CN107720793A - A kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system - Google Patents
A kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system Download PDFInfo
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- CN107720793A CN107720793A CN201711047313.2A CN201711047313A CN107720793A CN 107720793 A CN107720793 A CN 107720793A CN 201711047313 A CN201711047313 A CN 201711047313A CN 107720793 A CN107720793 A CN 107720793A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The present invention relates to a kind of monitoring system of aluminum oxide decomposer intermediate temperature drop system, including PH induction modules, temperature sense module, control module, display module and memory module, PH induction modules are used to collect the pH value data of the recirculated water of heat exchanger circulating water intake and circulating water outlet and are transferred to control module, temperature sense module is used to collect the temperature data of the recirculated water of heat exchanger circulating water intake and circulating water outlet and is transferred to control module, control module receives PH induction modules, the data and the data to receiving that temperature sense module transfer comes carry out computing and contrast to obtain analysis result, and instructed according to analysis result to display module output services, the analysis result of display module display controller, memory module is used to store control module operation result and the data received；Realization is monitored in real time to middle cooling system, is accomplished to find that decomposed solution leakage and heat exchanger block in time, is avoided the extension of accident.
Description
Technical field
The present invention relates to alumina decomposition process monitoring technical field, and in particular to a kind of aluminum oxide decomposer intermediate temperature drop
The monitoring system and its monitoring method of system.
Background technology
In aluminum i ndustry production, it is often necessary to aluminum oxide is decomposed, in the decomposable process of aluminum oxide, it is necessary to decomposing
Liquid is cooled, and the intermediate temperature drop system of decomposer is a very important step during decomposed solution is cooled, and is now asked if this is walked out of
Topic, the influence to subsequent production is very big, and existing intermediate temperature drop system typically carries out heat energy friendship using cold water in heat exchanger
Change, the heat transfer in decomposed solution is cooled into cold water.But in process of production, due to the damage of equipment, often
Cause decomposed solution leaching and can not be found in time, cause decomposed solution largely to seal in the cold water for carrying out heat exchange, cause
Cold water is contaminated, so as to cause the easy fouling and clogging of pipeline, and then has influence on the heat exchange of the heat exchanger of whole intermediate temperature drop system
Effect.
The content of the invention
The present invention provides a kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system, solves oxidation
The decomposed solution leaching of intermediate temperature drop system in aluminium decomposable process and the problem of can not be found in time.
The present invention is achieved through the following technical solutions：A kind of monitoring system of aluminum oxide decomposer intermediate temperature drop system
System, including PH induction modules, temperature sense module, control module, display module and memory module, the PH induction modules difference
For the recirculated water of collecting heat exchanger heat exchanger circulating water intake and circulating water outlet pH value data and be transferred to the control
Module, the temperature sense module are respectively used to collect the recirculated water of heat exchanger heat exchanger circulating water intake and circulating water outlet
Temperature data is simultaneously transferred to the control module, and the control module receives the PH induction modules, temperature sense module transfer
The data and the data to receiving carry out computing comparative analysis, and are transferred to the display mould according to obtained analysis result
Block output services instruct, the analysis result of the display module display controller, and the memory module is used to store the control
The result of module arithmetic and the data received.
Further, the control module is the single-chip microcomputer using arm processor as core, and the memory module is SD storages
Card, the external SD memory cards of single-chip microcomputer, the PH induction modules are PH sensor, and the temperature sense module is two
Temperature sensor, the temperature sensor are respectively arranged in heat exchanger circulating water intake and circulating water outlet, the display module
Including display and audible-visual annunciator, the display is used for the data for showing that the control module transmission comes, the acousto-optic report
Alert device is used to send abnormal alarm.
Further, in addition to flow velocity induction module and flow control module, the flow velocity induction module are logical for collecting
The flow velocity for the recirculated water crossed in heat exchanger is simultaneously transferred to the control module, and the flow velocity induction module is flow sensor, institute
Stating flow control module includes flow control valve, and the flow control valve is used for the flow velocity for controlling recirculated water, the control module
It is additionally operable to be controlled the working condition of the flow control module according to the data that flow velocity induction module is collected.
A kind of monitoring method of the monitoring system of aluminum oxide decomposer intermediate temperature drop system, step are as follows：
1) control module is preset：The control module presets pH value normal range (NR) and temperature gap normal range (NR), the control
First PH difference that molding block presets the recirculated water of heat exchanger circulating water intake and circulating water outlet is 0；
2) Data Collection：The PH induction modules, temperature sense module collect heat exchanger circulating water intake and circulation respectively
The temperature value of the recirculated water of the pH value of the recirculated water of water out, heat exchanger circulating water intake and circulating water outlet；
3) data operation：The control module calculates the real-time of the recirculated water of heat exchanger circulating water intake and circulating water outlet
PH differences, calculate the real time temperature difference of the recirculated water of heat exchanger circulating water intake and circulating water outlet, and by pH value, temperature
Value, real-time PH differences are stored into the memory module；
4) comparative analysis：The controller judges the pH value of heat exchanger circulating water outlet whether in pH value normal range (NR),
Judge whether the real-time PH differences of the recirculated water of heat exchanger circulating water intake and circulating water outlet are poor more than the PH of upper one calculating
Whether value, judge the real time temperature difference of recirculated water of heat exchanger circulating water intake and circulating water outlet in the normal model of temperature gap
In enclosing；
5) presentation of information：According to the comparative analysis result of step 4), if a) pH value of heat exchanger circulating water outlet is in pH value
In normal range (NR), then normal signal is shown, if the pH value of heat exchanger circulating water outlet, not in pH value normal range (NR), display is let out
Reveal signal；B) if the real-time PH differences of the recirculated water of heat exchanger circulating water intake and circulating water outlet calculate no more than upper one
PH differences, then show stabilization signal, if the real-time PH differences of the recirculated water of heat exchanger circulating water intake and circulating water outlet are more than
The PH differences of a upper calculating, then show and deteriorate signal；C) reality of the recirculated water of heat exchanger circulating water intake and circulating water outlet
When temperature gap in temperature gap normal range (NR), then normal signal is exported, if heat exchanger circulating water intake and circulating water outlet
Recirculated water real time temperature difference not in temperature gap normal range (NR), then export jam signal.
Further, the control module is also preset with pH value abnormal ranges, and the pH value abnormal ranges are divided into three ranks
Section, the first stage be emergency phase, it is necessary to immediately treat, second stage is severe stage, it is necessary to handle as early as possible, and the phase III is
In the general stage, it can be reprocessed when having plenty of time, if the pH value of heat exchanger circulating water outlet is in pH value abnormal ranges, root
Corresponding processing information is shown according to the stage residing for pH value.
Further, the first of the recirculated water of the also default heat exchanger circulating water intake of the control module and circulating water outlet
Individual temperature gap is 0, if the real time temperature difference of the recirculated water of heat exchanger circulating water intake and circulating water outlet is more than upper one
The flow velocity of the temperature gap of calculating, then the control module control flow control valve increase recirculated water, until heat exchanger follows
The temperature gap of the recirculated water of ring water inlet and circulating water outlet is in again in temperature gap normal range (NR) or circulating water flow
Untill speed reaches the maximum of setting.
Due to taking above-mentioned technical proposal, having the beneficial effect that acquired by the present invention：
A kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system, it is real-time by PH induction modules
The heat exchanger circulating water intake of measurement and the circulating water PH value of circulating water outlet, control module do the pH value of measurement to score
Analysis, judges that pH value whether in pH value normal range (NR), show whether heat exchanger has the conclusion of decomposed solution leaching；Controller heat exchanging
The circulating water PH value of device circulating water intake and circulating water outlet ask difference to obtain real-time PH differences, and by real-time PH differences with it is upper
One PH differences contrast being calculated, obtains the conclusion of decomposed solution leaching development；Supervised in real time by temperature sense module
The temperature value of the recirculated water of heat exchanger circulating water intake and circulating water outlet is controlled, control module asks temperature value difference to obtain real-time temperature
Difference is spent, and real time temperature difference is analyzed, judges that temperature gap whether in temperature gap normal range (NR), is drawn
The conclusion whether heat exchanger blocks；Display module shows obtained conclusion, employee by display module can intuitively
The situation of intermediate temperature drop system is solved, middle cooling system is monitored in real time, accomplishes to find decomposed solution leakage and heat exchange in time
Device blocks, and avoids the extension of accident.
Brief description of the drawings
Fig. 1 is that a kind of monitoring system of aluminum oxide decomposer intermediate temperature drop system of the present invention and its framework of monitoring method show
It is intended to；
Wherein, 1- control modules, 2-PH induction modules, 3- temperature sense modules, 4- flow velocity induction modules, 5- show mould
Block, 6- memory modules, 7- flow control modules.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It refer to shown in Fig. 1, a kind of monitoring system of aluminum oxide decomposer intermediate temperature drop system, including heat exchanger, heat exchange
Device is provided with circulating water pipe and decomposes liquid pipe, and circulating water pipe is provided with circulating water intake and circulating water outlet.Among aluminum oxide decomposer
The monitoring system of cooling system also includes PH induction modules 2, temperature sense module 3, flow velocity induction module 4, flow control module
7th, control module 1, display module 5 and memory module 6.Control module 1 includes the single-chip microcomputer using arm processor as core, storage
Module 6 includes SD memory cards, the external SD memory cards of single-chip microcomputer, and PH induction modules 2 include PH sensor, and temperature sense module 3 is wrapped
Two temperature sensors are included, temperature sensor is respectively arranged in circulating water intake and circulating water outlet, and display module 5 includes display
Device and audible-visual annunciator, flow velocity induction module 4 include flow sensor and flow control valve.PH induction modules 2 are respectively used to receive
The pH value data of the recirculated water of collection circulating water intake and circulating water outlet are simultaneously transferred to control module 1, and temperature sense module 3 is used for
Collect the temperature data of the recirculated water of circulating water intake and circulating water outlet and be transferred to control module 1, flow velocity induction module 4 is used
In the flow velocity collected by the recirculated water in heat exchanger and it is transferred to control module 1.Flow control module 7 is used to receive control mould
Work order that block 1 is sent and the flow velocity that recirculated water is controlled according to instruction, control module 1 receive PH induction modules 2, temperature sense
The data and the data to receiving that module 3 and flow sensor transmission come carry out computing and contrast to obtain analysis result, and according to
Analysis result sends work order to display module 5 and flow control module 7, and the transmission of the receive and control module 1 of display module 5 comes
Work order simultaneously works according to work order, and memory module 6 is used to store the operation result of control module 1 and the number received
According to.
A kind of monitoring method of the monitoring system of aluminum oxide decomposer intermediate temperature drop system, step are as follows：
1) control module 1 is default：It is abnormal that control module 1 presets pH value normal range (NR), temperature gap normal range (NR) and pH value
Scope, pH value abnormal ranges are divided into three phases, the first stage be emergency phase, it is necessary to immediately treat, second stage is serious
Stage, the phase III was the general stage, can be reprocessed when having plenty of time, it is necessary to handle as early as possible, the preset loop water of control module 1
First PH difference of the recirculated water of import and circulating water outlet is 0, and control module 1 goes back preset loop water inlet and recirculated water goes out
First temperature gap of the recirculated water of mouth is 0.
2) Data Collection：PH induction modules 2, temperature sense module 3 collect circulating water intake and circulating water outlet respectively
The temperature value of the recirculated water of the pH value of recirculated water, circulating water intake and circulating water outlet, flow sensor is collected to follow in heat exchanger
The flow speed value of ring water.
3) data operation：Control module 1 calculates the real-time PH differences of the recirculated water of circulating water intake and circulating water outlet, meter
Calculate the real time temperature difference of the recirculated water of circulating water intake and circulating water outlet, and by pH value, temperature value, real-time PH differences, reality
When temperature gap be stored into memory module 6.
4) comparative analysis：Controller judges that the pH value of circulating water outlet whether in pH value normal range (NR), judges recirculated water
Whether the real-time PH differences of the recirculated water of import and circulating water outlet are more than the PH differences of upper one calculating, judge circulating water intake
Whether the real time temperature difference with the recirculated water of circulating water outlet is in temperature gap normal range (NR).
5) presentation of information：According to the comparative analysis result of step 4), if a) pH value of circulating water outlet is in the normal model of pH value
In enclosing, then normal signal is shown, if the pH value of circulating water outlet shows leakage signal not in pH value normal range (NR), and
The three phases of pH value abnormal ranges according to residing for pH value, show corresponding processing information；If b) circulating water intake and circulation
The real-time PH differences of the recirculated water of water out are not more than the PH differences of upper one calculating, then stabilization signal are shown, if recirculated water enters
The real-time PH differences of the recirculated water of mouth and circulating water outlet are more than the PH differences of upper one calculating, then show and deteriorate signal；C) follow
In temperature gap normal range (NR), then output is normal believes the real time temperature difference of the recirculated water of ring water inlet and circulating water outlet
Number, it is defeated if the real time temperature difference of the recirculated water of circulating water intake and circulating water outlet is not in temperature gap normal range (NR)
Go out jam signal；D) if the real time temperature difference of the recirculated water of circulating water intake and circulating water outlet is more than the temperature of upper one calculating
Difference is spent, then the flow velocity of the coutroi velocity control valve of control module 1 increase recirculated water, until circulating water intake and circulating water outlet
Untill the temperature gap of recirculated water is in temperature gap normal range (NR) again or recirculated water flow velocity reaches the maximum of setting.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, the equal change completed or modification change under the technical spirit suggested by all present invention, all should belong to
Cover the scope of the claims in the present invention.
Claims (6)
- A kind of 1. monitoring system of aluminum oxide decomposer intermediate temperature drop system, it is characterised in that：Including PH induction modules, temperature sense Module, control module, display module and memory module are answered, the PH induction modules are respectively used to collect heat exchanger circulating water intake With the pH value data of the recirculated water of circulating water outlet and be transferred to the control module, the temperature sense module is respectively used to receive The temperature data of the recirculated water of collecting exchanger circulating water intake and circulating water outlet is simultaneously transferred to the control module, the control Module receives the PH induction modules, the data that temperature sense module transfer comes and the data to receiving and carries out computing to score Analysis, and the display module output services are transferred to according to obtained analysis result and instructed, the display module display controller Analysis result, the memory module is used for the data that store the result of the control module computing and receive.
- A kind of 2. monitoring system of aluminum oxide decomposer intermediate temperature drop system according to claim 1, it is characterised in that：Institute It is the single-chip microcomputer using arm processor as core to state control module, and the memory module is SD memory cards, the external institute of single-chip microcomputer State SD memory cards, the PH induction modules are PH sensor, and the temperature sense module is two temperature sensors, the temperature Sensor is respectively arranged in heat exchanger circulating water intake and circulating water outlet, and the display module includes display and sound and light alarm Device, the display are used for the data for showing that the control module transmission comes, and the audible-visual annunciator is used to send abnormal alarm.
- A kind of 3. monitoring system of aluminum oxide decomposer intermediate temperature drop system according to claim 1, it is characterised in that：Also Including flow velocity induction module and flow control module, the flow velocity induction module is used to collect by the recirculated water in heat exchanger Flow velocity is simultaneously transferred to the control module, and the flow velocity induction module is flow sensor, and the flow control module includes stream Fast control valve, the flow control valve are used for the flow velocity for controlling recirculated water, and the control module is additionally operable to sense mould according to flow velocity The data that block is collected are controlled the working condition of the flow control module.
- 4. a kind of monitoring method of aluminum oxide decomposer intermediate temperature drop system, it is characterised in that comprise the following steps：1) control module is preset：The control module presets pH value normal range (NR) and temperature gap normal range (NR), the control mould First PH difference that block presets the recirculated water of heat exchanger circulating water intake and circulating water outlet is 0；2) Data Collection：PH induction modules, temperature sense module collect heat exchanger circulating water intake and circulating water outlet respectively The pH value and temperature value of recirculated water；3) data operation：The real-time PH that the control module calculates the recirculated water of heat exchanger circulating water intake and circulating water outlet is poor Value, calculates the real time temperature difference of the recirculated water of heat exchanger circulating water intake and circulating water outlet, and by pH value, temperature value, reality When PH differences be stored into the memory module；4) comparative analysis：The control module judges that the pH value of heat exchanger circulating water outlet whether in normal range (NR), judges to change Whether the real-time PH differences of the recirculated water of hot device circulating water intake and circulating water outlet are more than the PH differences of upper one calculating, judge Whether the real time temperature difference of the recirculated water of heat exchanger circulating water intake and circulating water outlet is in temperature gap normal range (NR)；5) presentation of information：According to the comparative analysis result of step 4), if a) pH value of heat exchanger circulating water outlet is normal in pH value In the range of, then normal signal is shown, if the pH value of heat exchanger circulating water outlet, not in pH value normal range (NR), display leakage is believed Number；B) if the real-time PH differences of the recirculated water of heat exchanger circulating water intake and circulating water outlet are poor no more than the PH of upper one calculating Value, then show stabilization signal, if the real-time PH differences of the recirculated water of heat exchanger circulating water intake and circulating water outlet are more than upper one The PH differences of individual calculating, then show and deteriorate signal；C) the real-time temperature of the recirculated water of heat exchanger circulating water intake and circulating water outlet Difference is spent in temperature gap normal range (NR), then exports normal signal, if heat exchanger circulating water intake and circulating water outlet follow The real time temperature difference of ring water then exports jam signal not in temperature gap normal range (NR).
- A kind of 5. monitoring method of aluminum oxide decomposer intermediate temperature drop system according to claim 4, it is characterised in that：Institute State control module and be also preset with pH value abnormal ranges, the pH value abnormal ranges are divided into three phases, and the first stage is urgent rank Section, it is necessary to immediately treat, second stage be severe stage, it is necessary to handle as early as possible, the phase III is the general stage, can be filled in the time Reprocessed when abundant, if the pH value of heat exchanger circulating water outlet is in pH value abnormal ranges, the stage according to residing for pH value shows Show corresponding processing information.
- A kind of 6. monitoring method of aluminum oxide decomposer intermediate temperature drop system according to claim 4, it is characterised in that：Institute First temperature gap for stating the recirculated water of the also default heat exchanger circulating water intake of control module and circulating water outlet is 0, if changing The real time temperature difference of the recirculated water of hot device circulating water intake and circulating water outlet is more than the temperature gap of upper one calculating, then institute The flow velocity that control module controls the flow control valve increase recirculated water is stated, until heat exchanger circulating water intake and circulating water outlet Recirculated water temperature gap again in the temperature gap normal range (NR) or recirculated water flow velocity reach the maximum that sets as Only.
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| CN201711047313.2A CN107720793A (en) | 2017-10-31 | 2017-10-31 | A kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system |
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| CN201711047313.2A CN107720793A (en) | 2017-10-31 | 2017-10-31 | A kind of monitoring system and its monitoring method of aluminum oxide decomposer intermediate temperature drop system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113485474A (en) * | 2021-07-20 | 2021-10-08 | 沈阳鑫博工业技术股份有限公司 | Multi-protocol temperature controller and control method for aluminum oxide suspension roasting furnace |
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Application publication date: 20180223 |