CN101844157A - Integrated roll line control-based hot rolling cooling water control method and system - Google Patents
Integrated roll line control-based hot rolling cooling water control method and system Download PDFInfo
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- CN101844157A CN101844157A CN201010161820A CN201010161820A CN101844157A CN 101844157 A CN101844157 A CN 101844157A CN 201010161820 A CN201010161820 A CN 201010161820A CN 201010161820 A CN201010161820 A CN 201010161820A CN 101844157 A CN101844157 A CN 101844157A
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Abstract
The invention provides an integrated roll line control-based hot rolling cooling water control method and system. The control system comprises a roll line information obtaining unit, a cooling water control unit and a communication unit, wherein the roll line information obtaining unit is used to obtain the roll line data information of a hot rolling production line; the cooling water control unit is used to receive the roll line data information of the roll line information obtaining unit and control the quantity of cooling water according to the roll line data information; and the communication unit is used to transmit the roll line data information of the hot rolling production line which is obtained by the roll line information obtaining unit to the cooling water control unit. The system of the invention can transmit the tracking information signals of rolled pieces on the hot rolling production line and the predicted quantity of cooling water to the cooling water control unit and provide feedforward control information for the speed control equipment such as frequency control devices and fluid couplings and the throttle equipment such as adjusting valves, thus the frequency control and energy-saving, or throttling and energy-saving of turbid cooling water and laminar cooling water can be realized under the condition of ensuring the technological requirements.
Description
Technical field
The present invention relates to the metallurgy industry field, relate in particular to the metallurgy industry hot rolling mill based on integrated roll line control cooling water control method and system.
Background technology
The water treatment system of hot rolling mill mainly comprises turbid circulating water system, laminar cooling water system, clean circulation, supporting pipe network and and the supporting electric power instrument automatic control system of water treatment.The hot rolling cooling water mainly contains following characteristics: the one, and water yield flow is big; The 2nd, the requirement pressure stability; The 3rd, the water yield changes greatly, and rolling line all is interrupted water spray cooling with the water spot major part, and when rolling different rolled plate kind, rolling line is also different to the demand of total water-supply quantity; The 4th, the automatization level of hot rolling mill is generally all very high.
In present hot rolling mill, the automation control system of water treatment system and steel rolling production-line is two independently systems, water treatment system supplies water to rolling line, and the passive water processing system that makes of rolling line does not have real-time and dynamic data communication and incorporate control for the water that comes between them.Describe below with reference to the hot-rolling laminar cooling water system of the hot rolling sewage circulating water system of Fig. 1 prior art and Fig. 2 prior art situation the cooling water system of prior art.
As shown in Figure 1, turbid recirculated cooling water is mainly used in the direct cooling of each equipment.Turbid circulating water generally is divided into high pressure turbid circulating water and low pressure recycle water two parts in hot rolling mill, and the low pressure turbid circulating water is mainly equipment such as roller-way 21, dephosphorize by high pressure water 22, Coil Box 23, coiling machine 24 cooling water is provided; The high pressure turbid circulating water provides cooling water for roll 25, backing roll 26 and the rolled piece of roughing unit 18 and mm finishing mill unit 19.Water after roughing unit 18 and mm finishing mill unit 19 and its equipment use not only water temperature raises, and contains a large amount of iron scales and waste oil.Water after the user uses flows into sluice 10, enters cyclone sediment pond 11 through sluice 10.After cyclone sediment pond 11 precipitations are removed block iron scale, part water pressurizes reuses as sluice 10 flushing cinder water with slag-washing-out pump group 12, another part is promoted to horizontal flow basin 14 with cyclone well elevator pump group 13 and carries out two stage treatment, removes Powdered iron scale and oil in the water.Deliver to turbid ring regulating reservoir 15 then, wherein a part of water filters with being pumped to filter 16, utilizes overbottom pressure to send into cooling tower 17 coolings again, and another part water is directly with being pumped to cooling tower 17 coolings.Cooling tower 17 water outlets enter absorbing well, absorption well 20, pressurize after supporting pipe network water supply pipeline uses according to technological requirement for rolling line equipment with high pressure turbid circulating water supply-water pump 28 and low pressure turbid circulating water supply-water pump 29 pump groups.
The hot rolling sewage circulating cooling water system is not taked practicable conservation measures at present, supply-water pump supplies water to rolling line by fixed pressure and flow, when the water supply total amount makes water consumption greater than rolling line, high pressure turbid circulating water and low pressure turbid circulating water directly or directly be discharged into sluice through voltage stabilizing overflow valve 27 and be back to cyclone well and reflux and go back, the energy consumption of turbid ring water system is very serious.
Shown in accompanying drawing 2 (laminar cooling water process chart).Laminar cooling system provides rolled piece upper and lower surface cooling water and side spray cleaning water for rolling line mm finishing mill unit 19 back coiling machines 24 preceding laminar flow cooling devices 25.Technological process is that the water after rolling line laminar flow cooling device uses enters hot well 27 through laminar flow iron sheet ditch 26, adding force feed filter 29 with hot well supply-water pump group 28 filters, water conservancy after the filtration directly goes up cooling tower 30 coolings with overbottom pressure, cooled water flows into absorbing well, absorption well 31, add force feed workshop inner laminar flow cooling elevated tank 33 with laminar flow cooling supply-water pump group 32 again, use for the cooling of rolling line laminar flow by laminar flow cooling elevated tank 33.Also have a small part to provide side spray water for rolling line by laminar flow cold side spray pump group 34 pressurization backs.Laminar flow cooling supply-water pump group 32 is continual to 33 water supply of laminar flow cooling elevated tank, when having rolled piece to pass through on the laminar flow runout table, laminar flow cooling collector pipe 35 is opened up and down, behind the water cooling rolled piece of collector pipe 35 ejections, flows back to hot well 27 through laminar flow iron sheet ditch 26 up and down; When not having rolled piece to pass through on the laminar flow runout table 36, laminar flow cooling collector pipe 35 closes up and down, the water that laminar flow cooling supply-water pump group 32 is fed to laminar flow cooling elevated tank 33 flows back to absorbing well, absorption well 31 through elevated tank overflow pipe 37, laminar flow side water spray is as the same, when rolled piece passes through, side water spray is opened, and when not having rolled piece when not needing to cool off, the side water spray is closed.Caused the very big waste of the energy like this.
As seen, hot-rolling laminar cooling water system major part is not all taked any conservation measures at present, and energy consumption is very serious, has hot rolling mill laminar flow cooling seldom to adopt conservation measures, scheme to mainly contain a kind of employing water tank scheme in parallel both at home and abroad.Additional water tank scheme in parallel is at the other supply tank in parallel of elevated tank, utilize the laminar flow cooling device do not spray water the cooling the gap to cistern water supply in parallel, lay in certain rate of water make-up and in laminar flow cooling device water spray, supply water, adopt lower-powered water pump also constantly to supply water in the gap of water spray.The scheme of additional water tank in parallel need add a very large water tank at factory building, and this scheme is difficult to satisfy the not requirement of cooling capacity of different rolled piece specification kind correspondence.
In sum, so just brought following problem:
1. the real-time of communication and monitoring is poor, and the automation control system both sides information of water treatment system and steel rolling production-line can not be shared.Both sides' communication is by manual telephone system or intercom system, and rolling line can not be monitored the dynamic ruuning situation of water treatment system in real time; Water treatment system can not be understood rolling line real-time and dynamic ruuning situation by real time monitoring.When a side breaks down or reports to the police the opposing party when influential, failure alarm signal can not be real-time passes to the opposing party.And, the erroneous judgement that causes the accident easily, handle untimely and the accident extension because middle artificial link is many, and information transfer time is long, and not only cause the very big waste of manpower and materials, make troubles and potential hidden danger to safety in production simultaneously;
2. can't realize integrated control, water supply institute's confession as required, the energy and water waste are serious.Water treatment system supplies water to rolling line according to fixed pressure and flow, and when water-supply quantity made water consumption greater than rolling line, unnecessary water supply was gone back through sluice or overflow pipe backflow, has caused the huge waste at the energy and water source.
3 because the water yield changes greatly, only water pump is carried out the speed governing of conventional pressure closed loop control or the fluctuation of throttling conservation measures meeting build-up of pressure, can not satisfy manufacturing technique requirent.
Summary of the invention
Technical problem to be solved by this invention provides a kind of based on integrated roll line control hot rolling cooling water control method and system, better the rolling line cooling water inflow is controlled, and is had the characteristics of energy savings.
In order to solve the problems of the technologies described above, the invention provides a kind ofly based on integrated roll line control hot rolling cooling water control system, described control system comprises:
Rolling line information acquisition unit is used to obtain the rolling line data message of hot rolling line,
The cooling water control unit is used to receive the rolling line data message of rolling line information acquisition unit, according to described rolling line data message cooling water inflow is controlled;
Communication unit is used for sending the rolling line data message of the hot rolling line of the described acquisition of described rolling line information acquisition unit to described cooling water control unit.
Preferably, described cooling water control unit further comprises:
Processing unit is used for obtaining the moment that real-time cooling water inflow and cooling water inflow change according to described rolling line data message;
Control module is used for sending control signal according to the moment that described real-time cooling water inflow and cooling water inflow change to performance element.
Preferably, described performance element is supply-water pump and is installed in throttling or speed control device on the supply-water pump, described control module is further used for sending control signal to described throttling or speed control device, thereby regulates output by the rotating speed of control supply-water pump or the aperture of exit of pump valve.
Preferably, described throttling or speed control device are a kind of in frequency converter, fluid power coupling apparatus, magnetic coupling, electromagnetic adjustable speed motor, the control valve, perhaps control valve and other a kind of combination.
Preferably, described cooling water control unit is further used for receiving water system information, and according to described rolling line data message and water system information the cooling water amount is controlled.
Preferably, described cooling water control unit also comprises the control picture that is used for display control information, and described cooling water control unit controls picture embeds in the control picture of rolling line automated system, or sets up separately in the control picture of rolling line automated system.
In order to solve the problems of the technologies described above, it is a kind of based on integrated roll line control hot rolling cooling water control method that the present invention also provides, and described method comprises:
Obtain rolling line information;
Send the rolling line information of described acquisition to the cooling water control unit by communication unit;
The cooling water control unit is controlled the cooling water amount according to described rolling line information.
Preferably, the cooling water control unit is controlled the cooling water amount according to described rolling line information, comprising:
Obtain cooling water inflow according to described rolling line data message;
Send control signal according to described cooling water inflow to performance element.
Preferably, described performance element is supply-water pump and is installed in throttling or speed control device on the supply-water pump, described cooling water control unit sends control signal to described throttling or speed control device, thereby regulates output by the rotating speed of control supply-water pump or the aperture of supply-water pump outlet valve; Described throttling or speed control device are a kind of in frequency converter, fluid power coupling apparatus, magnetic coupling, electromagnetic adjustable speed motor, the control valve, perhaps control valve and other a kind of combination.
Preferably, described cooling water control unit further receives water system information, and according to described rolling line data message and water system information the cooling water amount is controlled.
Method and system provided by the present invention, utilize means of communication to make roll line control system and water treatment controlling system become an incorporate automatic control system, rolled piece can be passed to the cooling water control unit at tracking signal, the forecast cooling water inflow of rolling line, for throttle device such as speed control device such as frequency control, fluid-flywheel clutch and control valve provide FEEDFORWARD CONTROL information, it is energy-conservation to make turbid ring cooling water, laminar cooling water be implemented in the energy-saving and frequency-variable or the throttling that guarantee under the technological requirement; The real-time of communication and monitoring is good, makes things convenient for production operation, enhance productivity, and the processing time of shortening accident greatly, thus avoid the expansion of accident; By integrated control, can move on to steel rolling production-line to the monitoring function of water treatment system, realize the water treatment unmanned, reduce operating personnel's staffing establishment, save human cost; Adopt method and system of the present invention, the rolling line operating personnel can directly intervene the rotating speed of water pump, the unlatching quantity of water pump and the aperture of exit of pump valve, thereby control the pressure of rolling line cooling water more accurately, and then the cooldown rate of more stable control cooling water, optimize rolling model, improve the quality of products.
Description of drawings
Fig. 1 is the hot rolling sewage circulating water system figure of prior art.
Fig. 2 is the hot-rolling laminar cooling water system figure of prior art.
Fig. 3 is a hot rolling cooling water control system structural representation of the present invention.
Fig. 4 is a hot rolling cooling water control method flow chart of the present invention.
Fig. 5 is the hot rolling sewage circulating water control system structural representation in the application example of the present invention.
Fig. 6 is the hot-rolling laminar cooling water control system architecture schematic diagram in the application example of the present invention.
The specific embodiment
Main thought of the present invention is: in order to overcome the hot rolling mill rolling line Department of Automation problem that water treatment controlling system is separate, do not have real time data communication, important critical data can not share, can not monitor in real time of unifying, the present invention sets up real-time dynamic communication by the water treatment controlling system of unifying in hot rolling mill rolling line Department of Automation, realize data sharing and monitoring in real time between these two systems, for dynamically control cooling water inflow and cooling water pressure provide FEEDFORWARD CONTROL information, accomplish cooling water institute's confession as required, under the prerequisite that satisfies the rolling line technological requirement, realize energy-saving and cost-reducing.
Below in conjunction with the drawings and specific embodiments technical solution of the present invention is further elaborated.
With reference to shown in Figure 3, be hot rolling cooling water control system structural representation of the present invention.Described system comprises: rolling line information acquisition unit 36, cooling water control unit 31, communication unit 32.
Described rolling line information acquisition unit 36 is used for from the rolling line data message of rolling line automated system 30 acquisition hot rolling lines 34;
Described rolling line data message comprises but is not limited to production status information (to be produced, roll change, inspecting state), fault alarm information, turbid ring cooling water, laminar cooling water are set calculated data, rolling line rolled piece tracking information, the switching value signal of related valve, turbid circulating water amount signal, laminar cooling water amount signal, clean circulating water amount signal, the turbid circulating water temperature signal, the turbid circulating water pressure signal, laminar cooling water temperature signal, laminar cooling water pressure signal, the clean circulating water temperature signal, clean circulating water pressure signal etc.; And the mode of described acquisition rolling line information comprises that by gathering rolling line automated system data, sensing element detects, manual entry, computer model calculating etc.
Described cooling water control unit 31 is used to receive the rolling line data message of rolling line information acquisition unit, according to described rolling line data message cooling water inflow is controlled;
Described communication unit 32, be meant communication equipment and system between rolling line information acquisition unit 36 (perhaps the rolling line automated system 30) and cooling water control unit 31, the rolling line data message that is used for the rolling line 34 of hot rolling line that described rolling line information acquisition unit 36 is obtained sends described cooling water control unit 31 to, described communication unit 32, can comprise software, the combination of hardware or software and hardware, can adopt wired, technological means such as wireless, can adopt fiber optic Ethernet, common Ethernet, fieldbus, the communication of serial paralled interface agreement, and means such as rigid line communication, but the invention is not restricted to this.
Described cooling water control unit 31 further comprises:
A kind of embodiment is a speed control device on supply-water pump, and described logic control element 312 sends control signal to described speed control device, thereby regulates output by the rotating speed of control supply-water pump.Described speed control device can use speed governing facilities such as frequency converter or fluid power coupling apparatus, and the speed governing facility is installed on all water pumps or the part water pump.
In another embodiment of the present invention, also can use throttle device separately, throttle device is installed control valve at every exit of pump, and the control signal that described control valve RL control module 312 sends is followed the big or small dynamic adjustments valve opening according to output.
Certainly, in additional embodiments of the present invention, the scheme that operating part can also use speed control device and throttle device to be used simultaneously, in this scheme, speed control device can be contained on many supply-water pumps, also can be contained on the separate unit supply-water pump.
In another embodiment of the present invention, described cooling water control unit 31 also is used to receive water system information, and according to described rolling line data message and water system information the cooling water amount is controlled.Described water system information comprises: the start-stop of water pump, the switching operation signal of valve and switch state signal, valve opening, pump motor rotating speed and temperature, pressure, flow, process data and fault alarm information such as water level.
In another embodiment of the present invention, described cooling water control unit 31, after receiving water system information and rolling line data message, can obtain the pairing output of each rolled plate kind by calculating, system then of the present invention can also comprise memory cell 311, the pairing output of described each rolling specs kind is stored, for the product of producing specification of the same race provides the initial setting up reference data next time.And described cooling water control unit 31 also is used for according to the pairing output of each rolled plate kind of storage the rolling line output being controlled.
It is pointed out that described cooling water control unit 31 can dispose separately, also can be configured in the water process automation system that can also be configured in the rolling line automated system, the present invention is not limited this.Described cooling water control unit controls picture 35 embeds in the control picture of rolling line automated system or sets up separately, is convenient to the rolling line operating personnel and water treatment system is monitored and is intervened, and manually revises pressure, temperature and the flow of rolling line cooling water.
Described cooling water control unit 31, can comprise turbid circulating water system control unit, clean circulating water system control unit, laminar cooling system control module, can only comprise wherein a kind of or two kinds can being other unit for treating water, the present invention is not limited this yet yet.
With reference to shown in Figure 4, be hot rolling cooling water control method flow chart of the present invention.Described method comprises:
Step 401: obtain rolling line information;
Step 402: send the rolling line information of described acquisition to the cooling water control unit by communication unit;
Step 403: the cooling water control unit is controlled the cooling water amount according to described rolling line information.
The information of rolling line described in the step 401, can be: production status information (be produced, roll change, inspecting state), the switching value signal of fault alarm information, turbid ring cooling water, laminar cooling water, clean circulating water setting calculated data, rolling line trace information, related valve and turbid circulating water amount signal, laminar cooling water amount signal, clean circulating water amount signal, the turbid circulating water temperature signal, the turbid circulating water pressure signal, the laminar cooling water temperature signal, the laminar cooling water pressure signal, the clean circulating water temperature signal, clean circulating water pressure signal etc.; And the mode of described acquisition rolling line information comprises by sensing element and detecting, manual entry, computer model calculating etc.
In a preferred embodiment of the invention, described the cooling water amount is controlled, being comprised: obtain corresponding cooling water inflow according to described rolling line data message; Send control signal according to described corresponding cooling water inflow to performance element.
As a kind of preferred implementation of the present invention, described performance element is a supply-water pump, throttling or speed control device are installed on supply-water pump, describedly send control signal to performance element and comprise: send control signal to performance element, comprise: send control signal to described throttling or speed control device, thereby regulate output by the rotating speed of control supply-water pump.
Described speed control device can use speed governing facilities such as frequency converter or fluid power coupling apparatus, and the speed governing facility is installed on all water pumps or the part water pump.
As a kind of preferred implementation of the present invention, described performance element is a supply-water pump, use separately dynamic throttling equipment, throttle device is installed control valve at every exit of pump, describedly sends control signal to performance element and comprises: follow the big or small dynamic adjustments valve opening according to output.
Certainly, in additional embodiments of the present invention, the scheme that operating part can also use speed control device and throttle device to be used simultaneously, in this scheme, speed control device can be contained on many supply-water pumps, also can be contained on the separate unit supply-water pump.
Below by the example in the concrete application the present invention is carried out exemplary illustration.
Application example 1:
With reference to shown in Figure 5, be the hot rolling sewage circulating high-pressure cooling water control system structural representation in the application example of the present invention.
When the flow that flows through the turbid ring cooling water valve 65 of high pressure changes, the total flow that will cause supply-water pump group 50 to supply water changes, there is not effective conservation measures in order to overcome existing hot rolling sewage circulating high-pressure cooling water system, the problem that energy consumption is serious, should use in the example, at the concrete characteristics of hot rolling sewage circulating high-pressure cooling water system and the technological requirement of rolling line, throttle device (control valve 51) or speed control device (frequency converter 52) are installed as carrying out facility on supply-water pump group 50, the supply-water pump group is carried out the rotational speed regulation that water pump power supplying and distributing equipment 66 and 52 pairs of motor 64 of frequency converter were regulated or passed through to dynamic throttling, and server 57 uses a computer, cooling water control unit that PLC programmable logic controller (PLC) 59 and host computer 58 (man-machine interface) constitute 53 is controlled it.Cooling water control unit 53 and hot rolling line computer control system are carried out communication, rolling line information acquisition unit 54 receives rolling line information, by analysis and calculate, control the aperture or the pump rotary speed of the outlet regulating valve of turbid ring cooling water pump group in real time as feed-forward control signals, output and pressure of supply water according to rolling line demand dynamic adjustments turbid circulating water cooling supply-water pump group, accomplish institute's confession as required, reach the purpose of energy-conservation and stable turbid circulating water pressure of supply water.
Cooling water control unit 53 comprises server 57, host computer 58 (man-machine interface) and PLC programmable logic controller (PLC) 59.
The effect of server 57 is that model calculates and the data storage, promptly obtain the pairing output of each rolled plate kind by calculating, the pairing output of described each rolled plate kind is stored and handled, the rolling line output is controlled according to the pairing output of each rolled plate kind of storage.
The carrier of the man-machine interface of host computer 58 is realized the demonstration of control picture, data setting and artificial the adjustment.
Performance element is mainly the start-stop control device of pump, the speed control device and the control valve constant pitch current control facility of pump.
Should use the measure that is based upon the FEEDFORWARD CONTROL on the mechanics of communication with example, improved the reaction speed of system water supply, this system can control well under the prerequisite of pressure of supply water, active is in advance supplied water according to the water requirement of hot rolling line, reduce turbid ring cooling water of high pressure and turbid ring recirculated water total amount, cyclone well and horizontal flow basin have also reduced output simultaneously, reach energy-conservation and purpose that improve the quality of products.
Because it is strong that the present invention adjusts the ability of the turbid ring high-pressure cooling water of rolling line systematic Water supply pressure, can replace expensive voltage stabilizing overflow valve 63 (it is individual to be generally 3,000,000-400 contingency, and a turbid ring cooling water system needs 4-5), save primary equipment.The effect of voltage stabilizing overflow valve is to stablize the rolling line pressure of supply water to drain water treatment system simultaneously for the unnecessary water that comes.Because water supply can be accomplished institute's confession as required to rolling line, the Total Water that is back to cyclone well and horizontal flow basin reduces 20%-50%, and the design capacity of cyclone well and horizontal flow basin can reduce 10%-20%, can save construction and once invest.
The present invention can adjust the turbid ring high-pressure cooling water of rolling line systematic Water supply pressure more accurately, special more remarkable for the turbid circulating water water system effect that does not have voltage stabilizing overflow valve 63, the stable turbid ring cooling water of working pressure can be controlled the temperature of rolled piece more accurately, optimize temperature model, the temperature computation model is the core of rolling line automated system, and is significant to improving the quality of products.
The communication unit medium can adopt fiber optic Ethernet, common Ethernet, fieldbus, the communication of serial paralled interface agreement, and hardwire, communication modes can between PLC and the PLC, be set up communication between server and the PLC between the server and server of cooling water control unit and rolling line automated system.
The cooling water control unit is arranged in the water process automation system usually, also can be arranged in the rolling line automated system, but control picture need in the control picture of rolling line automated system, embed or set up separately, like this can so that the rolling line operating personnel monitor and intervene.
Application example 2:
With reference to shown in Figure 6, be the hot-rolling laminar cooling water control system architecture schematic diagram in the application example of the present invention.
Characteristic at the process characteristic and the water pump of hot-rolling laminar cooling water, add the electronic of quick response or pneumatic flowrate control valve 70 at every water supply delivery side of pump, and use a computer, PLC programmable logic controller (PLC) (claiming laminar cooling water control module 60 later on) controls it.Cooling water control unit 60 passes through EPA, industry spot network etc. carries out communication with hot rolling line computer control system (rolling line information acquisition unit 61) by communication unit 62, receive the rolled piece tracking signal of production line computer control system (rolling line information acquisition unit 61), rolled piece information, presetting and on-line setup information of different size laminar flow cooling output, through process analysis and calculating, the aperture of the outlet regulating valve of real-time control laminar flow cooling supply-water pump group 63 and the rotating speed of water pump, output according to rolling line demand dynamic adjustments laminar flow cooling supply-water pump group 63, when the 71 water spray coolings of lower collector pipe on the rolling line laminar cooling system, laminar flow cooling supply-water pump group 63 supplies water by the laminar flow cooling requirement water yield, when the rolling line laminar cooling system is not sprayed water, supply water by minimum output, to accomplish institute's confession as required, reach purpose of energy saving.
Should mainly comprise it being with the equipment in the example, exit of pump control valve, the auxiliary circuit of by-pass valve control and rolling line information acquisition unit 61, and circuit or the communication apparatus got in touch with mutually with the laminar flow control system of water pump by cooling water control unit 60.Cooling water control unit 60 is by communication unit 62 and 61 communications of rolling line information acquisition unit, receive the setting result of calculation of rolling line laminar cooling water amount and the tracking signal of rolled piece, calculate by computer system analysis, determine the aperture size of each outlet valve of laminar flow cooling supply-water pump group and the switching moment of valve.
In order to reach better energy-saving effect, in the process of control, also to get the liquid level signal of elevated tank 64, as a supplement the control of the liquid level of elevated tank 64.Water level must be controlled in the certain limit of working water level, and when water level elevation is lower than when minimum, moisturizing strengthens output; And when water level elevation was higher than the highest liquid level, the workshop water system then supplied water with minimum output.Because elevated tank 64 has relief function, when the cistern water level absolute altitude was higher than the highest liquid level, unnecessary water can reflux by overflow pipe 65, so be that minimizing overflows back streamflow to the final purpose of control system, it is more little to overflow back streamflow, and energy-saving effect is good more.
It is separate to the invention solves hot rolling mill hot rolling line and water treatment system, there are not online communication and unified historic problem of consulting control, between rolling line and water treatment, set up the real time data communication, the rolling line automation control system can be monitored water treatment system, the water process automation control system also can be shared the information of rolling line automated system, realizes integrated control.
It is to be noted; the above is a preferred implementation of the present invention; be not limited to the technical solution; any those of ordinary skill in the art replaced or corresponding improvement the technology of the present invention feature being equal to of being done; still within protection scope of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (10)
1. one kind based on integrated roll line control hot rolling cooling water control system, it is characterized in that described control system comprises:
Rolling line information acquisition unit is used to obtain the rolling line data message of hot rolling line,
The cooling water control unit is used to receive the rolling line data message of rolling line information acquisition unit, according to described rolling line data message cooling water inflow is controlled;
Communication unit is used for sending the rolling line data message of the hot rolling line of the described acquisition of described rolling line information acquisition unit to described cooling water control unit.
2. control system as claimed in claim 1 is characterized in that, described cooling water control unit further comprises:
Processing unit is used for obtaining the moment that real-time cooling water inflow and cooling water inflow change according to described rolling line data message;
Control module is used for sending control signal according to the moment that described real-time cooling water inflow and cooling water inflow change to performance element.
3. control system as claimed in claim 2, it is characterized in that, described performance element is supply-water pump and is installed in throttling or speed control device on the supply-water pump, described control module, be further used for sending control signal, thereby regulate output by the rotating speed of control supply-water pump or the aperture of exit of pump valve to described throttling or speed control device.
4. control system as claimed in claim 3 is characterized in that, described throttling or speed control device are a kind of in frequency converter, fluid power coupling apparatus, magnetic coupling, electromagnetic adjustable speed motor, the control valve, perhaps control valve and other a kind of combination.
5. control system as claimed in claim 1 is characterized in that, described cooling water control unit,
Be further used for receiving water system information, and the cooling water amount controlled according to described rolling line data message and water system information.
6. control system as claimed in claim 1, it is characterized in that, described cooling water control unit also comprises the control picture that is used for display control information, described cooling water control unit controls picture embeds in the control picture of rolling line automated system, or sets up separately in the control picture of rolling line automated system.
7. one kind based on integrated roll line control hot rolling cooling water control method, it is characterized in that described method comprises:
Obtain rolling line information;
Send the rolling line information of described acquisition to the cooling water control unit by communication unit;
The cooling water control unit is controlled the cooling water amount according to described rolling line information.
8. control method as claimed in claim 7 is characterized in that, the cooling water control unit is controlled the cooling water amount according to described rolling line information, comprising:
Obtain cooling water inflow according to described rolling line data message;
Send control signal according to described cooling water inflow to performance element.
9. control method as claimed in claim 8, it is characterized in that, described performance element is supply-water pump and is installed in throttling or speed control device on the supply-water pump, described cooling water control unit sends control signal to described throttling or speed control device, thereby regulates output by the rotating speed of control supply-water pump or the aperture of supply-water pump outlet valve; Described throttling or speed control device are a kind of in frequency converter, fluid power coupling apparatus, magnetic coupling, electromagnetic adjustable speed motor, the control valve, perhaps control valve and other a kind of combination.
10. control method as claimed in claim 7 is characterized in that,
Described cooling water control unit further receives water system information, and according to described rolling line data message and water system information the cooling water amount is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101618200A CN101844157B (en) | 2010-04-28 | 2010-04-28 | Integrated roll line control-based hot rolling cooling water control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101618200A CN101844157B (en) | 2010-04-28 | 2010-04-28 | Integrated roll line control-based hot rolling cooling water control method and system |
Publications (2)
| Publication Number | Publication Date |
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| CN101844157A true CN101844157A (en) | 2010-09-29 |
| CN101844157B CN101844157B (en) | 2013-09-18 |
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| CN2010101618200A Expired - Fee Related CN101844157B (en) | 2010-04-28 | 2010-04-28 | Integrated roll line control-based hot rolling cooling water control method and system |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151694A (en) * | 2010-12-17 | 2011-08-17 | 武汉钢铁(集团)公司 | Method for recording real-time state curve of heavy rail during rolling process |
| CN102755997A (en) * | 2012-07-26 | 2012-10-31 | 宝钢不锈钢有限公司 | Safe and energy-saving control device and control method of hot rolling high-pressure descaling system |
| CN104668296A (en) * | 2014-12-11 | 2015-06-03 | 马钢(集团)控股有限公司 | Condition monitoring method of section-steel through-water cooling high-pressure inverter water pumps |
| CN104928463A (en) * | 2015-04-30 | 2015-09-23 | 宝钢特钢有限公司 | Method for controlling quenching machine water supply system of hot-rolled steel plate heat treatment line |
| CN105544657A (en) * | 2016-01-04 | 2016-05-04 | 上海市政工程设计研究总院（集团）有限公司 | Control method of one-way pressure stabilizing tower device |
| CN106123617A (en) * | 2016-06-21 | 2016-11-16 | 上海宝钢节能环保技术有限公司 | Line universal machine intelligent energy-saving control system and method are produced in hot rolling |
| CN107225156A (en) * | 2017-07-31 | 2017-10-03 | 中色科技股份有限公司 | A kind of non-ferrous metal rolling line sluice |
| CN107486473A (en) * | 2017-09-29 | 2017-12-19 | 四川德胜集团钒钛有限公司 | A kind of rolling line automated system |
| CN109365545A (en) * | 2018-10-26 | 2019-02-22 | 山西太钢不锈钢股份有限公司 | Section cooling water supply amount control system and its method |
| CN109894483A (en) * | 2019-03-02 | 2019-06-18 | 宝钢湛江钢铁有限公司 | A kind of stabilized voltage device and its method of slab after-rolling cooling system high pressure section |
| CN111072203A (en) * | 2019-11-29 | 2020-04-28 | 武汉钢铁有限公司 | Water circulation method and water circulation system for improving surface quality of hot-rolled strip steel |
| CN112676353A (en) * | 2020-12-03 | 2021-04-20 | 邯郸钢铁集团有限责任公司 | Computer energy-saving model based on material tracking and temperature control and use method |
| CN112916621A (en) * | 2019-12-05 | 2021-06-08 | 上海梅山钢铁股份有限公司 | Energy-saving control method for hot rolling turbid circulating water process |
| CN113083909A (en) * | 2021-02-24 | 2021-07-09 | 唐山不锈钢有限责任公司 | On-line plate shape quality judgment method for hot-rolled strip steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151694A (en) * | 2010-12-17 | 2011-08-17 | 武汉钢铁(集团)公司 | Method for recording real-time state curve of heavy rail during rolling process |
| CN102755997A (en) * | 2012-07-26 | 2012-10-31 | 宝钢不锈钢有限公司 | Safe and energy-saving control device and control method of hot rolling high-pressure descaling system |
| CN104668296A (en) * | 2014-12-11 | 2015-06-03 | 马钢(集团)控股有限公司 | Condition monitoring method of section-steel through-water cooling high-pressure inverter water pumps |
| CN104668296B (en) * | 2014-12-11 | 2016-09-07 | 马钢(集团)控股有限公司 | A kind of method for monitoring state of shaped steel Water cooling high-pressure frequency-conversion water pump |
| CN104928463B (en) * | 2015-04-30 | 2017-11-03 | 宝钢特钢有限公司 | A kind of method for controlling hot rolled steel plate heat-treatment lines quenching press water system |
| CN104928463A (en) * | 2015-04-30 | 2015-09-23 | 宝钢特钢有限公司 | Method for controlling quenching machine water supply system of hot-rolled steel plate heat treatment line |
| CN105544657A (en) * | 2016-01-04 | 2016-05-04 | 上海市政工程设计研究总院（集团）有限公司 | Control method of one-way pressure stabilizing tower device |
| CN105544657B (en) * | 2016-01-04 | 2017-07-18 | 上海市政工程设计研究总院（集团）有限公司 | A kind of control method of unidirectional voltage stabilizing tower apparatus |
| CN106123617A (en) * | 2016-06-21 | 2016-11-16 | 上海宝钢节能环保技术有限公司 | Line universal machine intelligent energy-saving control system and method are produced in hot rolling |
| CN107225156A (en) * | 2017-07-31 | 2017-10-03 | 中色科技股份有限公司 | A kind of non-ferrous metal rolling line sluice |
| CN107486473A (en) * | 2017-09-29 | 2017-12-19 | 四川德胜集团钒钛有限公司 | A kind of rolling line automated system |
| CN109365545A (en) * | 2018-10-26 | 2019-02-22 | 山西太钢不锈钢股份有限公司 | Section cooling water supply amount control system and its method |
| CN109894483A (en) * | 2019-03-02 | 2019-06-18 | 宝钢湛江钢铁有限公司 | A kind of stabilized voltage device and its method of slab after-rolling cooling system high pressure section |
| CN111072203A (en) * | 2019-11-29 | 2020-04-28 | 武汉钢铁有限公司 | Water circulation method and water circulation system for improving surface quality of hot-rolled strip steel |
| CN112916621A (en) * | 2019-12-05 | 2021-06-08 | 上海梅山钢铁股份有限公司 | Energy-saving control method for hot rolling turbid circulating water process |
| CN112676353A (en) * | 2020-12-03 | 2021-04-20 | 邯郸钢铁集团有限责任公司 | Computer energy-saving model based on material tracking and temperature control and use method |
| CN113083909A (en) * | 2021-02-24 | 2021-07-09 | 唐山不锈钢有限责任公司 | On-line plate shape quality judgment method for hot-rolled strip steel |
| CN113083909B (en) * | 2021-02-24 | 2022-05-27 | 唐山不锈钢有限责任公司 | On-line plate shape quality judgment method for hot-rolled strip steel |
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