CN106635180A - Water quenching structure of gasifier - Google Patents
Water quenching structure of gasifier Download PDFInfo
- Publication number
- CN106635180A CN106635180A CN201611011472.2A CN201611011472A CN106635180A CN 106635180 A CN106635180 A CN 106635180A CN 201611011472 A CN201611011472 A CN 201611011472A CN 106635180 A CN106635180 A CN 106635180A
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- CN
- China
- Prior art keywords
- quench
- quenching
- pipe
- discharge outlet
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The invention relates to a water quenching structure of a gasifier and solves the problems in synthetic gas cooling by an existing gasifier, such as low efficiency and high water consumption. According to the technical scheme, the water quenching structure comprises a quenching chamber of the gasifier, the upper portion of the quenching chamber is provided with a lower slag port of a gasifying chamber, a quenching pipe is arranged in the quenching chamber, the upper end of the quenching pipe is connected to the lower slag port, the lower end of the quenching pipe is positioned below liquid surface, the upper portion and middle of the inner wall of the quenching pipe are provided with a plurality of quenching rings communicated with a quenching medium inlet, and each quenching ring is peripherally and evenly provided with spray outlets. The water quenching structure is simple in structure, high in quenching efficiency, low in quenching water consumption, high in energy efficiency and low in energy consumption, environmentally friendly, and easy to reform.
Description
Technical field
The present invention relates to the Quench structure in a kind of gasification furnace, the water quick cooling structure of specifically a kind of gasification furnace.
Background technology
Coal Chemical Industry is the important way of coal utilization, and coal gasification is then the tap of Coal Chemical Industry.With the development of gasification technology,
Dry powder gasification process with materials such as petroleum coke, biomass as raw material is also gradually applied.Solid material is with dry powder
Violent chemical reaction is carried out at high temperature with gasifying agent in gasification furnace, produces the crude synthesis gas of high temperature, high-temperature crude synthesis gas
Lower procedure is entered after cooling dedusting.
One of common cooling method is cooled down using substantial amounts of Water spray, and to high-temperature synthesis gas cooling process is carried out, should
Technical cooling water consumption is big, and the washing Heisui River amount of generation is more, need to configure the larger black water treatment system of disposal ability and just can guarantee that
The operation of device, while also increasing the investment of whole gasification installation.
Shock chamber is generally cooled down using chilling ring gap structure to high-temperature synthesis gas in existing gasification furnace, this constitution water
Stream forms liquid film along down-comer, mixes uneven when contacting with synthesis gas, needs more chilled water just can cool down, while increasing
The produce load of black water treatment system is added.......
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of simple structure, Quench efficiency high, chilled water
Consumption is little, energy-saving, be environment-friendly, easy to transform gasification furnace water quick cooling structure.
Technical scheme includes the shock chamber of gasification furnace, and the shock chamber top is provided with the lower cinder notch of vaporizer, the Quench
Interior is provided with Quench pipe, and the upper end of the Quench pipe is connected with the lower cinder notch, and lower end is located at below liquid level, in the Quench pipe
The top and middle part of wall is uniformly provided with multiple and shock chilling medium inlet communication chilling ring, circumferentially uniformly opens on the chilling ring
There is discharge outlet.
Uniformly be provided with upper strata discharge outlet and lower floor's discharge outlet on the chilling ring, lower floor's discharge outlet vertically to
Under be attached on Quench tube wall face, the upper strata discharge outlet diagonally downward, with the wall of Quench pipe in 30 °～75 ° of angle.
The internal diameter of the Quench pipe is 1.6～3.2 times of lower cinder notch internal diameter.
Position of the aperture of discharge outlet according to chilling ring on Quench pipe be from top to bottom step by step on the chilling ring
Reduce.
The aperture of discharge outlet is 4.0～5.5mm on the chilling ring of the superiors, is sprayed out on undermost chilling ring
The aperture of mouth is 1.5～3.0mm.
For problem present in background technology, inventor devises the Quench pipe connected with lower cinder notch in shock chamber, will
The indoor slag gas of gasification is downwardly in Quench pipe, while multiple chilling rings are set on the top of Quench pipe and middle part, by swashing
The discharge outlet of cold ring sprays water smoke Quench synthesis gas, and both acutely exchange heat, effective temperature-reducing synthesis gas and lime-ash.Due to synthesis gas
Being limited in Quench pipe with lime-ash carries out P-Coercive heat exchange, therefore aerosol mix homogeneously, heat exchange efficiency are high, effectively reduce
The consumption of chilled water.Further, the discharge outlet on chilling ring includes upper strata discharge outlet and lower floor's discharge outlet, it is described under
Layer discharge outlet is attached to vertically downward on Quench tube wall face, and the chilled water that this strand sprays can be dirty along Quench pipe, forms one layer
Even liquid film, is prevented from synthesis gas and Quench pipe directly contact and producing hot-spot causes Quench pipe to damage, and can also prevent
Only the lime-ash in synthesis gas sticks to Quench inside pipe wall, and upper strata discharge outlet is diagonally downward, is atomizer, the water smoke of ejection
Contact mixing with the crude synthesis gas of high temperature, the wall of direct Quench, preferably the upper strata discharge outlet and Quench pipe in 30 °～
75 ° of angle, the resistance drop for advantageously reducing synthesis gas is sprayed with downward-sloping angle, while the angle sprays can chilled water
The atomized drop for going out has larger area coverage in down-comer, so as to strengthen the mixed effect of synthesis gas and chilled water.
Further, the internal diameter of preferred Quench pipe be 1.6～3.2 times of lower cinder notch internal diameter, synthesis gas enter Quench pipe after by
In space increase, increased and exist in the time of staying of the synthesis gas in Quench pipe, Quench pipe sufficient blending space, Ke Yiqiang
The effect of mass transmitting being combined between gas and chilled water, makes full use of the gasification latent heat of water, so as to further reduce shock chilling medium
Consumption.
On the premise of chill effect is ensured, in order to further reduce the consumption of cooling water, to diverse location on Quench pipe
Chilling ring on discharge outlet aperture be also carried out limit, it is contemplated that from top to bottom temperature progressively declines synthesis gas, therefore
Position of the aperture of discharge outlet according to chilling ring on Quench pipe from top to bottom reduces step by step on design chilling ring.It is preferred that
The aperture of discharge outlet is 4.0～5.5mm on the chilling ring of the superiors, and aperture is big, can spray more chilled water, accelerates cooling
Process, makes synthesis gas fast cooling；The aperture of discharge outlet is 1.5～3.0mm on undermost chilling ring, and aperture is little, can be with
The atomizing effect of reinforcing chilled water, makes the particle diameter of atomized drop less, is conducive to the heat exchange of synthesis gas and chilled water, makes full use of
The latent heat of chilled water, so as to reduce the consumption of chilled water.
Beneficial effect：
Synthesis gas can be quickly chilled to 110～200 DEG C by chilling structure of the present invention by 1300 DEG C～1600 DEG C, not designed
The vaporizer of the structure is compared, and under same chilling temp, the Quench water yield can reduce about more than 25%, so as to reduce usage on black water
Equipment energy consumption, environmentally friendly, present configuration is simple, Quench efficiency high, be easy to transformation, has broad application prospects.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Accompanying drawing 2 is ring sparger upward view.
Accompanying drawing 3 is ring sparger sectional view.
Cinder notch under 1- vaporizers, 2- ring spargers, 3- Quench pipes, 4- syngas outlets, the outlet of 5- Heisui River, 6- shock chambers, 7-,
8- gasification furnaces, 9- upper stratas discharge outlet, 10- lower floors discharge outlet, 11- shock chilling medium imports.
Specific embodiment
Below in conjunction with the accompanying drawings explanation is further explained to the present invention：
Referring to Fig. 1, the lower section of vaporizer 1 of gasification furnace 8 is shock chamber 6, and the upper and lower wall of shock chamber 6 is respectively equipped with conjunction
Into gas outlet 4 and Heisui River outlet 5.The top of shock chamber 6 is provided with the lower cinder notch 7 of vaporizer 1, the lower connection Quench of cinder notch 7 pipe 3, institute
The internal diameter for stating Quench pipe 3 is 1.6～3.2 times of the internal diameter of lower cinder notch 7.The lower end of Quench pipe 3 is located at below liquid level, the Quench pipe 3
The top and middle part of inwall is uniformly provided with multiple chilling rings 2 connected with shock chilling medium import 11, on the chilling ring 2 circumferentially
Upper strata discharge outlet 9 and lower floor's discharge outlet 10 are uniformly provided with, lower floor's discharge outlet 10 is attached to vertically downward the wall of Quench pipe 3
On face, the upper strata discharge outlet 9 diagonally downward, with the wall of Quench pipe 3 in 30 °～75 ° of angle a.The chilling ring 2
Position of the aperture of discharge outlet according to chilling ring 2 on Quench pipe 3 from top to bottom reduces step by step.
The discharge outlet aperture of the chilling ring 2 of the superiors is 4.0～5.5mm, and the spray of undermost chilling ring 2 goes out
Oral pore footpath is 1.5～3.0mm.
The course of work：
High-temperature synthesis gas that the vaporizer 1 of gasification furnace 8 is produced and lime-ash enter Quench pipe 3 through lower cinder notch 7, chilled water by
Shock chilling medium entrance 11 enters ring sparger 2, and two strands of subsequent Quench moisture sprays from ring sparger 2, and one sprays from upper strata discharge outlet 9
Go out, formed atomization drop, contact mixing with the crude synthesis gas of high temperature, acutely exchanged heat, chilled water gasified absorb from
The substantial amounts of heat of crude synthesis gas, significantly reduces the temperature of synthesis gas, meanwhile, the lime-ash in synthesis gas is fallen by cooling down
Enter the bottom of shock chamber 6.Another burst of chilled water sprays from lower floor's discharge outlet 10, dirty along Quench pipe, forms one layer of uniform liquid
Film, is prevented from synthesis gas and the directly contact of Quench pipe 3 and producing hot-spot causes Quench pipe to damage, on the other hand, Quench
Water can prevent the lime-ash in synthesis gas from sticking to Quench inside pipe wall along Quench pipe 3 is dirty, make so as to play protection to Quench pipe 3
With.The region of violent heat exchange is carried out at the 0.5～2.5m of top of Quench pipe 3 for high-temperature synthesis gas and chilled water, due to this Quench dress
Put Quench pipe 1.6～3.2 times of a diameter of lower cinder notch, increased the time of staying of the synthesis gas in Quench pipe, in Quench pipe
There is sufficient blending space, the effect of mass transmitting between synthesis gas and chilled water can be strengthened, make full use of the gasification latent heat of water,
So as to reduce the consumption of shock chilling medium.Crude synthesis gas after cooling are entered below the Heisui River liquid level of the lower section of shock chamber 6, and from Quench
The bottom periphery of pipe 3 is upwardly into shock chamber's gas-phase space, due to synthesis gas and Heisui River directly contact, can again serve to what is lowered the temperature
Effect, while carrying out preliminary clean result to the lime-ash in synthesis gas, eliminates the bulky grain lime-ash in synthesis gas, reduces
The dustiness of syngas outlet.Synthesis gas after cooling down and primary wash enters next from syngas outlet 4
Operation.The Heisui River that washing is produced then enters black water treatment system from Heisui River outlet 5.
The present invention is lowered the temperature using ring sparger 2 to synthesis gas Quench, and the water smoke of ejection is very abundant with the contact of synthesis gas, work
The latent heat of skill water gets the maximum use, and can make Quench discharge reduction more than 25%.Simultaneously because ring sparger 2 sprays one
Water is dirty along Quench pipe, forms liquid film, and Quench pipe can be played a good protection, and extends the use longevity of Quench pipe
Life.Chilled water usage amount can be reduced using the present invention, the scale of follow-up black water treatment system is reduced, so as to reducing investing and transporting
Row cost, the circulating load for reducing process cycles buck, energy efficient.
Claims (5)
1. a kind of water quick cooling structure of gasification furnace, including the shock chamber of gasification furnace, the shock chamber top is provided with vaporizer
Cinder notch, it is characterised in that Quench pipe is provided with the Quench room, the upper end of the Quench pipe is connected with the lower cinder notch, lower end
Below liquid level, the top and middle part of the Quench inside pipe wall are uniformly provided with multiple and shock chilling medium inlet communication Quench
Ring, is circumferentially uniformly provided with discharge outlet on the chilling ring.
2. the water quick cooling structure of gasification furnace as claimed in claim 1, it is characterised in that upper strata is uniformly provided with the chilling ring
Discharge outlet and lower floor's discharge outlet, lower floor's discharge outlet is attached to vertically downward on Quench tube wall face, the upper strata spray
Outlet-inclined impeller vane is downward, with the angle that the wall of Quench pipe is in 30 °～75 °.
3. the water quick cooling structure of gasification furnace as claimed in claim 1 or 2, it is characterised in that under the internal diameter of the Quench pipe is
1.6～3.2 times of cinder notch internal diameter.
4. the water quick cooling structure of gasification furnace as claimed in claim 1 or 2, it is characterised in that discharge outlet on the chilling ring
Position of the aperture according to chilling ring on Quench pipe from top to bottom reduce step by step.
5. the water quick cooling structure of gasification furnace as claimed in claim 4, it is characterised in that spray on the chilling ring of the superiors
The aperture of outlet is 4.0～5.5mm, and the aperture of discharge outlet is 1.5～3.0mm on undermost chilling ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011472.2A CN106635180A (en) | 2016-11-17 | 2016-11-17 | Water quenching structure of gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011472.2A CN106635180A (en) | 2016-11-17 | 2016-11-17 | Water quenching structure of gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106635180A true CN106635180A (en) | 2017-05-10 |
Family
ID=58809034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011472.2A Pending CN106635180A (en) | 2016-11-17 | 2016-11-17 | Water quenching structure of gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106635180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961708A (en) * | 2021-02-07 | 2021-06-15 | 恒力石化（大连）炼化有限公司 | Gasifier downcomer protection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127878A2 (en) * | 1983-06-02 | 1984-12-12 | Texaco Development Corporation | Method of cooling hot synthesis gas and synthesis gas cooler |
| EP0160424A2 (en) * | 1984-04-27 | 1985-11-06 | Texaco Development Corporation | Quench ring and dip tube assembly |
| CN1944591A (en) * | 2006-11-09 | 2007-04-11 | 北京航天石化技术装备工程公司 | Chilling ring of gasifying furnace |
| CN101550360A (en) * | 2009-05-19 | 2009-10-07 | 水煤浆气化及煤化工国家工程研究中心 | Quenching ring for gasification furnace |
| CN102774864A (en) * | 2011-05-09 | 2012-11-14 | 贵阳铝镁设计研究院有限公司 | Recovering device for steam in capacitance-expanding groove |
| CN104531229A (en) * | 2014-12-22 | 2015-04-22 | 中国天辰工程有限公司 | Chilling device and chilling method of high-temperature gas of gasifier |
| CN204958832U (en) * | 2015-09-10 | 2016-01-13 | 中石化宁波工程有限公司 | Gasifier of thick synthetic gas of on -catalytic high temperature |
| CN206188755U (en) * | 2016-11-17 | 2017-05-24 | 中国五环工程有限公司 | Water rapid cooling structure of gasifier |
-
2016
- 2016-11-17 CN CN201611011472.2A patent/CN106635180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127878A2 (en) * | 1983-06-02 | 1984-12-12 | Texaco Development Corporation | Method of cooling hot synthesis gas and synthesis gas cooler |
| EP0160424A2 (en) * | 1984-04-27 | 1985-11-06 | Texaco Development Corporation | Quench ring and dip tube assembly |
| CN1944591A (en) * | 2006-11-09 | 2007-04-11 | 北京航天石化技术装备工程公司 | Chilling ring of gasifying furnace |
| CN101550360A (en) * | 2009-05-19 | 2009-10-07 | 水煤浆气化及煤化工国家工程研究中心 | Quenching ring for gasification furnace |
| CN102774864A (en) * | 2011-05-09 | 2012-11-14 | 贵阳铝镁设计研究院有限公司 | Recovering device for steam in capacitance-expanding groove |
| CN104531229A (en) * | 2014-12-22 | 2015-04-22 | 中国天辰工程有限公司 | Chilling device and chilling method of high-temperature gas of gasifier |
| CN204958832U (en) * | 2015-09-10 | 2016-01-13 | 中石化宁波工程有限公司 | Gasifier of thick synthetic gas of on -catalytic high temperature |
| CN206188755U (en) * | 2016-11-17 | 2017-05-24 | 中国五环工程有限公司 | Water rapid cooling structure of gasifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961708A (en) * | 2021-02-07 | 2021-06-15 | 恒力石化（大连）炼化有限公司 | Gasifier downcomer protection device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170510 |