaving cinder notch is maximum, heat exchange duty amount between synthetic gas and chilled water is maximum, the thermal stresses that this region downtake bears is also maximum, is thus easier to downtake crackle, bulge occur, is out of shape even burning hole at this section ratio.The fact also proves that the probability of 0.4 ~ 0.8m section generation problem below the cinder notch of combustion chamber is higher simultaneously; reason is that the thermal stresses that this section downtake of one side bears is larger; the steam output of chilled water is larger on the other hand; the protection liquid film of downtake inwall is relatively thin; temperature is also higher, easily goes wrong so compare.
The object of the invention is to overcome the deficiencies in the prior art, solve synthetic gas and go out the problems such as shock chamber's band water, synthetic gas ash content water-gas ratio that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns, ensure the washing effect of high-temperature crude synthesis gas and slag, extend the work-ing life of chilling device downtake, realize the steady running of gasification installation, a kind of efficient chilling device of invention replaces existing chilling device.
Summary of the invention
The synthetic gas existed to overcome existing chilling device goes out the problems such as shock chamber's band water, synthetic gas ash content water/gas that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns, the efficient chilling device that the gasification installation that the invention provides a kind of single nozzle or multi-nozzle slurry/dry pulverized coal charging uses.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of efficient chilling device; comprise housing, chilling ring, downtake; efficient chilling device is followed successively by chilling ring, downtake, downtake protector, round trip overflow wet cyclone, bouffancy plate from top to bottom; chilling ring is connected with cinder notch; downtake top is communicated with cinder notch; downtake protector is arranged on downtake outer wall, and round trip overflow wet cyclone, bouffancy plate are connected between inner walls and downtake outer wall from top to bottom.
According to described efficient chilling device; described downtake protector is hollow structure; inside arranges flow deflector; flow deflector is snakelike spiraling up around downtake; be highly 1m; be fixed on the outer wall of distance cinder notch 0.3 ~ 0.7m downtake, the water inlet of downtake protector is connected with outside water equipment, and downtake protector water outlet is connected with the cooling fluid transfer lime of chilling ring.
According to described efficient chilling device, described round trip overflow wet cyclone is made up of interior journey spinning liquid plate, outer journey spinning liquid plate and Overflow Cone, angle between spinning liquid plate blade and horizontal direction is 20 ~ 50 °, the outer journey spinning liquid plate number of blade is 2 times of interior journey spinning liquid plate, outer journey spinning liquid board diameter is 1.36 times of interior journey spinning liquid plate, and outer journey spinning liquid plate height is 0.5 times of interior journey spinning liquid plate, and the Overflow Cone number of blade is identical with interior journey spinning liquid plate, blade guide angle 30 ~ 60 °, overflow cone angle 2 θ=50 ~ 70 °.
According to described efficient chilling device, described bouffancy plate comprises excircle board, interior plectane, covers pressing plate and middle layer, be connected with between excircle board, interior plectane and multiplely cover pressing plate, adjacent covers the middle layer being connected with between pressing plate and being parallel to each other, and bouffancy plate is fixed between downtake outer wall and housing.
According to described efficient chilling device, heat-resisting, the anti-oxidant and corrosion resistant austenitic chromium nickel stainless steel 310s material of described downtake material selection.
According to the application of described efficient chilling device, described efficient chilling device is a part for the gasification installation of single nozzle or multi-nozzle slurry/dry pulverized coal charging.
Advantageous effect of the present invention is: the present invention effectively can extend the heat exchange action time of Quench liquid on downtake inwall, and to suppressing the fracture generation effect of downtake inwall moisture film, extending the heat exchange of Quench liquid on downtake inwall makes heat transfer be strengthened action time, downtake material selection austenitic chromium nickel stainless steel 310s material, reduces the cost of chilling device simultaneously; The use of downtake protector protects the downtake middle and upper part be more easily washed, and ensure that the efficient chill effect of chilling device and the work-ing life of downtake, ensure that gasification installation long-period stable operation; Bouffancy plate adopts the structure of bouffancy to add actual foam removal area, saves installing space, reduces whole apparatus cost; Two-layer round trip overflow wet cyclone is entered by the synthetic gas of bouffancy plate, round trip overflow wet cyclone divides interior journey spinning liquid plate and outer journey spinning liquid plate, the outer journey number of blade doubles than interior journey, spacing reduces, perforate uniformity coefficient improves, be beneficial to breaking and gas-liquid separation of the fine foam of carrying secretly in synthetic gas, reduce the probability of synthesis band of gas ash band water, increase the dust removing effects of synthetic gas.
Accompanying drawing explanation
Fig. 1 is efficient chilling device structure iron of the present invention.
Fig. 2 is chilling ring structural representation.
Fig. 3 is chilling ring vertical view.
Fig. 4 is downtake protector structure schematic diagram.
Fig. 5 is round trip overflow wet cyclone vertical view.
Fig. 6 is round trip overflow wet cyclone broken section enlarged view.
Fig. 7 is bouffancy plate vertical view.
In figure: 1. housing; 2. chilling ring; 201. pushing off the slag nails; 202. outer lip rings; 203. epipharynx rings; 204. Quench liquid distributing chamber; 205. dredging silk holes; 206. cooling fluid transfer limes; 207. Quench pendular ring gaps; 208. Quench liquid mouth sprays; 209. slag blocking ring; 210. Quench liquid passing hole; 3. downtake; 4. bouffancy plate; 401. excircle board; Plectane in 402.; 403. cover pressing plate; 404. middle layer; 5. cinder notch; 6. round trip overflow wet cyclone; Journey spinning liquid plate in 601.; 602. outer journey spinning liquid plates; 603. Overflow Cone; 7. downtake protector; 701. flow deflector; 702. downtake protector water inlets; 703. downtake protector water outlets.
Embodiment
Embodiment
A kind of efficient chilling device, efficient chilling device internal structure is arranged and is followed successively by chilling ring 2, downtake 3, downtake protector 7, round trip overflow wet cyclone 6, bouffancy plate 4 from top to bottom.The entry position of shock chamber 2 is cinder notch 5, and chilling ring 2 is connected with cinder notch 5, and downtake 3 top is communicated with cinder notch 5; Downtake protector 7 is arranged on outside decline tube wall; Round trip overflow wet cyclone 6, bouffancy plate 4 are mechanically fixed between downtake 3 outer wall and housing 1 respectively from top to bottom.
Described chilling ring 2 adopts " chilling ring of gasifying furnace " that provide in Chinese patent CN200920025468.
Described downtake protector 7 is hollow structure; inside arranges flow deflector 701; flow deflector 701 is snakelike spiraling up around downtake; be highly 1m; be fixed on downtake 3 outer wall of distance cinder notch 0.3 ~ 0.7m; downtake protector water inlet 702 is connected with outside water equipment, and downtake protector water outlet 703 is connected with the cooling fluid transfer lime 206 of chilling ring 2.De-oxygenised water from outside water equipment is divided into two-way; the first via directly enters chilling ring 2 by cooling fluid transfer lime 206; second tunnel is introduced into downtake protector 7 and flows from bottom to top; then enter after cooling fluid transfer lime 206 converges with the first via, enter in chilling ring 2 and complete spray and form downtake moisture film.
It is two that round trip overflow wet cyclone 6 arranges number in the apparatus, round trip overflow wet cyclone 6 is made up of interior journey spinning liquid plate 601, outer journey spinning liquid plate 602 and Overflow Cone 603, angle between spinning liquid plate blade and horizontal direction is 20 ~ 50 °, outer journey spinning liquid plate 602 number of blade is 2 times of interior journey spinning liquid plate 601, diameter is 1.36 times of interior journey spinning liquid plate 601, and outer journey spinning liquid plate 602 height is 0.5 times of interior journey spinning liquid plate 601.Described Overflow Cone 603 number of blade is identical with interior journey spinning liquid plate, blade guide angle 30 ~ 60 °, overflow cone angle 2 θ=50 ~ 70 °.Outer journey spinning liquid plate 602 number of blade adds one times than interior journey spinning liquid plate 601, and also reduce with time interval, perforate uniformity coefficient improves greatly, improves the separation efficiency of gas-liquid.Overflow Cone 603 adopts helical blade structure, compares upflow tube, and backflow efficiency is high, improves the space availability ratio of shock chamber simultaneously.Synthetic gas carries a small amount of liquid secretly through interior journey spinning liquid plate 601 and outer journey spinning liquid plate 602, because centrifugal action, gas is up, and liquid is dirty, is dripped, compare upflow tube by Overflow Cone 603, and the resistance under liquid stream reduces, and can not there is hydrops phenomenon.
Described bouffancy plate 4 comprises excircle board 401, interior plectane 402, covers pressing plate 403 and middle layer 404, in bouffancy structure, is fixed on mechanically between downtake 3 outer wall and housing 1.Synthetic gas carries large quantity of fluid and foam secretly through bouffancy plate 4, and bouffancy plate 4, in bouffancy structure, compared with two dimensional structure, adds one times with the contact area of gas-liquid, adds the foam removal effect of bouffancy plate 4.Bouffancy plate 4 two-layer is up and down covered on pressing plate 403 and is provided with steel thorn, when the pressure that steel thorn acts on foam surface is greater than the surface tension of foam, and bubble burst.
Embodiment is described further the present invention to go out the technical scheme that the technical problems such as shock chamber's band water, synthetic gas ash content water-gas ratio that is high, synthetic gas are defective, shock chamber's inside liquid level keeps incessantly, downtake burns are taked optimal way for realizing synthetic gas below.
As shown in Figure 1; a kind of efficient chilling device; comprise housing 1, chilling ring 2, downtake 3, downtake protector 7, bouffancy plate 4, round trip overflow wet cyclone 6, be followed successively by chilling ring 2, downtake 3, downtake protector 7, round trip overflow wet cyclone 6, bouffancy plate 4 from top to bottom.Chilling ring 2 is connected with cinder notch 5, and downtake 3 top is communicated with cinder notch 5; Downtake protector 7 is arranged on downtake 3 outer wall; Be provided with two round trip overflow wet cyclones 6, round trip overflow wet cyclone 6 and bouffancy plate 4 are mechanically fixed between downtake 3 outer wall and housing 1 respectively.
The structure of " chilling ring of gasifying furnace " as shown in Figures 2 and 3 for providing in Chinese patent CN200920025468.The cooling fluid transfer lime 206 of chilling ring 2 is connected with water equipment in chilling device outside, and downtake protector water outlet 703 is connected with cooling fluid transfer lime 206.
As shown in Figure 4; downtake protector 7 is hollow structure; inside arranges flow deflector 701; flow deflector is snakelike spiraling up around downtake; be highly 1m; be fixed on the downtake outer wall of distance cinder notch 0.3 ~ 0.7m, downtake protector water inlet 702 is connected with outside water equipment, and downtake protector water outlet 703 is connected with the cooling fluid transfer lime 206 of chilling ring 2.
As shown in Figure 5, round trip overflow wet cyclone 6 is divided into interior journey spinning liquid plate 601, outer journey spinning liquid plate 602 and Overflow Cone 603, outer journey spinning liquid plate 602 number of blade is 2 times of interior journey spinning liquid plate 601,20 ~ 50 °, the blade elevation angle, diameter is 1.36 times of interior journey spinning liquid plate 601, and outer journey spinning liquid plate 602 height of cover cylinder is 0.5 times of interior journey spinning liquid plate 601.Overflow Cone 603 number of blade is identical with interior journey spinning liquid plate 601, blade guide angle 30 ~ 60 °, overflow cone angle 2 θ=50 ~ 70 °.
As shown in Figure 6, described bouffancy plate 4 comprises excircle board 401, interior plectane 402, covers pressing plate 403 and middle layer 404, be connected with between excircle board 401, interior plectane 402 and multiplely cover pressing plate 403, adjacent covers the middle layer 404 being connected with between pressing plate 403 and being parallel to each other, and bouffancy plate 4 is fixed between downtake 3 outer wall and housing 1.
A kiloton gasification installation, be provided with a high about 8690mm, internal diameter is about the efficient chilling device of 3000mm, and Quench space is about 61.4m
3.Enter synthetic gas and the ash temperature about about 1500 DEG C of efficient chilling device, speed is about 3.6m/s, annular space gas speed about 0.3m/s, synthetic gas and lime-ash enter water-bath washing, bloat the water surface by the mode of bubbling, carry out swelling of bubble via bouffancy plate 4 and two-layer round trip wet cyclone 6 and vanish, the process of gas-liquid separation and foam removal ash disposal, go out the crude synthesis gas temperature about about 200 DEG C of efficient chilling device, the detersive efficiency of ash, more than 78%, processes crude synthesis gas amount 8.75 ten thousand Nm
3/ h, the synthesis tolerance entering rear system is 70,000 Nm
3/ h, ash content is less than every cubic metre of below 2mg.
Downtake protector 7 is water leg structure, is fixed on from downtake 3 outer wall of cinder notch distance 0.3 ~ 0.7m.In the present embodiment, the discharge entering shock chamber's cooling fluid transfer lime 206 is about 170m
3, the discharge entering downtake protector 7 water-in is about 30m
3, the water coolant economic benefits and social benefits protection downtake of chilling ring 2 and downtake protector 7, relative to only arranging chilling ring, cooling water flow 200 m
3chilling device, chill effect is good, downtake life.
Claims (6)
1. an efficient chilling device, comprise housing (1), chilling ring (2), downtake (3), it is characterized in that: efficient chilling device is followed successively by chilling ring (2) from top to bottom, downtake (3), downtake protector (7), round trip overflow wet cyclone (6), bouffancy plate (4), chilling ring (2) is connected with cinder notch (5), downtake (3) top is communicated with cinder notch (5), downtake protector (7) is arranged on downtake (3) outer wall, round trip overflow wet cyclone (6), bouffancy plate (4) is connected between housing (1) inwall and downtake (3) outer wall from top to bottom.
2. efficient chilling device according to claim 1; it is characterized in that: described downtake protector (7) is hollow structure; inside arranges flow deflector (701); flow deflector (701) is snakelike spiraling up around downtake; be highly 1m; be fixed on the outer wall of distance cinder notch (5) 0.3 ~ 0.7m downtake (3); the water inlet (702) of downtake protector (7) is connected with outside water equipment, and downtake protector water outlet (703) is connected with the cooling fluid transfer lime (206) of chilling ring (2).
3. efficient chilling device according to claim 1, it is characterized in that: described round trip overflow wet cyclone (6) is by interior journey spinning liquid plate (601), outer journey spinning liquid plate (602) and Overflow Cone (603) composition, angle between spinning liquid plate blade and horizontal direction is 20 ~ 50 °, outer journey spinning liquid plate (602) number of blade is 2 times of interior journey spinning liquid plate (601), outer journey spinning liquid plate (602) diameter is 1.36 times of interior journey spinning liquid plate (601), outer journey spinning liquid plate (602) height is 0.5 times of interior journey spinning liquid plate (601), Overflow Cone (603) number of blade is identical with interior journey spinning liquid plate (601), blade guide angle 30 ~ 60 °, overflow cone angle 2 θ=50 ~ 70 °.
4. efficient chilling device according to claim 1, it is characterized in that: described bouffancy plate (4) comprises excircle board (401), interior plectane (402), covers pressing plate (403) and middle layer (404), be connected with between excircle board (401), interior plectane (402) and multiplely cover pressing plate (403), adjacent covers the middle layer (404) being connected with between pressing plate (403) and being parallel to each other, and bouffancy plate (4) is fixed between downtake (3) outer wall and housing (1).
5. efficient chilling device according to claim 1, is characterized in that: heat-resisting, the anti-oxidant and corrosion resistant austenitic chromium nickel stainless steel 310s material of described downtake (3) material selection.
6. the application of efficient chilling device according to claim 1, is characterized in that: described efficient chilling device is a part for the gasification installation of single nozzle or multi-nozzle slurry/dry pulverized coal charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697310.9U CN204251570U (en) | 2014-11-20 | 2014-11-20 | A kind of efficient chilling device |
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|---|---|---|---|
| CN201420697310.9U CN204251570U (en) | 2014-11-20 | 2014-11-20 | A kind of efficient chilling device |
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| CN204251570U true CN204251570U (en) | 2015-04-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357094A (en) * | 2014-11-20 | 2015-02-18 | 水煤浆气化及煤化工国家工程研究中心 | High-efficiency chilling device |
| CN106281470A (en) * | 2016-10-14 | 2017-01-04 | 江西昌昱实业有限公司 | The dry coal dust gasification furnace that a kind of Quench is split type |
| CN109943365A (en) * | 2019-04-11 | 2019-06-28 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gasification furnace shock chamber with dedusting, brokenly bubble, dehydration device |
-
2014
- 2014-11-20 CN CN201420697310.9U patent/CN204251570U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357094A (en) * | 2014-11-20 | 2015-02-18 | 水煤浆气化及煤化工国家工程研究中心 | High-efficiency chilling device |
| CN106281470A (en) * | 2016-10-14 | 2017-01-04 | 江西昌昱实业有限公司 | The dry coal dust gasification furnace that a kind of Quench is split type |
| CN109943365A (en) * | 2019-04-11 | 2019-06-28 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gasification furnace shock chamber with dedusting, brokenly bubble, dehydration device |
| CN109943365B (en) * | 2019-04-11 | 2023-12-19 | 甘肃蓝科石化高新装备股份有限公司 | Gasifier quench chamber with dust removal, bubble breaking and dehydration device |
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Effective date of registration: 20170426 Address after: Zaozhuang City, Shandong province 277500 wood and stone town Tengzhou City Patentee after: Company limited of Yan Kuang National Research & Engineering Center for Coal Slurry (Gasification) and Coal Chemical Industry Address before: Zaozhuang City, Shandong province 277500 wood and stone town Tengzhou City Patentee before: National Engineering Research Center of Watered Coal Slurry Gasification and Coa |