CN106350119B - A kind of the coal oxygen conveyance control method and device of coal gasification apparatus - Google Patents
A kind of the coal oxygen conveyance control method and device of coal gasification apparatus Download PDFInfo
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- CN106350119B CN106350119B CN201610765819.6A CN201610765819A CN106350119B CN 106350119 B CN106350119 B CN 106350119B CN 201610765819 A CN201610765819 A CN 201610765819A CN 106350119 B CN106350119 B CN 106350119B
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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 267
- 238000002309 gasification Methods 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 238000012806 monitoring device Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 150000002978 peroxides Chemical class 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000003250 coal slurry Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 230000009123 feedback regulation Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 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
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
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 provides a kind of coal oxygen conveyance control method of coal gasification apparatus, including following content: the oxygen flow setting value of setting single oxygen conveying pipe line, corresponding to oxygen coal according to the pressure of coal gasification apparatus gives oxygen coal than setting value than curve simultaneously, so that oxygen flow is reached oxygen flow setting value by oxygen flow regulating device according to the oxygen flow measured value of feedback；By the oxygen flow measured value of single oxygen conveying pipe line compared with oxygen flow setting value after, coal amount setting value after taking large values divided by oxygen coal than setting value as corresponding coal feed-line, while definite value is measured to make coal amount reach coal amount setting value by coal quantity regulating device according to the coal of feedback.The present invention is the proportional control program of oxygen flow and coal amount, both can guarantee the stationarity of gasification installation operation, and can also prevent the generation of gasification reaction peroxide, guarantee the safe operation of gasification installation.
Description
Technical field
The invention belongs to Coal Gasification Technology field, conveys controlling party more particularly, to a kind of coal oxygen of coal gasification apparatus
Method and device.
Background technique
China's coal chemical industry develops rapidly in recent years, new type coal gasification technology such as water coal slurry pressurized gasification technology, fine coal pressurization
Gasification technology etc. is widely used in large-scale Coal Chemical Engineering Project.For Coal Gasification Technology, oxygen flow and coal amount
It is proportional to accurately control the coal gasification apparatus safety directly affected and institute's production of synthetic gas quality.
Currently, main oxygen flow and coal amount control program are to control oxygen amount with coal amount, however the flow of coal is come
It says, either the coal slurry pump rotational speed regulation of coal water slurry gasification or coal gasification coal amount valve regulation, since coal is solid
Grain, is difficult to accurately be controlled the flow of coal.Therefore, oxygen flow will cause as coal amount fluctuates not with coal control oxygen process
Disconnected fluctuation.In addition, will lead to the instantaneous peroxide of gasification furnace, there are certain safety with coal control oxygen during gasification furnace load down
Hidden danger.
Summary 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 designs combination such as amount, operating pressure of coal gasification apparatus, realizes the setting for only passing through oxygen load, reaches coal gas makeup
The purpose of steady load adjusting is set, realizes the accurate control of coal amount, prevents instantaneous peroxide from occurring.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of coal oxygen conveyance control method of coal gasification apparatus, including following content:
The oxygen flow setting value of single oxygen conveying pipe line is set, while oxygen coal ratio is corresponded to according to the pressure of coal gasification apparatus
Curve gives oxygen coal than setting value, reaches oxygen flow by oxygen flow regulating device according to the oxygen flow measured value of feedback
To oxygen flow setting value；
Oxygen conveying pipe line and coal feed-line correspond, by the oxygen flow measured value and oxygen of single oxygen conveying pipe line
Flow setting value relatively after, the coal amount setting value after taking large values divided by oxygen coal than setting value as corresponding coal feed-line, thus
Guarantee that coal amount setting value corresponds to the maximum value of oxygen amount always, prevents gasification furnace peroxide；Simultaneously according to the coal of feedback measure definite value come
Coal amount is set to reach coal amount setting value by coal quantity regulating device；
Meanwhile the coal of corresponding coal feed-line being measured after definite value is multiplied with oxygen coal than setting value, oxygen conveying pipe the most
The upper limit value of the oxygen flow of line adjusts oxygen flow by oxygen flow regulating device and is no more than this upper limit value, is further ensured that
Peroxide operating condition will not occur for gasification furnace.
Further, the oxygen conveying pipe line number amount online according to gasification furnace, assigns to every for the total oxygen demand of gasification furnace
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
The minimum required total oxygen demand under gasifier operation pressure, and the total oxygen demand that can bear lower than highest under gasifier operation pressure；
The oxygen load of the i.e. described coal gasification apparatus is greater 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 than setting value according to the operating pressure of gasification furnace, and gasification furnace oxygen coal is than needing
The requisite oxygen coal ratio minimum higher than coal gasification apparatus, and the oxygen coal ratio that can bear lower than the highest of coal gasification apparatus.
Further, it is defeated need to be higher than single coal under the operating pressure of coal gasification apparatus for the oxygen flow of every oxygen conveying pipe line
The minimum required oxygen amount of pipeline (single fire mouth) is sent, and lower than single 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 condition, driving valve position and driving flow are set according to the operating pressure of coal gasification apparatus；
It after driving successfully, is switched under normal operating operating condition by the handoff functionality driven between normal operating operating condition, carries out coal
The Load Regulation of gasification installation.
Compared with the existing technology, the invention the method has the advantage that
(1) present invention realizes that the coal flow of the oxygen flow and coal feed-line of oxygen conveying pipe line is stringent by a certain percentage
Control is conveyed into coal gasification apparatus and carries out gasification reaction, and realizes that the total load of coal gasification apparatus is stablized safety and adjusted.
(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, while the measured value feedback of coal amount limits the setting value of oxygen flow.This
Kind of control method avoids coal gasification apparatus effectively with wink during load fluctuation caused by during coal tune oxygen and load down
When super oxygen the problem of.
The another object of the invention is to propose a kind of coal oxygen conveying control device of coal gasification apparatus, both can guarantee
The stationarity of gasification installation operation, can also prevent the generation of gasification reaction peroxide, guarantee the safe operation of gasification installation.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of coal oxygen conveying control device of coal gasification apparatus, including at least one set of coal oxygen feed-line, one group of coal
Oxygen feed-line includes a coal feed-line and a corresponding oxygen conveying pipe line；The coal feed-line is equipped with coal amount
Regulating device and coal amount monitoring device configure oxygen flow regulating device and oxygen flow monitoring device on oxygen conveying pipe line,
Further include:
Oxygen flux control unit, with oxygen flow setting value, oxygen flow measured value, coal measure definite value, oxygen coal ratio is set
Definite value is input, makes oxygen by oxygen flow regulating device in conjunction with the oxygen flow measured value that oxygen flow monitoring device is fed back
Flow reaches oxygen flow setting value；Wherein, it is set after coal measurement definite value being multiplied with oxygen coal than setting value as oxygen flow
The upper limit value 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 than setting value be input, oxygen flow setting value is compared with oxygen flow measured value, take wherein smaller value divided by oxygen
Coal is than setting value, as coal amount setting value, passes through coal quantity regulating device combining the coal of coal amount monitoring device feedback to measure definite value
Coal amount is set to reach coal amount setting value.
Further, the oxygen load of the coal gasification apparatus is greater than the minimum requisite oxygen load of corresponding operating pressure, and
Oxygen load can be born less than highest；The oxygen coal of the coal gasification apparatus is greater than its minimum requisite oxygen coal ratio than setting value, and is less than
The oxygen coal ratio that highest can bear；
Further, the operating condition switching switch between two kinds of operating conditions of driving and lifting load is also set up, realizes two kinds of operating conditions
Between handoff functionality；The driving valve position of oxygen flow regulating device is set according to the driving pressure of the coal gasification apparatus and is opened
The driving valve position (i.e. revolving speed) of vehicle flowrate and coal quantity regulating device.
It further, also include warning device, flow alarm function is respectively set in oxygen flow and coal flow, and jump vehicle is chain, real
Oxygen determination throughput and coal feed flow calculate operation oxygen coal ratio, and oxygen coal is arranged than alarm, and it is chain to jump vehicle.
Further, each coal gasification apparatus can have multiple groups 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, multiple groups coal oxygen feed-line can also be corresponded to coal gasification apparatus
One burner.
Further, the coal feed-line can be the fine coal of inert gas conveying, or water-coal-slurry.
Further, the coal quantity regulating device is directed to the difference of pumped (conveying) medium, can use regulating valve, also can be used
Frequency conversion adjustment device for high, coal amount monitoring device select flowmeter.
Further, the oxygen flow regulating device selects regulating valve, and oxygen flow monitoring device selects flowmeter.
Further, the 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..
Compared with the existing technology, 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 simultaneously utilize the online coal quantity measurement value meter of coal feed-line feedback than the setting value of preset value calculation coal amount
The limitation for calculating oxygen flow setting value both can guarantee the stationarity of gasification installation operation, and can also prevent the production of gasification reaction peroxide
It is raw, guarantee the safe operation of gasification installation.
(2) flow of coal is adjusted according to oxygen flow, while checks coal consumption to oxygen amount again, forms closed loop control
System, realize no matter gasification installation driving and parking, lifting load, the problem of gasification furnace instantaneous peroxide will not occur.Entire control
It is fully automated and carries out, safety and stability.
(3) pass through the corresponding driving flow of the split turner condition of operating pressure, valve position and the normal operating work of coal gasification apparatus
The oxygen coal of condition effectively avoids the pressure-raising of coal gasification apparatus than the restriction of, oxygen flow, present in operating pressure wave process
The risk of thermic load fluctuation.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.In
In attached drawing:
Fig. 1 is the control principle schematic diagram of the invention Examples 1 and 2.
Description of symbols: 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 6. gasifier operation pressure of maximum value than 5. gasification furnace oxygen coal of minimum value
7. gasifier operation pressure corresponds to 8. gasification furnace pressure of maximum oxygen load curve and corresponds to oxygen coal than 9. gasification furnace pressure pair of curve
Answer the corresponding single 11. gasification furnace pressure of oxygen pipeline minimum oxygen load curve of single 10. gasification furnace pressure of oxygen pipeline driving flow corresponding
Corresponding 13. gasification furnace of single oxygen conveying pipe line driving valve position curve of single 12. gasification furnace pressure of oxygen pipeline maximum oxygen load curve
The corresponding single coal feed-line control valve position of pressure or corresponding single 14. oxygen of coal feed-line coal slurry revolution speed of gasification furnace pressure
15. 16. warning device of coal amount control unit of flow controlling unit, 17. oxygen system drives to operate normally change-over switch.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
Embodiment 1:
By taking multiinjector coal water slurry gasification technology as an example,
Coal feed-line, that is, water-coal-slurry pipeline A selects coal slurry pump frequency conversion tune by control coal quantity regulating device, the present embodiment
Fast I adjusts coal slurry flow, and water-coal-slurry flow is measured by coal slurry flowmeter II and feeds back the progress of coal-supplying amount control unit 15
Coal amount feedback regulation；
Oxygen conveying pipe line, that is, oxygen pipeline B adjusts oxygen flow by oxygen regulating valve IV, and oxygen flow meter III will
Oxygen flow is measured, and feeds 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 assigned into every oxygen conveying
On pipeline, the total load of gasification furnace is adjusted by total gasification furnace oxygen flow setting value 2, according to the corresponding single oxygen of gasification furnace pressure
The single oxygen pipeline maximum oxygen load curve 11 corresponding with gasification furnace pressure power of pipeline minimum oxygen load curve 10, total oxygen flow setting value
Minimum required total oxygen demand under gasifier operation pressure, and the total oxygen that can bear lower than highest under gasifier operation pressure need to be higher than
Amount.
In addition, corresponding to maximum oxygen according to the corresponding minimum oxygen load curve 6 of gasifier operation pressure and gasification furnace operating pressure
Load curve 7
The oxygen load of the coal gasification apparatus is greater than the minimum requisite oxygen load of corresponding gasifier operation pressure 1 and small
Oxygen load can be born in highest；
The oxygen coal of the coal gasification apparatus is greater than its minimum requisite oxygen coal than changing furnace oxygen coal than minimum value 4 than setting value,
And the oxygen coal that can bear less than highest compares maximum value than i.e. gasification furnace oxygen coal.
When driving, the oxygen system driving of oxygen conveying pipe line operates normally change-over switch 17 and goes to driving operating condition, first
According to the corresponding single oxygen conveying pipe line driving valve position curve 12 of gasification furnace pressure, the corresponding single coal feed-line coal slurry of gasification furnace pressure
Revolution speed 13 sets the driving valve position of oxygen regulating valve IV and the driving revolving speed of coal slurry pump I, while according to gasification furnace pressure pair
The oxygen coal for answering oxygen coal more given than curve 8 starts to throw coal throwing oxygen and gasification furnace igniting than setting value.By gasification furnace control after throwing coal throwing oxygen
System processed is set automatically, according to the anti-of the corresponding single oxygen pipeline driving flow 9 of the gasification furnace pressure of oxygen regulating valve IV and oxygen flow
Feedback adjusts and the feedback regulation of coal amount, stablizes driving coal amount and oxygen amount.
It drives successfully and after stability of flow, the switching of the operating condition 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 variation of gasification furnace load.
During entire driving and lifting load, the oxygen flow of the total oxygen demand of gasification furnace, single oxygen device feed-line is divided equally
It is not limited by the oxygen amount load of total oxygen load of gasification furnace and single oxygen conveying pipe line, oxygen coal compares so as to see who is superior than the oxygen coal by gasification furnace
Limitation.Entire to drive, lifting load process safety is stablized.
In the course of work, realizes that flow alarm function is respectively set in oxygen flow and coal flow by warning device 16, jump vehicle and connect
Lock, actual measurement oxygen flow and coal feed flow calculate operation oxygen coal ratio, and oxygen coal is arranged than alarm, and it is chain to jump vehicle.
Embodiment 2:
By taking powdered coal pressuring gasified technology as an example,
The coal of fine coal pipeline powder adjusts angle valve I to adjust fine coal flow, fine coal densitometer and speed and combination and constitute fine coal
Measured fine coal flow feedback Limestone control unit is carried out the feedback regulation of coal amount by Flow Measuring System II.
Oxygen pipeline B adjusts oxygen flow by oxygen regulating valve IV, and it is anti-that oxygen flow meter III will measure oxygen flow
The feedback regulation of oxygen flux control unit of feeding progress oxygen flow.
When driving, the oxygen system of oxygen conveying pipe line drives to operate normally change-over switch 17 to be to drive and lifting load
Operating condition switching switch goes to driving operating condition, first according to the corresponding single oxygen conveying pipe line driving valve position curve 12 of gasification furnace pressure,
The corresponding single coal feed-line control valve position 13 of gasification furnace pressure sets the driving valve position of oxygen regulating valve IV and fine coal adjusts angle
Valve I valve position, while oxygen coal is corresponded to according to gasification furnace pressure and gives oxygen coal than setting value than curve 8, start to throw coal throwing oxygen and gasification
Furnace igniting.Throw coal and throw and set gasifier control system system automatically after oxygen, according to the corresponding list 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, stablizes driving coal amount and oxygen amount.
It drives successfully and after stability of flow, the driving of oxygen conveying pipe line 17 is turned with the operating condition switching switch operated normally
To accidental conditions, the oxygen flow setting value 2 for adjusting gasification furnace reaches the variation of gasification furnace load.
Drive and during lifting load entire, gasification furnace total oxygen demand, the oxygen amount of single oxygen device feed-line respectively by
Total oxygen load of gasification furnace and single oxygen conveying pipe line oxygen amount load limitation, oxygen coal ratio are compared so as to see who is superior limitation by gasification furnace oxygen coal.It is whole
A driving, lifting load process safety are stablized.
For coal gasification, seam is adjusted using adjusting angle valve, and for coal water slurry gasification, seam adjusting is adopted
With coal slurry pump rotational speed regulation, this is the coal quantity regulating device under two kinds of gasification modes.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (3)
1. a kind of coal oxygen conveyance control method of coal gasification apparatus, it is characterised in that including following content:
The oxygen flow setting value of single oxygen conveying pipe line is set, while oxygen coal is corresponded to according to the pressure of coal gasification apparatus and compares curve
Oxygen coal is given than setting value, so that oxygen flow is reached oxygen by oxygen flow regulating device according to the oxygen flow measured value of feedback
Throughput setting value；
By the oxygen flow measured value of single oxygen conveying pipe line compared with oxygen flow setting value after, set after taking large values divided by oxygen coal ratio
Coal amount setting value of the definite value as corresponding coal feed-line, while definite value is measured to pass through coal quantity regulating device according to the coal of feedback
Coal amount is set to reach coal amount setting value；
Meanwhile after the coal measurement definite value of corresponding coal feed-line is multiplied with oxygen coal than setting value, as oxygen conveying pipe line
The upper limit value of oxygen flow adjusts oxygen flow by oxygen flow regulating device and is no more than this upper limit value；
The oxygen coal of the coal gasification apparatus is greater than its minimum requisite oxygen coal than i.e. change furnace oxygen coal than minimum value than setting value, and is less than
The oxygen coal that highest can bear compares maximum value than i.e. gasification furnace oxygen coal；
According to the online oxygen conveying pipe line number amount of gasification furnace, the total oxygen demand of gasification furnace is assigned into every oxygen conveying pipe line
On；Total oxygen load of gasification furnace is adjusted by total oxygen flow setting value, and total oxygen flow setting value need to be higher than gasification furnace and grasp
Make minimum required total oxygen demand under pressure, and the total oxygen demand that can bear lower than highest under gasifier operation pressure；
The oxygen coal of gasification furnace is chosen than setting value according to the operating pressure of gasification furnace, and gasification furnace oxygen coal ratio need to be higher than coal gasification apparatus
Minimum requisite oxygen coal ratio, and the oxygen coal ratio that can bear lower than the highest of coal gasification apparatus；
The oxygen flow of every oxygen conveying pipe line need to be higher than coal gasification apparatus operating pressure under single coal feed-line it is minimum
Required oxygen amount, and the oxygen amount that can bear lower than the highest of single coal feed-line under the operating pressure of coal gasification apparatus；
Under driving operating condition, driving valve position and driving flow are set according to the operating pressure of coal gasification apparatus；After driving successfully, lead to
It crosses and drives to be switched under normal operating operating condition the handoff functionality between normal operating operating condition, carry out the load of coal gasification apparatus
It adjusts.
2. a kind of coal oxygen conveying control device of coal gasification apparatus, including at least one set of coal oxygen feed-line, one group of coal oxygen
Feed-line includes a coal feed-line and a corresponding oxygen conveying pipe line；The coal feed-line is equipped with coal amount tune
Regulating device and coal amount monitoring device configure oxygen flow regulating device and oxygen flow monitoring device on oxygen conveying pipe line,
It is characterized in that: further including
Oxygen flux control unit, with oxygen flow setting value, oxygen flow measured value, coal measure definite value, oxygen coal compares setting value
For input, oxygen flow is made by oxygen flow regulating device in conjunction with the oxygen flow measured value that oxygen flow monitoring device is fed back
Reach oxygen flow setting value；Wherein, as oxygen flow setting value after coal measurement definite value being multiplied with oxygen coal than setting value
Upper limit value；
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 be input, oxygen flow setting value is compared with oxygen flow measured value, take wherein smaller value divided by oxygen coal ratio
Setting value makes coal by coal quantity regulating device combining the coal of coal amount monitoring device feedback to measure definite value as coal amount setting value
Amount reaches coal amount setting value；
The oxygen load of the coal gasification apparatus is greater than the minimum requisite oxygen load of corresponding operating pressure, and can bear less than highest
Oxygen load；In addition, the oxygen coal of the coal gasification apparatus is greater than its minimum requisite oxygen coal ratio than setting value, and can hold less than highest
The oxygen coal ratio received；
It also sets up driving and operates normally the operating condition switching switch between two kinds of operating conditions, according to the driving pressure of the coal gasification apparatus
Power sets driving valve position, that is, driving flow of oxygen flow regulating device and the driving valve position of coal quantity regulating device or pump is driven
Revolving speed；
The coal gasification apparatus can be various types of gasification furnaces, such as coal water slurry gasification, powdered coal pressuring gasified, broken coal fluidized bed gas
Change, crushed coal pressure gasifying.
3. the coal oxygen conveying control device of coal gasification apparatus according to claim 2, it is characterised in that: also comprising alarm dress
It sets, flow alarm function is respectively set in oxygen flow and coal flow, and oxygen coal is arranged than alarm.
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| 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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| 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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|---|---|---|---|---|
| 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 |
| 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 |
| 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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| CN1834209A (en) * | 2006-04-13 | 2006-09-20 | 魏日新 | Median automatic selection control method of powdered coal pressuring gasified oxygen stream |
| CN202025238U (en) * | 2011-01-07 | 2011-11-02 | 水煤浆气化及煤化工国家工程研究中心 | Oxygen-coal-ratio automatic control system of powdered coal pressurizing and gasifying device |
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