CN110408436A - A method of shock chamber's state being monitored online using Heisui River pipeline - Google Patents
A method of shock chamber's state being monitored online using Heisui River pipeline Download PDFInfo
- Publication number
- CN110408436A CN110408436A CN201810394199.9A CN201810394199A CN110408436A CN 110408436 A CN110408436 A CN 110408436A CN 201810394199 A CN201810394199 A CN 201810394199A CN 110408436 A CN110408436 A CN 110408436A
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- China
- Prior art keywords
- water discharge
- shock chamber
- black water
- pipeline
- densitometer
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- 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
- C10J3/485—Entrained flow gasifiers
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to a kind of method using Heisui River pipeline on-line monitoring shock chamber's state, the shock chamber including gasification furnace, and the black water discharge pipeline connecting with shock chamber, black water discharge pipeline are equipped with Heisui River flow control valve；Packing density meter on black water discharge pipeline between the black water discharge pipeline interface and Heisui River flow control valve, by densitometer to the density measure of gas-liquid-solid three-phase medium in black water discharge pipeline, the indoor lime-ash state of Quench is monitored according to the measurement result of densitometer；The method of the present invention can monitor the indoor lime-ash state of Quench in real time according to the measurement result of densitometer, so that be conducive to operating technology personnel intervenes the processing indoor lime-ash problem of Quench as early as possible, remove a hidden danger, the deposition of a large amount of lime-ash in shock chamber can be effectively prevented；Meanwhile the measured value of densitometer can enter the DCS system and security control interlock system of gasification furnace, thoroughly eliminate the security risk that synthesis gas scurries into the generation of Heisui River pipeline, realize the essential safety of gasification system operation.
Description
Technical field
The present invention relates to air flow bed bed pulverized coal gasification technology fields, especially a kind of that shock chamber is monitored online using Heisui River pipeline
The method of state.
Background technique
In the coal gasifying process of chilling process, up to 1200 DEG C -1600 DEG C of the high-temperature fusion generated in gasification furnace is grey
Slag and synthesis gas cocurrent enter shock chamber by gasification furnace cinder notch.In shock chamber, the lime-ash of melting under the action of water quenching,
Solidification, rupture, form the particle of different sizes and shapes, and be deposited on shock chamber bottom, and interval is discharged.
Industrial practice the result shows that, for high ash melting point, high ash content inferior raw material coal, when gasification furnace operating condition changes or enter furnace
When coal quality fluctuates, shock chamber often occurs that deslagging is unsmooth, lime-ash adherency, the blocking of black water discharge pipeline, shock chamber's liquid level are big
The problems such as amplitude wave is dynamic, synthesis gas is largely grey with water band, seriously affects the stable operation of gasification furnace.Especially in shock chamber, liquid level is big
During amplitude wave is dynamic, synthesis gas easily scurries into Heisui River pipeline, hence into the black water treatment system for arriving normal pressure, generates larger peace
Full hidden danger.
Currently, due to being high pressure, the condition of high temperature (2-8MPa, 200-300 DEG C) in shock chamber, and gas-liquid-solid three-phase coexists,
Conventional means are difficult to effectively monitor lime-ash state in shock chamber in real time.When in shock chamber lime-ash accumulation to a certain extent, influence it is steady
When running surely, operator can only by virtue of experience be handled, and do not only existed in passive reply situation, and ineffective, be finally forced
Parking, brings larger economic loss to enterprise.
Summary of the invention
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of be monitored online using Heisui River pipeline to swash
The method of cold house's state can carry out real-time effective monitoring to lime-ash state in shock chamber, be the long week of coal gasification shock chamber
Phase stablizes optimization operation and provides guidance.
To achieve the above object, the invention adopts the following technical scheme:
A method of shock chamber's state, the shock chamber including gasification furnace being monitored online using Heisui River pipeline, and swashs with described
The black water discharge pipeline of cold house's connection, the black water discharge pipeline are equipped with Heisui River flow control valve；In the black water discharge pipe
Packing density meter on black water discharge pipeline between line interface and Heisui River flow control valve, by densitometer to black water discharge pipeline
The density measure of middle gas-liquid-solid three-phase medium monitors the indoor lime-ash state of Quench according to the measurement result of densitometer.
Further, the densitometer is installed on the vertical of the black water discharge pipeline adjacent with black water discharge pipeline interface side
On pipeline.
Further, the densitometer selects ray type, condenser type, ultrasonic type or microwave type.
Further, by the DCS system and safety interlock system of the measuring signal input gasification furnace of the densitometer, it is arranged low
The density value of alarm interlocking, low alarm interlocking, high alarm and high alarm；When the density value of densitometer instruction reaches low report
Alert interlocking, DCS system alarm, while interlocking close black water discharge regulating valve, interlocking improve chilled water pump capacity or Quench water flow
The aperture of adjustable valve；When density value reaches low alarm interlocking, DCS system is alarmed, while triggering safety interlock system, gasification furnace
Jump vehicle；When density value reaches, height is alarmed or high alarm, DCS system are alarmed, and lime-ash state is different in prompt operator shock chamber
Often, it need to be handled.
Further, the density value of the low alarm interlocking is 750kg/m3, it is described it is low alarm interlocking density value be
700kg/m3, the density value of the high alarm is 950kg/m3, the density value of the high alarm is 1000kg/m3。
The device have the advantages that as follows:
Since the black water discharge pipeline of shock chamber is directly connected to shock chamber, the medium state and shock chamber in the pipeline of Heisui River
Interior medium state is closely related, directly reflects gas-liquid-solid three-phase in shock chamber and mixes situation.
The present invention can according to the measurement result of densitometer by the density of setting meter on the black water discharge pipeline of shock chamber
It monitors the indoor lime-ash state of Quench in real time, is asked to be conducive to operating technology personnel and intervene the processing indoor lime-ash of Quench as early as possible
Topic, removes a hidden danger, the deposition of a large amount of lime-ash in shock chamber can be effectively prevented.Meanwhile the measured value of densitometer can enter gasification
The DCS system and security control interlock system of furnace thoroughly eliminate the security risk that synthesis gas scurries into the generation of Heisui River pipeline, realize gas
The essential safety of change system operation.
Detailed description of the invention
Fig. 1 is the systematic schematic diagram of gasification furnace.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
Shown in referring to Fig.1, the shock chamber B of gasification furnace A is connected with black water discharge pipeline C, black water discharge pipeline C and shock chamber B company
It connects, and is equipped with Heisui River flow control valve E in black water discharge pipeline C.
Since the black water discharge pipeline C of shock chamber B is directly connected to shock chamber B, the medium in black water discharge pipeline C
State and medium state in shock chamber B are closely related, directly reflect gas-liquid-solid three-phase in shock chamber B and mix situation.
A kind of method using Heisui River pipeline on-line monitoring shock chamber's state of the invention, is by the black water discharge
It is installed on black water discharge pipeline C between the interface (interface being connect with shock chamber B) and Heisui River flow control valve E of pipeline C close
Degree meter D, by densitometer D to the density measure of gas-liquid-solid three-phase medium in black water discharge pipeline C, according to the measurement of densitometer D
As a result the lime-ash state in shock chamber B is monitored.
In the present embodiment, the preferred installation site of densitometer D is arranged in the Heisui River adjacent with black water discharge pipeline C interface side
On the vertical pipeline for putting pipeline C.Densitometer D can select ray type, condenser type, ultrasonic type or microwave type, preferably ray
Formula.
The indicated value of densitometer D has reacted lime-ash state in shock chamber B, provides Operating Guideline to operator.It simultaneously can
The measuring signal of densitometer D is input to the matched DCS system of gasification furnace and safety interlock system, measured according to densitometer D
Density value, high alarm (AH) is set, high alarm (AHH), low alarm interlocking (AL), low alarm interlock (SALL).
When the indicated value of densitometer D reaches the density value of low alarm interlocking (SAL) or low alarm interlocking (SALL), then
Illustrate that the density of material in black water discharge pipeline C is too low, i.e., gaseous phase materials occurs in the pipeline of Heisui River.This shows have synthesis gas to scurry into
Black water discharge pipeline C forms security risk to the black water treatment system in downstream.
When the indicated value of densitometer D reaches the density value of high alarm (AH) or high alarm (AHH), then illustrate that Heisui River is arranged
The density for putting material in pipeline C is excessively high, i.e. lime-ash concentration is excessive.This shows occur a large amount of accumulated slags in shock chamber B, leads to outlet
Solid content increases in Heisui River.
Height alarm (AH), high alarm (AHH), low alarm interlocking (SAL) and low alarm interlock the density value of (SALL)
It can be determined by the pressure, temperature and phase concentration of black water discharge pipeline, by many experiments and repeatedly, verifying obtains the present embodiment
Best setting are as follows: it is low alarm interlocking density value be 750kg/m3, the density value of low alarm interlocking is 700kg/m3, height report
Alert density value is 950kg/m3, the density value of high alarm is 1000kg/m3。
When the indicated value of densitometer D reaches low alarm interlocking (SAL) value 750kg/m3When, DCS system alarm interlocks simultaneously
Close Heisui River flow control valve E, interlocking improves the ability of Quench water pump G and the aperture of Quench Water flow adjusting valve F.
When the indicated value of densitometer D reaches low alarm interlocking (SALL) value 700kg/m3When, DCS system will call the police, simultaneously
Gasification furnace safety interlock system can be triggered, gasification furnace jumps vehicle.
When the indicated value of densitometer D reaches high alarm (AH) value 950kg/m3When, operator is reminded in DCS system alarm
Relevant parameter operation trend is analyzed, shock chamber's B operating condition is paid close attention to, provides tendency judgement.
When the indicated value of densitometer D reaches high alarm (AHH) 1000kg/m3When, then show lime-ash mistake in shock chamber B
It is more, there are the risk factors for the influence long-period stable operations such as occur slugging, deslagging is unsmooth, accumulated slag amount is excessive, operator answers
It takes measures on customs clearance in time, handles the lime-ash state of abnormal state in shock chamber, densitometer D is made to restore normal indicating range.
By the method for aforementioned present invention, the intervention processing indoor lime-ash of Quench of operating technology personnel as early as possible can be helped
Problem is removed a hidden danger, and a large amount of ash depositions in shock chamber are effectively prevent；Can thoroughly eliminate synthesis gas scurries into Heisui River pipeline simultaneously
The security risk of generation realizes the essential safety of gasification system operation.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (5)
1. it is a kind of using Heisui River pipeline on-line monitoring shock chamber's state method, the shock chamber including gasification furnace, and with it is described
The black water discharge pipeline of shock chamber's connection, the black water discharge pipeline are equipped with Heisui River flow control valve；It is characterized by: in institute
Packing density meter on the black water discharge pipeline between black water discharge pipeline interface and Heisui River flow control valve is stated, densitometer pair is passed through
The density measure of gas-liquid-solid three-phase medium in black water discharge pipeline monitors the indoor lime-ash of Quench according to the measurement result of densitometer
State.
2. a kind of method using Heisui River pipeline on-line monitoring shock chamber's state according to claim 1, it is characterised in that:
The densitometer is installed on the vertical pipeline of the black water discharge pipeline adjacent with black water discharge pipeline interface side.
3. a kind of method using Heisui River pipeline on-line monitoring shock chamber's state according to claim 1, it is characterised in that:
The densitometer selects ray type, condenser type, ultrasonic type or microwave type.
4. a kind of method using Heisui River pipeline on-line monitoring shock chamber's state according to claim 1, it is characterised in that:
By the DCS system and safety interlock system of the measuring signal input gasification furnace of the densitometer, low alarm interlocking, low report are set
The density value of alert interlocking, high alarm and high alarm；When the density value of densitometer instruction reaches low alarm interlocking, DCS system
Alarm, while interlocking close black water discharge regulating valve, interlocking improve the aperture of chilled water pump capacity or Quench Water flow adjusting valve；
When density value reaches low alarm interlocking, DCS system is alarmed, while triggering safety interlock system, and gasification furnace jumps vehicle；When density value reaches
Lime-ash abnormal state in operator shock chamber is prompted, need to be handled to height alarm or high alarm, DCS system alarm.
5. a kind of method using Heisui River pipeline on-line monitoring shock chamber's state according to claim 4, it is characterised in that:
The density value of the low alarm interlocking is 750kg/m3, the density value of the low alarm interlocking is 700kg/m3, the high alarm
Density value be 950kg/m3, the density value of the high alarm is 1000kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394199.9A CN110408436A (en) | 2018-04-27 | 2018-04-27 | A method of shock chamber's state being monitored online using Heisui River pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394199.9A CN110408436A (en) | 2018-04-27 | 2018-04-27 | A method of shock chamber's state being monitored online using Heisui River pipeline |
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| Publication Number | Publication Date |
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| CN110408436A true CN110408436A (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810394199.9A Pending CN110408436A (en) | 2018-04-27 | 2018-04-27 | A method of shock chamber's state being monitored online using Heisui River pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395671A (en) * | 2018-11-28 | 2019-03-01 | 南京浦世环境科技发展有限公司 | A kind of bypass monitoring device of gas-liquid-solid phase reaction and its application in carbon dioxide mineral are sealed up for safekeeping |
Citations (3)
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| WO2014070421A1 (en) * | 2012-10-30 | 2014-05-08 | Kellogg Brown & Root Llc | Systems and methods for producing substitute natural gas |
| CN203754659U (en) * | 2014-01-24 | 2014-08-06 | 中石化南京工程有限公司 | Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier |
| CN206063961U (en) * | 2016-08-31 | 2017-04-05 | 西安陕鼓动力股份有限公司 | A kind of gasification furnace usage on black water recovery system |
-
2018
- 2018-04-27 CN CN201810394199.9A patent/CN110408436A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014070421A1 (en) * | 2012-10-30 | 2014-05-08 | Kellogg Brown & Root Llc | Systems and methods for producing substitute natural gas |
| CN203754659U (en) * | 2014-01-24 | 2014-08-06 | 中石化南京工程有限公司 | Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier |
| CN206063961U (en) * | 2016-08-31 | 2017-04-05 | 西安陕鼓动力股份有限公司 | A kind of gasification furnace usage on black water recovery system |
Non-Patent Citations (2)
| Title |
|---|
| 强天驰: "气化炉激冷室液位测量中的信号处理", 《大氮肥》 * |
| 施鹏辉: "水煤浆加压气化装置 DCS 系统的设计与应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395671A (en) * | 2018-11-28 | 2019-03-01 | 南京浦世环境科技发展有限公司 | A kind of bypass monitoring device of gas-liquid-solid phase reaction and its application in carbon dioxide mineral are sealed up for safekeeping |
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Application publication date: 20191105 |
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