CN106350119A - Coal oxygen conveying control method and device for coal gasification plant - Google Patents
Coal oxygen conveying control method and device for coal gasification plant Download PDFInfo
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- CN106350119A CN106350119A CN201610765819.6A CN201610765819A CN106350119A CN 106350119 A CN106350119 A CN 106350119A CN 201610765819 A CN201610765819 A CN 201610765819A CN 106350119 A CN106350119 A CN 106350119A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 292
- 239000001301 oxygen Substances 0.000 title claims abstract description 292
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 292
- 239000003245 coal Substances 0.000 title claims abstract description 277
- 238000002309 gasification Methods 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000012806 monitoring device Methods 0.000 claims description 10
- 230000033228 biological regulation Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 150000002978 peroxides Chemical class 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003250 coal slurry Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 230000009123 feedback regulation Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- 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
- C10J3/723—Controlling or regulating the gasification process
-
- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
Abstract
The invention creatively provides a coal oxygen conveying control method for a coal gasification plant. The coal oxygen conveying control method comprises the following steps: setting an oxygen flow set value for a single oxygen conveying pipeline, giving an oxygen-to-coal ratio set value according to an oxygen-to-coal ratio curve corresponding to the pressure of the coal gasification plant, and enabling the oxygen flow to reach the oxygen flow set value through an oxygen flow regulating device according to a feedback oxygen flow measurement value; comparing the oxygen flow measurement value of the single oxygen conveying pipeline with the oxygen flow set value, using the bigger value to divide the oxygen-to-coal ratio set value to obtain a coal quantity set value for a corresponding coal conveying pipeline, and also enabling the coal quantity to reach the coal quantity set value through oxygen-to-coal ratio coal quantity regulating device according to the feedback coal quantity measurement value. The scheme for controlling the proportion of the oxygen flow and the coal quantity guarantees the operation stability of the coal gasification plant, also prevents the production of peroxide in a gasification reaction, and guarantees the safe operation of the gasification plant.
Description
Technical field
The invention belongs to Coal Gasification Technology field, especially relates to a kind of coal oxygen conveying controlling party of coal gasification apparatus
Method and device.
Background technology
China's Coal Chemical Industry develops rapidly in recent years, new type coal gasification technology such as water coal slurry pressurized gasification technology, and fine coal pressurizes
Gasification technology etc. is widely used in large-scale Coal Chemical Engineering Project.For Coal Gasification Technology, oxygen flow and coal amount
Coal gasification apparatus safety and institute's production of synthetic gas quality that proportional accurate control directly affects.
At present, main oxygen flow and coal amount control program are to control oxygen amount with coal amount, but the flow for coal comes
Say, the coal amount valve regulation of the either coal slurry pump rotational speed regulation of coal water slurry gasification, or coal gasification, because coal is solid
Grain, is all difficult to for the flow of coal to carry out precise control.Therefore, oxygen flow can be caused to fluctuate not with coal amount with coal control oxygen process
Disconnected fluctuation.Additionally, with coal control oxygen during gasification furnace load down, the instantaneous peroxide of gasification furnace can be led to, there is certain safety
Hidden danger.
Content of the invention
In view of this, the invention is directed to a kind of coal oxygen conveyance control method of coal gasification apparatus, by coal amount, oxygen
The Multi-variables optimum design such as amount, the operating pressure of coal gasification apparatus combine, and realize only passing through the setting of oxygen load, reach coal gas makeup
Put the purpose of steady load regulation, realize the precise control of coal amount, prevent instantaneous peroxide from occurring.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of coal oxygen conveyance control method of coal gasification apparatus, including following content:
Set the oxygen flow setting value of wall scroll oxygen conveying pipe line, the pressure according to coal gasification apparatus corresponds to oxygen coal ratio simultaneously
Curve gives oxygen coal than setting value, so that oxygen flow is reached according to the oxygen flow measured value of feedback by oxygen flow adjusting means
To oxygen flow setting value；
Oxygen conveying pipe line and coal feed-line correspond, by the oxygen flow measured value of wall scroll oxygen conveying pipe line and oxygen
Flow setting value relatively after, after taking large values divided by oxygen coal than setting value as corresponding coal feed-line coal amount setting value, thus
Ensure that coal amount setting value corresponds to the maximum of oxygen amount all the time, prevent gasification furnace peroxide；Simultaneously according to feedback coal measure definite value Lai
Coal amount is made to reach coal amount setting value by coal quantity regulating device；
Meanwhile, after the coal measurement definite value of corresponding coal feed-line being multiplied than setting value with oxygen coal, oxygen conveying pipe the most
The higher limit of the oxygen flow of line, adjusts oxygen flow by oxygen flow adjusting means and is less than this higher limit, be further ensured that
Gasification furnace will not occur peroxide operating mode.
Further, according to the oxygen conveying pipe line number amount that gasification furnace is online, the total oxygen demand of gasification furnace is all assigned to every
On oxygen conveying pipe line, the total load of gasification furnace is adjusted by total oxygen flow setting value, and total oxygen flow setting value needs height
Minimum required total oxygen demand under gasifier operation pressure, and the total oxygen demand that can bear less than highest under gasifier operation pressure；
I.e. the oxygen load of described coal gasification apparatus is more than the minimum requisite oxygen load of corresponding operating pressure, and can bear oxygen less than highest
Load.
Further, the oxygen coal of gasification furnace is chosen according to the operating pressure of gasification furnace than setting value, and gasification furnace oxygen coal ratio needs
The requisite oxygen coal ratio minimum higher than coal gasification apparatus, and the oxygen coal ratio that can bear less than the highest of coal gasification apparatus.
Further, the oxygen flow of every oxygen conveying pipe line need to be defeated higher than wall scroll coal under the operating pressure of coal gasification apparatus
Send the minimum required oxygen amount of pipeline (single fire mouth), and less than wall scroll coal feed-line (single fire under the operating pressure of coal gasification apparatus
Mouth) the oxygen amount that can bear of highest.
Further, under driving operating mode, the operating pressure according to coal gasification apparatus sets driving valve position and driving flow；
After driving success, by driving, the handoff functionality and normal operating operating mode between is switched under normal operating operating mode, carries out coal
The Load Regulation of gasification installation.
With respect to prior art, the invention methods described has the advantage that
(1) present invention realize oxygen conveying pipe line oxygen flow strict by a certain percentage with the coal flow of coal feed-line
Control and be conveyed into coal gasification apparatus and carry out gasification reaction, and realize the total load of coal gasification apparatus and stably adjust safely.
(2) present invention adjusts the load of coal gasification apparatus, the measurement of oxygen flow by the stable regulation of oxygen flow
Value and setting value calculate coal amount setting value after taking large values, and the measured value feedback of coal amount limits the setting value of oxygen flow simultaneously.This
Plant control method and effectively avoid wink during the load fluctuation causing during coal gasification apparatus adjust oxygen with coal and load down
When super oxygen problem.
The another object of the invention is to propose a kind of coal oxygen conveying control device of coal gasification apparatus, both can guarantee that
The stationarity of gasification installation operation, also can prevent the generation of gasification reaction peroxide it is ensured that the safe operation of gasification installation.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of coal oxygen conveying control device of coal gasification apparatus, including least one set coal oxygen feed-line, described one group of coal
Oxygen feed-line includes a coal feed-line and a corresponding oxygen conveying pipe line；Described coal feed-line is provided with coal amount
Adjusting means and coal amount monitoring device, configuration oxygen flow adjusting means and oxygen flow monitoring device on oxygen conveying pipe line,
Also include:
Oxygen flux control unit, with oxygen flow setting value, oxygen flow measured value, coal measures definite value, oxygen coal ratio sets
Definite value is input, and the oxygen flow measured value in conjunction with oxygen flow monitoring device feedback makes oxygen by oxygen flow adjusting means
Flow reaches oxygen flow setting value；Wherein, set as oxygen flow after coal measurement definite value being multiplied than setting value with oxygen coal
The higher limit of value；
Coal amount control unit, measures definite value, oxygen flow setting value, oxygen flow measured value, oxygen with coal amount setting value, coal
Coal is input than setting value, oxygen flow setting value is compared with oxygen flow measured value, takes wherein smaller value divided by oxygen
Coal, than setting value, as coal amount setting value, measures definite value in the coal feeding back with reference to coal amount monitoring device and passes through coal quantity regulating device
Coal amount is made to reach coal amount setting value.
Further, the oxygen load of described coal gasification apparatus is more than the minimum requisite oxygen load of corresponding operating pressure, and
Oxygen load can be born less than highest；The oxygen coal of described coal gasification apparatus is more than its minimum requisite oxygen coal ratio than setting value, and is less than
The oxygen coal ratio that highest can bear；
Further, also set up the operating mode switching switch between driving and two kinds of operating modes of lifting load, realize two kinds of operating modes
Between handoff functionality；Driving pressure according to described coal gasification apparatus sets the driving valve position of oxygen flow adjusting means and opens
Vehicle flowrate, and the driving valve position (i.e. rotating speed) of coal quantity regulating device.
Further, also comprise alarm device, oxygen flow and coal flow are respectively provided with flow alarm function, jump car chain, in fact
Oxygen determination throughput is calculated with coal feed flow and runs oxygen coal ratio, and arranges oxygen coal than warning, jumps car chain.
Further, each coal gasification apparatus can have multigroup coal oxygen feed-line, and quantitative range is 1～8, every group of coal oxygen
Feed-line can correspond to a burner of coal gasification apparatus it is also possible to multigroup coal oxygen feed-line is corresponded to coal gasification apparatus
One burner.
Further, described coal feed-line can be the fine coal of noble gases conveying or water-coal-slurry.
Further, described coal quantity regulating device is directed to the difference of pumped (conveying) medium, can adopt regulating valve, it is possible to use
Frequency conversion adjustment device for high, coal amount monitoring device selects effusion meter.
Further, described oxygen flow adjusting means selects regulating valve, and oxygen flow monitoring device selects effusion meter.
Further, described coal gasification apparatus can be various types of gasification furnaces, such as coal water slurry gasification, fine coal pressurization gas
Change, broken coal fluidized gasification, crushed coal pressure gasifying etc..
With respect to prior art, the invention described device has the advantage that
(1) present invention is the proportional control program of oxygen flow and coal amount, for coal gasification apparatus, according to oxygen flow
Setting value, oxygen coal, than the setting value of preset value calculation coal amount, simultaneously utilize the online coal quantity measurement value meter of coal feed-line feedback
Calculate the restriction of oxygen flow setting value, both can guarantee that the stationarity of gasification installation operation, and also can prevent the product of gasification reaction peroxide
Raw it is ensured that the safe operation of gasification installation.
(2) adjust the flow of coal according to oxygen flow, make coal consumption that oxygen amount is checked simultaneously again, form closed loop control
System, it is achieved that no matter gasification installation driving and parking, lifting load, all will not occur the problem of the instantaneous peroxide of gasification furnace.Whole control
Full automation is carried out, safety and stability.
(3) the corresponding driving flow of operating pressure split turner condition, the valve position of coal gasification apparatus are passed through, and normal operating work
The oxygen coal ratio of condition, the restriction of oxygen flow, effectively avoid the pressure-raising of coal gasification apparatus, present in operating pressure wave process
The risk of thermic load fluctuation.
Brief description
The accompanying drawing constituting the part of the invention is used for providing the invention is further understood, and the present invention creates
The schematic description and description made is used for explaining the invention, does not constitute the improper restriction to the invention.?
In accompanying drawing:
Fig. 1 is the control principle schematic diagram of the invention embodiment 1 and 2.
Description of reference numerals: 1. gasifier operation pressure 2. gasification furnace oxygen amount setting value 3. oxygen conveying pipe line number amount
4. gasification furnace oxygen coal minimum oxygen load curve more corresponding than maximum 6. gasifier operation pressure than minima 5. gasification furnace oxygen coal
7. the corresponding oxygen coal of the corresponding maximum oxygen load curve 8. gasification furnace pressure of gasifier operation pressure is than curve 9. gasification furnace pressure pair
Should single oxygen pipeline driving flow 10. gasification furnace pressure corresponding list oxygen pipeline minimum oxygen load curve 11. gasification furnace pressure correspond to
Single oxygen pipeline maximum oxygen load curve 12. gasification furnace pressure corresponding list oxygen conveying pipe line driving valve position curve 13. gasification furnace
Pressure corresponding list coal feed-line control valve position or gasification furnace pressure corresponding list coal feed-line coal slurry revolution speed 14. oxygen
Flow controlling unit 15. coal amount control unit 16. alarm device 17. oxygen system drives normally to run permutator.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can
To be mutually combined.
To describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment 1:
Taking multiinjector coal water slurry gasification technology as a example,
Coal feed-line is that water-coal-slurry pipeline a passes through to control coal quantity regulating device, and the present embodiment selects coal slurry pump frequency conversion to adjust
Fast i adjusting coal slurry flow, measures water-coal-slurry flow by coal slurry effusion meter ii and feeds back coal-supplying amount control unit 15 and carry out
Coal amount feedback regulation；
Oxygen conveying pipe line is that oxygen pipeline b adjusts oxygen flow by oxygen regulating valve iv, and oxygen flow meter iii will
Measurement oxygen flow, and feed back to the feedback regulation that oxygen flux control unit 14 carries out oxygen flow.
Restrictive condition is as follows:
According to the online oxygen conveying pipe line number amount 3 of gasification furnace, the total oxygen demand of gasification furnace is all assigned to every oxygen conveying
On pipeline, the total load of gasification furnace is adjusted by total gasification furnace oxygen flow setting value 2, according to gasification furnace pressure corresponding list oxygen
Pipeline minimum oxygen load curve 10 and the corresponding single oxygen pipeline maximum oxygen load curve 11 of gasification furnace pressure power, total oxygen flow setting value
Higher than minimum required total oxygen demand under gasifier operation pressure, and total oxygen that under gasifier operation pressure, highest can bear need to be less than
Amount.
Further, according to gasifier operation pressure corresponding minimum oxygen load curve 6 maximum oxygen corresponding with gasification furnace operating pressure
Load curve 7
The oxygen load of described coal gasification apparatus is more than the minimum requisite oxygen load of corresponding gasifier operation pressure 1, and little
Oxygen load can be born in highest；
The oxygen coal of described coal gasification apparatus is more than its minimum requisite oxygen coal than setting value and changes stove oxygen coal than minima 4 than i.e.,
And the oxygen coal ratio that can bear less than highest is that gasification furnace oxygen coal compares maximum.
During driving, the normal permutator 17 that runs of oxygen system driving of oxygen conveying pipe line goes to driving operating mode, first
According to gasification furnace pressure corresponding list oxygen conveying pipe line driving valve position curve 12, gasification furnace pressure corresponding list coal feed-line coal slurry
Revolution speed 13 setting the driving valve position of oxygen regulating valve iv and the driving rotating speed of coal slurry pump i, simultaneously according to gasification furnace pressure pair
Answer the oxygen coal oxygen coal more given than curve 8 than setting value, start to throw coal throwing oxygen and gasification furnace igniting.By gasification furnace control after throwing coal throwing oxygen
System processed sets automatically, anti-according to the gasification furnace pressure of oxygen regulating valve iv corresponding list oxygen pipeline driving flow 9 and oxygen flow
Feedback is adjusted and coal amount feedback regulation, makes driving coal amount and oxygen amount stable.
After driving success and stability of flow, the operating mode switching of the driving of oxygen conveying pipe line 17 and accidental conditions is opened
Pass goes to accidental conditions, and adjustment gasification furnace oxygen amount setting value 2 reaches the change of gasification furnace load.
During whole driving and lifting load, the total oxygen demand of gasification furnace, the oxygen flow of single oxygen device feed-line is divided equally
Not Shou total oxygen load of gasification furnace and the oxygen amount load limit of single oxygen conveying pipe line, oxygen coal compares so as to see who is superior than the oxygen coal by gasification furnace
Limit.Whole driving, lifting load process safety is stable.
In work process, oxygen flow is realized by alarm device 16 and is respectively provided with flow alarm function with coal flow, jump car even
Lock, actual measurement oxygen flow and coal feed flow calculate operation oxygen coal ratio, and arrange oxygen coal than reporting to the police, and jump car chain.
Embodiment 2:
Taking powdered coal pressuring gasified technology as a example,
The coal of fine coal pipeline powder adjusts angle valve i to adjust fine coal flow, fine coal densimeter and speed and combination composition fine coal
Flow Measuring System ii, measured fine coal flow feedback Limestone control unit is carried out coal amount feedback regulation.
Oxygen pipeline b adjusts oxygen flow by oxygen regulating valve iv, and it is anti-that oxygen flow meter iii will measure oxygen flow
Oxygen flux control unit of feeding carries out the feedback regulation of oxygen flow.
During driving, the normal permutator 17 that runs of the oxygen system driving of oxygen conveying pipe line is driven and lifting load
Operating mode switching switch goes to driving operating mode, first according to gasification furnace pressure corresponding list oxygen conveying pipe line driving valve position curve 12,
Gasification furnace pressure corresponding list coal feed-line control valve position 13 sets driving valve position and the fine coal adjustment angle of oxygen regulating valve iv
Valve i valve position, gives oxygen coal than setting value according to the corresponding oxygen coal of gasification furnace pressure than curve 8 simultaneously, starts to throw coal throwing oxygen and gasification
Furnace igniting.Throw and after oxygen thrown by coal, gasifier control system system set automatically, according to the corresponding single oxygen pipeline driving flow 9 of gasification furnace pressure and
The measured value of oxygen flow meter iii carries out oxygen flow feedback regulation and coal amount feedback regulation, makes driving coal amount and oxygen amount stable.
After driving success and stability of flow, the operating mode switching switch driven with normally run of oxygen conveying pipe line 17 is turned
To accidental conditions, the oxygen flow setting value 2 adjusting gasification furnace reaches the change of gasification furnace load.
During whole driving and lifting load, gasification furnace total oxygen demand, the oxygen amount of single oxygen device feed-line is respectively subject to
Total oxygen load of gasification furnace and single oxygen conveying pipe line oxygen amount load limit, oxygen coal compares so as to see who is superior restriction than by gasification furnace oxygen coal.Whole
Individual driving, lifting load process safety is stable.
For coal gasification, seam is adjusted using regulation angle valve, and for coal water slurry gasification, seam adjusts and adopts
Use coal slurry pump rotational speed regulation, this is the coal quantity regulating device under two kinds of gasification modes.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all this
Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement made etc., should be included in the invention
Protection domain within.
Claims (10)
1. a kind of coal oxygen conveyance control method of coal gasification apparatus is it is characterised in that include following content:
Set the oxygen flow setting value of wall scroll oxygen conveying pipe line, curve is compared according to the corresponding oxygen coal of pressure of coal gasification apparatus simultaneously
Given oxygen coal, than setting value, makes oxygen flow reach oxygen according to the oxygen flow measured value of feedback by oxygen flow adjusting means
Throughput setting value；
After the oxygen flow measured value of wall scroll oxygen conveying pipe line is compared with oxygen flow setting value, set divided by oxygen coal ratio after taking large values
Definite value measures definite value come by coal quantity regulating device as the coal amount setting value of corresponding coal feed-line, the simultaneously coal according to feedback
Coal amount is made to reach coal amount setting value；
Meanwhile, after the coal measurement definite value of corresponding coal feed-line being multiplied than setting value with oxygen coal, as oxygen conveying pipe line
The higher limit of oxygen flow, adjusts oxygen flow by oxygen flow adjusting means and is less than this higher limit.
2. coal gasification apparatus according to claim 1 coal oxygen conveyance control method it is characterised in that: existed according to gasification furnace
The oxygen conveying pipe line number amount of line, the total oxygen demand of gasification furnace is all assigned on every oxygen conveying pipe line；Total oxygen of gasification furnace is born
Lotus is adjusted by total oxygen flow setting value, and total oxygen flow setting value need to be minimum required total higher than under gasifier operation pressure
Oxygen amount, and the total oxygen demand that can bear less than highest under gasifier operation pressure.
3. coal gasification apparatus according to claim 1 coal oxygen conveyance control method it is characterised in that: the oxygen coal of gasification furnace
Chosen according to the operating pressure of gasification furnace than setting value, gasification furnace oxygen coal is higher than the minimum requisite oxygen coal ratio of coal gasification apparatus than need
Value, and the oxygen coal ratio that can bear less than the highest of coal gasification apparatus.
4. coal gasification apparatus according to claim 1 coal oxygen conveyance control method it is characterised in that: the conveying of every oxygen
The oxygen flow of pipeline higher than the minimum required oxygen amount of wall scroll coal feed-line under the operating pressure of coal gasification apparatus, and need to be less than coal
The oxygen amount that under the operating pressure of gasification installation, the highest of wall scroll coal feed-line can bear.
5. coal gasification apparatus according to claim 1 coal oxygen conveyance control method it is characterised in that: in driving operating mode
Under, the operating pressure according to coal gasification apparatus sets driving valve position and driving flow；After driving success, grasped with normal by driving
Make handoff functionality between operating mode to be switched to the Load Regulation carrying out coal gasification apparatus under normal operating operating mode.
6. the coal oxygen conveying control device of a kind of coal gasification apparatus, including least one set coal oxygen feed-line, described one group of coal oxygen
Feed-line includes a coal feed-line and a corresponding oxygen conveying pipe line；Described coal feed-line is provided with coal amount and adjusts
Regulating device and coal amount monitoring device, configuration oxygen flow adjusting means and oxygen flow monitoring device on oxygen conveying pipe line, its
It is characterised by: also include
Oxygen flux control unit, with oxygen flow setting value, oxygen flow measured value, coal measures definite value, oxygen coal compares setting value
For inputting, the oxygen flow measured value in conjunction with oxygen flow monitoring device feedback makes oxygen flow by oxygen flow adjusting means
Reach oxygen flow setting value；Wherein, as oxygen flow setting value after coal measurement definite value being multiplied than setting value with oxygen coal
Higher limit；
Coal amount control unit, measures definite value, oxygen flow setting value, oxygen flow measured value, oxygen coal ratio with coal amount setting value, coal
Setting value is input, oxygen flow setting value is compared with oxygen flow measured value, takes wherein smaller value divided by oxygen coal ratio
Setting value, as coal amount setting value, measuring definite value in the coal feeding back with reference to coal amount monitoring device makes coal by coal quantity regulating device
Amount reaches coal amount setting value.
7. coal gasification apparatus according to claim 1 coal oxygen conveying control device it is characterised in that: the makeup of described coal gas
The oxygen load put is more than the minimum requisite oxygen load of corresponding operating pressure, and can bear oxygen load less than highest；Further, described
The oxygen coal of coal gasification apparatus is more than its minimum requisite oxygen coal ratio than setting value, and the oxygen coal ratio that can bear less than highest.
8. coal gasification apparatus according to claim 1 coal oxygen conveying control device it is characterised in that: also comprising report to the police dress
Put, oxygen flow and coal flow are respectively provided with flow alarm function, and oxygen coal ratio is set and report to the police.
9. coal gasification apparatus according to claim 1 coal oxygen conveying control device it is characterised in that: also set up driving and
Normally run the operating mode switching switch between two kinds of operating modes, the driving pressure according to described coal gasification apparatus sets oxygen flow and adjusts
Drive flow in the driving valve position of regulating device, and the driving valve position of coal quantity regulating device or pump driving rotating speed.
10. coal gasification apparatus according to claim 1 coal oxygen conveying control device it is characterised in that: described coal gasification
Device can be various types of gasification furnaces, such as coal water slurry gasification, powdered coal pressuring gasified, broken coal fluidized gasification, broken coal pressurization gas
Change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610765819.6A CN106350119B (en) | 2016-08-29 | 2016-08-29 | A kind of the coal oxygen conveyance control method and device of coal gasification apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610765819.6A CN106350119B (en) | 2016-08-29 | 2016-08-29 | A kind of the coal oxygen conveyance control method and device of coal gasification apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN106350119A true CN106350119A (en) | 2017-01-25 |
| CN106350119B CN106350119B (en) | 2019-12-03 |
Family
ID=57856466
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| CN201610765819.6A Active CN106350119B (en) | 2016-08-29 | 2016-08-29 | A kind of the coal oxygen conveyance control method and device of coal gasification apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108342225A (en) * | 2018-01-26 | 2018-07-31 | 山东明泉新材料科技有限公司 | A kind of fine coal and gasifying agent feed control method |
| CN108822897A (en) * | 2018-06-01 | 2018-11-16 | 山东明泉新材料科技有限公司 | A kind of startup burner control method for can be improved ignition success rate and can opening/stopping online |
| CN113867425A (en) * | 2021-10-09 | 2021-12-31 | 宁夏神耀科技有限责任公司 | Control method and control device for pulverized coal flow and oxygen flow of gasification furnace |
| CN115125037A (en) * | 2021-03-25 | 2022-09-30 | 航天长征化学工程股份有限公司 | Method for online adjustment of operating parameters of gasification furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342225A (en) * | 2018-01-26 | 2018-07-31 | 山东明泉新材料科技有限公司 | A kind of fine coal and gasifying agent feed control method |
| CN108822897A (en) * | 2018-06-01 | 2018-11-16 | 山东明泉新材料科技有限公司 | A kind of startup burner control method for can be improved ignition success rate and can opening/stopping online |
| CN108822897B (en) * | 2018-06-01 | 2020-05-26 | 山东明泉新材料科技有限公司 | Start-up burner control method capable of improving ignition success rate and achieving on-line start/stop |
| CN115125037A (en) * | 2021-03-25 | 2022-09-30 | 航天长征化学工程股份有限公司 | Method for online adjustment of operating parameters of gasification furnace |
| CN115125037B (en) * | 2021-03-25 | 2023-12-15 | 航天长征化学工程股份有限公司 | Method for online adjustment of operation parameters of gasification furnace |
| CN113867425A (en) * | 2021-10-09 | 2021-12-31 | 宁夏神耀科技有限责任公司 | Control method and control device for pulverized coal flow and oxygen flow of gasification furnace |
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| CN106350119B (en) | 2019-12-03 |
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Effective date of registration: 20240118 Address after: 300400 Beijing Tianjin Road, Beichen District, Tianjin Patentee after: CHINA TIANCHEN ENGINEERING Co.,Ltd. Patentee after: TIANJIN TIANCHEN GREEN ENERGY ENGINEERING TECHNOLOGY RESEARCH & DEVELOPMENT Co.,Ltd. Patentee after: China Chemical Equipment Technology Group Co.,Ltd. Address before: No. 1 Jingjin Road, Beichen District, Tianjin City, 300400 Patentee before: CHINA TIANCHEN ENGINEERING Co.,Ltd. Patentee before: TIANJIN TIANCHEN GREEN ENERGY ENGINEERING TECHNOLOGY RESEARCH & DEVELOPMENT Co.,Ltd. |