CN103381426A - Automatic roller cooling temperature control method - Google Patents
Automatic roller cooling temperature control method Download PDFInfo
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- CN103381426A CN103381426A CN2013102823954A CN201310282395A CN103381426A CN 103381426 A CN103381426 A CN 103381426A CN 2013102823954 A CN2013102823954 A CN 2013102823954A CN 201310282395 A CN201310282395 A CN 201310282395A CN 103381426 A CN103381426 A CN 103381426A
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Abstract
The invention discloses an automatic roller cooling temperature control device which is applied to the field of heat treatment. The automatic roller cooling temperature control method comprises an intelligent temperature-control instrument stored with an automatic temperature control program and ideal cooling curves of various rollers, wherein the input end of the intelligent temperature-control instrument is connected with an industrial computer and a temperature measuring instrument; the temperature measuring instrument is further connected with the industrial computer; the output end of the intelligent temperature-control instrument is connected with a frequency converter and a temperature-dropping fan; the frequency converter and the temperature-dropping fan correspond to the temperature measuring instrument in quantity and position; the intelligent temperature-control instrument is used for converting a real-time current signal transmitted from the temperature measuring instrument into a real-time temperature signal, comparing the real-time temperature signal with a real-time temperature of a set ideal cooling curve, and outputting a signal to the frequency converter via the comparison result, and the frequency converter outputs a signal to the temperature-dropping fan to control opening and closing of the temperature-dropping fan and adjust the rotating speed of the temperature-dropping fan. The device can provide a cooling speed consistent with an ideal cooling curve for a roller, so as to solve the technical problems about difficulty in control of cooling speed and poor precision caused in the traditional method.
Description
Technical field
The present invention relates to a kind of control device of heat treatment chilling temperature, especially a kind of temperature control equipment that is applied in roll differential temperature heat treatment cooling procedure.
Background technology
For making roll obtain needed mechanical property, physical property and chemical property, generally want breaker roll to heat-treat, wherein the differential temperature processing is that a kind of roll neck and roller core of both can having made is tough, can make again the hard and wear-resisting roll heat treatment method of the body of roll, have that process cycle is short, energy consumption is low, homogeneous heating, the advantage such as stable, be widely used in the heat treatment of roll.
At first differential temperature heat treatment be heated rapidly to the certain thickness metal in roll body surface the hardening heat of regulation, and roller core still is in low-temperature condition, obtain different tissues inside and outside making roll through cooling again, both guarantee the hardness of roll barrel working lining, guaranteed again the toughness of roller neck and roller core section.
Last hardness and the toughness of the speed that cooling during differential temperature is processed processed and roll is closely bound up, deal with improperly if cool, might cause undesirable, much higher hard or too low, the problem such as stress is large organized, gently need another warm to process or replenish tempering, heavy can crack and scrap.
Traditional method of cooling is to need to carry out personal monitoring's temperature in temperature-fall period, and carries out auxiliary temperature-reducing according to the temperature manual adjustment temperature-dropping fan of monitoring, and rate of temperature fall and desirable cooling curve are coincide.After needing temperature of artificial Timing measurement in traditional cool-down method, carry out auxiliary temperature-reducing according to measurement result manual adjustment temperature-dropping fan again, temperature is by manually operated fully, and the operator need to observe temperature instrumentation constantly, compares according to the temperature of instrument demonstration with technological requirement, the hand-guided temperature-dropping fan, the measurement of not only labor intensive, and temperature is discrete, can not accomplish to regulate in real time and control temperature, temperature controlled precision is also relatively poor, the failure that easily causes differential temperature to process.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of roll chilling temperature automaton, and the cooling velocity of coincideing with desirable cooling curve is provided for roll, with the cooling velocity that solves traditional cool-down method be difficult to control, the technical problem of low precision.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
Roll chilling temperature automaton, the intelligence temperature controller that comprises the desirable cooling curve that stores temperature automatic control program and multiple roll, the input of intelligence temperature controller is connected and connects at least three groups of breaker rolls that axially are evenly arranged along roller surface with industrial computer temperature is carried out the temperature measurer that detects in real time, the output of intelligence temperature controller is connected with frequency converter, and frequency converter connects temperature-dropping fan; The quantity of described frequency converter and temperature-dropping fan is corresponding with position and temperature measurer; Described temperature measurer is ultrared sweeping temperature measuring instrument, the current signal that the real time temperature signal that temperature measurer will be measured gained is converted into 4～20mA sends intelligence temperature controller and industrial computer to, industrial computer is with the form displays temperature situation of change of thermography and thermal envelope real time record storing temperature data simultaneously, and analysis is inquired about, called to historical temperature data; The real-time current signal that intelligence temperature controller transmits temperature measurer converts the real time temperature signal to and compares with the real time temperature of the desirable cooling curve of setting, output signal to frequency converter according to comparative result, output signal to temperature-dropping fan by frequency converter, control temperature-dropping fan unlatching, close and adjust the temperature-dropping fan rotating speed.
Further improvement of the present invention is: the course of work of intelligence temperature controller is as follows:
Before the cooling beginning of step 1), according to size and the material of pending roll, transferring by industrial computer the desirable cooling curve that is complementary with this roll in intelligence temperature controller is current desirable cooling curve;
Step 2) during cooling beginning, intelligence temperature controller begins timing;
The ideal temperature of step 3) intelligence temperature controller inquiry current time;
The actual temperature of the current time that every group of temperature measurer of step 4) intelligence temperature controller reception detects;
The actual temperature of every group of temperature measurer of step 5) intelligent temperature controller table record current time, and respectively with the ideal temperature of the current time of desirable cooling curve relatively:
If the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured is during greater than the current time ideal temperature of correspondence, intelligence temperature controller strengthens the corresponding frequency converter signal that connects, thereby improve the rotating speed of temperature-dropping fan, accelerate the cooling velocity of roll part corresponding to this group ultrared sweeping temperature measuring instrument; If the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured is during less than the current time ideal temperature of correspondence, intelligence temperature controller weakens the corresponding frequency converter signal that connects; When if the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured equals the current time ideal temperature of correspondence, intelligence temperature controller keeps the corresponding frequency converter signal that connects;
Step 6) judges whether reach the concluding time current cool time, if the current time does not reach the concluding time, returns to step 3); If the current time has reached the concluding time, close temperature-dropping fan by frequency converter, cooling end.
Further improvement of the present invention is: described temperature-dropping fan is a kind of cooling axial flow blower.
Owing to having adopted technique scheme, the technological progress that the present invention obtains is:
Temperature Automatic continuous when the present invention has realized roll differential temperature cooling processing detects, the automatic control of temperature-fall period, the present invention compares the actual roll chilling temperature of current time and the corresponding temperature of desirable cooling curve in real time by the temperature automatic control program, and by controlling the frequency converter realization to the control of temperature-dropping fan rotating speed, thereby control intensity of cooling and speed, greatly improve the goodness of fit of roll cooling procedure and desirable cooling procedure, improved the efficient that differential temperature is processed.Need not Artificial Control in the roll cooling procedure, automaticity is high, has reduced the error that causes because manually-operated is improper.In batch production process, improved greatly the uniformity that the cooling rate of different rolls is controlled, thereby guarantee there has been the lifting of this materialization to product quality, effectively raises the competitiveness of product in market.
The present invention compares with the corresponding temperature of desirable cooling curve by the real time temperature that every group of ultrared sweeping temperature measuring instrument recorded, and respectively rotation speed of fan air quantity corresponding to every group of ultrared sweeping temperature measuring instrument that is arranged on the roll different parts carried out corresponding adjusting according to concrete testing result, further improve the cooling uniformity of roll, improved the cooling control accuracy of roll.
In the present invention, the output of temperature measurer also is connected with industrial computer, and convenient operation personnel breaker roll cooling procedure is controlled and monitored, and has improved the visual and stable of roll cooling procedure.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is the workflow diagram of intelligence temperature controller of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Roll chilling temperature automaton, its system architecture comprise temperature measurer, industrial computer, intelligence temperature controller, temperature-dropping fan, frequency converter as shown in Figure 1.
Temperature measurer is a kind of ultrared sweeping temperature measuring instrument, can realize the real-time scanning survey of Automatic continuous of breaker roll surface temperature.Ultrared sweeping temperature measuring instrument is evenly arranged three groups vertically at least at roller surface.The output of ultrared sweeping temperature measuring instrument is connected with the input of intelligence temperature controller, thereby the temperature signal of the roll that ultrared sweeping temperature measuring instrument is recorded is converted into the current signal real-time Transmission of 4～20mA to intelligence temperature controller.Simultaneously, the ultrared sweeping temperature measuring instrument output also with is connected industrial computer and connects, the temperature signal of roll is converted into the current signal real-time Transmission of 4～20mA to industrial computer, analysis be inquired about, be called to industrial computer with the form displays temperature situation of change of thermography and thermal envelope real time record storing temperature data simultaneously, and can to historical temperature data by dedicated program.Industrial computer is the controller of temperature measurer and intelligence temperature controller, and industrial computer can be worked out the desirable cooling curve of roll by dedicated program, and exports to intelligence temperature controller; Set scanning, the temperature measuring parameter of ultrared sweeping temperature measuring instrument by dedicated program.
Store the desirable cooling curve of the roll of temperature automatic control program and plurality of specifications and material in intelligence temperature controller, and select desirable cooling curve by industrial computer.The real-time current signal that intelligence temperature controller transmits temperature measurer converts the real time temperature signal to and compares with the real time temperature of the desirable cooling curve of setting, comparative result is converted into the control signal of 4-20mA, output signal to frequency converter according to comparative result, frequency converter is converted into the control signal of 4-20mA the control signal of temperature-dropping fan motor, control the temperature-dropping fan motor unlatching, close and adjust the temperature-dropping fan motor speed, so that the rotating speed of motor is controlled to adjust air quantity, realize the cool automatic control of process of breaker roll.The signal of telecommunication that frequency converter can send according to intelligence temperature controller carries out fine adjustment to the rotating speed of cooling axial flow blower.In the present embodiment, temperature-dropping fan is a kind of cooling axial flow blower, utilize the air-flow breaker roll that produces to lower the temperature, frequency converter can be controlled according to the output signal of intelligence temperature controller the rotating speed of cooling axial flow blower, and then can control the cooling rate of roll by intelligence temperature controller.The quantity of described frequency converter and temperature-dropping fan is corresponding with position and temperature measurer.
The concrete course of work of intelligence temperature controller is as follows:
Before the cooling beginning of step 1), according to size and the material of pending roll, transferring by industrial computer the desirable cooling curve that is complementary with this roll of storing in intelligence temperature controller is current desirable cooling curve;
Step 2) during cooling beginning, industrial computer sends instruction makes intelligence temperature controller begin timing;
The ideal temperature of step 3) intelligence temperature controller inquiry current time;
The actual temperature of the current time that every group of temperature measurer of step 4) intelligence temperature controller reception detects;
The actual temperature of every group of temperature measurer of step 5) intelligent temperature controller table record current time, and respectively with the ideal temperature of the current time of desirable cooling curve relatively:
If the actual temperature of the current time of the roll correspondence position that certain ultrared sweeping temperature measuring instrument is measured is during greater than the current time ideal temperature of correspondence, intelligence temperature controller strengthens the corresponding frequency converter signal that connects, thereby improve the rotating speed of temperature-dropping fan, accelerate the cooling velocity of roll part corresponding to this group ultrared sweeping temperature measuring instrument; If the actual temperature of the current time of the roll correspondence position that certain ultrared sweeping temperature measuring instrument is measured is during less than the current time ideal temperature of correspondence, intelligence temperature controller weakens the corresponding frequency converter signal that connects; When if the actual temperature of the current time of the roll correspondence position that ultrared sweeping temperature measuring instrument is measured equals the current time ideal temperature of correspondence, intelligence temperature controller keeps the corresponding frequency converter signal that connects;
Step 6) judges whether reach the concluding time current cool time, if the current time does not reach the concluding time, returns to step 3); If the current time has reached the concluding time, close temperature-dropping fan by frequency converter, cooling end.
Ultrared sweeping temperature measuring instrument in the present embodiment is provided with three groups, be separately positioned on two ends and the middle part of roll, the position of cooling axial flow blower is corresponding one by one with the position of three groups of infrared radiation thermometers, and each cooling axial flow blower is connected with intelligence temperature controller by a frequency converter.
Control principle of the present invention: temperature measurer carries out the temperature detection of roller surface, and the real-time roller temperature signal that temperature measurer records is converted into 4～20mA current signal, exports to respectively industrial computer and intelligence temperature controller.Intelligence temperature controller compares according to the signal of temperature measurer input and the ideal cooling temperature of setting, the output control signal is to frequency converter, the unlatching of the motor by the Frequency Converter Control temperature-dropping fan, close and the speed speed, the rotating speed of cooling axial flow blower has directly determined the size of air quantity, the size of air quantity determines the cooling velocity of roll, thereby realizes the purpose that temperature-fall period is controlled automatically.
Claims (3)
1. roll chilling temperature automaton, it is characterized in that: the intelligence temperature controller that comprises the desirable cooling curve that stores temperature automatic control program and multiple roll, the input of intelligence temperature controller is connected and connects at least three groups of breaker rolls that axially are evenly arranged along roller surface with industrial computer temperature is carried out the temperature measurer that detects in real time, the output of intelligence temperature controller is connected with frequency converter, and frequency converter connects temperature-dropping fan; The quantity of described frequency converter and temperature-dropping fan is corresponding with position and temperature measurer; Described temperature measurer is ultrared sweeping temperature measuring instrument, the current signal that the real time temperature signal that temperature measurer will be measured gained is converted into 4～20mA sends intelligence temperature controller and industrial computer to, industrial computer is with the form displays temperature situation of change of thermography and thermal envelope real time record storing temperature data simultaneously, and analysis is inquired about, called to historical temperature data; The real-time current signal that intelligence temperature controller transmits temperature measurer converts the real time temperature signal to and compares with the real time temperature of the desirable cooling curve of setting, output signal to frequency converter according to comparative result, output signal to temperature-dropping fan by frequency converter, control temperature-dropping fan unlatching, close and adjust the temperature-dropping fan rotating speed.
2. roll chilling temperature automaton according to claim 1, it is characterized in that: the course of work of intelligence temperature controller is as follows:
Before the cooling beginning of step 1), according to size and the material of pending roll, transferring by industrial computer the desirable cooling curve that is complementary with this roll in intelligence temperature controller is current desirable cooling curve;
Step 2) during cooling beginning, intelligence temperature controller begins timing;
The ideal temperature of step 3) intelligence temperature controller inquiry current time;
The actual temperature of the current time that every group of temperature measurer of step 4) intelligence temperature controller reception detects;
The actual temperature of every group of temperature measurer of step 5) intelligent temperature controller table record current time, and respectively with the ideal temperature of the current time of desirable cooling curve relatively:
If the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured is during greater than the current time ideal temperature of correspondence, intelligence temperature controller strengthens the corresponding frequency converter signal that connects, thereby improve the rotating speed of temperature-dropping fan, accelerate the cooling velocity of roll part corresponding to this group ultrared sweeping temperature measuring instrument; If the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured is during less than the current time ideal temperature of correspondence, intelligence temperature controller weakens the corresponding frequency converter signal that connects; When if the actual temperature of the current time that ultrared sweeping temperature measuring instrument is measured equals the current time ideal temperature of correspondence, intelligence temperature controller keeps the corresponding frequency converter signal that connects;
Step 6) judges whether reach the concluding time current cool time, if the current time does not reach the concluding time, returns to step 3); If the current time has reached the concluding time, close temperature-dropping fan by frequency converter, cooling end.
3. roll chilling temperature automaton according to claim 1, it is characterized in that: described temperature-dropping fan is a kind of cooling axial flow blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282395.4A CN103381426B (en) | 2013-07-04 | 2013-07-04 | Automatic roller cooling temperature control device |
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| CN201310282395.4A CN103381426B (en) | 2013-07-04 | 2013-07-04 | Automatic roller cooling temperature control device |
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| CN103381426B CN103381426B (en) | 2015-05-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741375A (en) * | 2013-12-27 | 2015-07-01 | 志晟企业股份有限公司 | Continuous near-net type rolling equipment for linear slide rail material |
| CN104249081B (en) * | 2014-08-27 | 2016-06-15 | 山东钢铁股份有限公司 | The control method of air-cooled blower fan and device |
| CN111380364A (en) * | 2020-03-18 | 2020-07-07 | 北京北方华创微电子装备有限公司 | Furnace body cooling method of semiconductor heat treatment equipment and semiconductor heat treatment equipment |
| CN112044997A (en) * | 2020-08-27 | 2020-12-08 | 六安一六八航空航天精密器件有限公司 | Plate rolling mechanism with small diameter and high precision |
| CN115253904A (en) * | 2022-07-29 | 2022-11-01 | 浙江铁狮高温材料有限公司 | Compact zirconia water gap core production equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741375A (en) * | 2013-12-27 | 2015-07-01 | 志晟企业股份有限公司 | Continuous near-net type rolling equipment for linear slide rail material |
| CN104249081B (en) * | 2014-08-27 | 2016-06-15 | 山东钢铁股份有限公司 | The control method of air-cooled blower fan and device |
| CN111380364A (en) * | 2020-03-18 | 2020-07-07 | 北京北方华创微电子装备有限公司 | Furnace body cooling method of semiconductor heat treatment equipment and semiconductor heat treatment equipment |
| CN112044997A (en) * | 2020-08-27 | 2020-12-08 | 六安一六八航空航天精密器件有限公司 | Plate rolling mechanism with small diameter and high precision |
| CN115253904A (en) * | 2022-07-29 | 2022-11-01 | 浙江铁狮高温材料有限公司 | Compact zirconia water gap core production equipment |
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| CN103381426B (en) | 2015-05-13 |
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