CN116254407A - Air-cooled steel band cooling device - Google Patents

Air-cooled steel band cooling device Download PDF

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Publication number
CN116254407A
CN116254407A CN202310278634.2A CN202310278634A CN116254407A CN 116254407 A CN116254407 A CN 116254407A CN 202310278634 A CN202310278634 A CN 202310278634A CN 116254407 A CN116254407 A CN 116254407A
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Prior art keywords
air
cooling
air inlet
temperature
temperature measuring
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CN202310278634.2A
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Chinese (zh)
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CN116254407B (en
Inventor
李敬海
张黎明
任小山
刘金友
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Kunming Huaxin Metal Material Manufacturing Co ltd
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Kunming Huaxin Metal Material Manufacturing Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The invention discloses an air-cooled steel belt cooling device, which relates to the technical field of steel belt air cooling, and comprises a pipe network box, wherein supporting frames are symmetrically arranged below the pipe network box, supporting plates are symmetrically arranged on the supporting frames, side plates are arranged below the pipe network box on the outer sides of the supporting frames, a plurality of hot rolls are arranged on two supporting plates, and steel belts to be air-cooled pass through the hot rolls; an air pipe is arranged in the pipe network box, an air inlet machine is arranged on one side of the pipe network box, the air inlet machine is connected with the air pipe, three air cooling plates are arranged below the pipe network box and are communicated with the air pipe, and an air outlet is formed in each air cooling plate; the air inlet machine extracts low-temperature air and infuses the air into the air pipe, the air cooling plate sprays the low-temperature air onto the hot steel belt through the air outlet, the spraying direction of the low-temperature air is opposite to the moving direction of the steel belt, the low-temperature air pushes the hot air above the steel belt to the rear of the advancing direction of the steel belt, and the steel belt is cooled by air cooling.

Description

Air-cooled steel band cooling device
Technical Field
The invention relates to the technical field of steel belt air cooling, in particular to an air-cooled steel belt cooling device.
Background
Steel belts are used to bind loads by using conveyor belts made of carbon steel as the traction and carrying members of belt conveyors. In the production and processing process of the steel belt, the steel belt coming out of the annealing furnace is cooled by a cooling system, so that the steel belt meets the requirements of subsequent procedures and is convenient for the subsequent procedures.
The existing cooling device is poor in using effect, the fan is used for cooling generally, the fan is directly fixed inside the device through screws during installation, and then the air outlet quantity of the fan cannot be adjusted.
The existing cooling device does not monitor the fixed-point temperature of the steel belt in the cooling process, can not accurately control the air cooling effect of the steel belt, and further can not conduct real-time and accurate regulation and control on the air quantity in the cooling process.
Disclosure of Invention
The present invention is directed to an air-cooled steel strip cooling device, which solves the above-mentioned problems of the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: an air-cooled steel belt cooling device comprises a pipe network box, wherein supporting frames are symmetrically arranged below the pipe network box, supporting plates are symmetrically arranged on the supporting frames, side plates are arranged below the pipe network box and outside the supporting frames, a plurality of hot rolls are arranged on two supporting plates, and steel belts to be air-cooled pass through the hot rolls;
an air pipe is arranged in the pipe network box, an air inlet machine is arranged on one side of the pipe network box, the air inlet machine is connected with the air pipe, three air cooling plates are arranged below the pipe network box and are communicated with the air pipe, and an air outlet is formed in each air cooling plate;
three thermal imagers are arranged on the supporting plate, and the thermal imagers measure the temperature of the steel belt. The air inlet machine extracts low-temperature air and infuses the air into the air pipe, the air cooling plate sprays the low-temperature air onto the hot steel belt through the air outlet, the spraying direction of the low-temperature air is opposite to the moving direction of the steel belt, the low-temperature air pushes the hot air above the steel belt to the rear of the advancing direction of the steel belt, and the steel belt is cooled by air cooling. The hot rolls support the steel strip and heat from the steel strip is transferred to the hot rolls. The side plates isolate the space around the steel strip and limit the space for radiating heat of the steel strip and the space for diffusing low-temperature air.
The air pipe comprises an air inlet main pipe and an air outlet main pipe, one end of the air inlet main pipe is connected with an air inlet fan, three groups of air inlet branch pipes are arranged on the air inlet main pipe, one group of air inlet branch pipes comprises two air inlet branch pipes, and one group of air inlet branch pipes is rotationally connected with an air cooling plate;
the utility model discloses a steel strip steel pipe network, including pipe network case, air inlet, air outlet main pipe, air inlet and air outlet, the air inlet is installed to pipe network case below in the forced air cooling board one side that is located left side and intermediate position, the air inlet distributes in the both sides of air cooling board with the air outlet, air outlet main pipe one end is connected with the air outlet, and two air inlets are connected to the air outlet main pipe, the air outlet direction of air outlet fan is opposite with the advancing direction of steel strip. The air cooling plate sprays low-temperature air onto the steel belt, the air outlet fan extracts air at the air suction opening through the air outlet main pipe, the air suction opening extracts hot air above the steel belt, the air cooling plate pushes the hot air above the steel belt to the vicinity of the air suction opening by utilizing air flow, the air cooling plate is matched with the air suction opening, the flow speed of the air above the steel belt is accelerated, and the air cooling efficiency of the steel belt is accelerated. The air outlet fan sprays the extracted air above the steel belt to drive the air above the steel belt to flow, so that preliminary air cooling of the steel belt is realized.
A cooling box is arranged at one side of the side plate corresponding to the position of each hot roller, a filter screen is arranged at one side of the cooling box, a thermoacoustic refrigerator is arranged in the cooling box, a plurality of air collecting boxes are connected above the cooling boxes through pipelines, and the upper parts of the air collecting boxes are connected with an air inlet of an air inlet machine through cold air pipes;
the middle part of the hot roller is inserted with a heat conduction shaft, the heat conduction shaft is rotatably arranged on the two support plates, and one end of the heat conduction shaft is connected with the thermoacoustic refrigerator. The heat roller absorbs heat on the steel belt and transmits the heat to the heat conducting shaft, the heat conducting shaft is rotatably arranged on the supporting plate, one end of the heat conducting shaft is connected with the thermoacoustic refrigerator, the thermoacoustic refrigerator comprises a thermoacoustic engine component and a thermoacoustic refrigerator component, the heat conducting shaft is connected with the thermoacoustic engine component and is a heat source, and the heat conducting shaft provides heat for the thermoacoustic engine component to generate input sound waves. The thermoacoustic refrigerator is used for refrigerating in the refrigerating box, the air inlet machine is used for extracting air in the air collecting box, so that external air enters the refrigerating box through a filter screen of the refrigerating box, the temperature of the external air is reduced in the refrigerating box, the cooled air enters the air collecting box, and finally the cooled air enters the air inlet main pipe through the air inlet machine. The low-temperature air is sprayed out from the air inlet branch pipe to realize the cooling of the steel belt.
The air inlet branch pipes are sleeved with hollow shaft motors, the output ends of the hollow shaft motors are connected to the side wall of the air cooling plate, and the hollow shaft motors are fixed on the lower end face of the pipe network box;
a control system is arranged in the pipe network box and is electrically connected with the thermal imaging instrument and the hollow shaft motor;
each air inlet branch pipe is connected with a regulating valve in series, and the regulating valve is connected with a control system. The air cooling plate performs air cooling on the steel belt, the thermal imager is an online infrared thermal imager, the thermal imager transmits detected temperature data to the control system, the control system analyzes and calculates the data transmitted by the thermal imager, and then the power of the air inlet fan is adjusted or the hollow shaft motor is rotated by a certain angle according to a calculation result; the hollow shaft motor rotates to enable the air outlet of the air cooling plate to incline downwards or upwards, the air outlet inclines downwards to be used for enhancing the air cooling effect on the steel belt, the upward inclination is used for weakening the air cooling effect on the steel belt, and the power of the air inlet fan is adjusted to be also used for enhancing or weakening the air cooling effect. The regulating valve (not shown in the figure) is an electric regulating valve and is used for regulating and controlling the air flow in the air inlet branch pipe and further controlling the air outlet of the air cooling plate.
And a vibration source is arranged in the air cooling plate at the position of the air outlet, and the vibration source is connected with a control system. The vibration source works under the control of the control system and vibrates in the air cooling plate, and the vibration source vibrates to cause the vibration of surrounding air so that the air is outwards diffused in a wave form. The low-temperature air vibrating in the air cooling plate is extruded by the low-temperature air entering subsequently and is outwards diffused in a wave form from the air outlet, the flowing direction of the low-temperature air is opposite to the moving direction of the steel belt, and the hot air above the steel belt is extruded to the air suction opening by the low-temperature air. The low-temperature air is outwards diffused in a wave form, hot air above the steel strip is extruded in a wave form, the hot air is diffused in a wave form, and compared with the mode that a single air flow impacts the hot air above the steel strip (when the single air flow impacts the hot air above the steel strip, the flow speed of the single air flow impact area is increased, the air pressure is reduced, and the hot air can be supplemented to the periphery of the single air flow, so that the air cooling effect of the low-temperature air on the steel strip is affected); the steel belt exchanges heat with low-temperature air to realize air cooling of the steel belt. When the cooling efficiency is adjusted, the control system can adjust the vibration frequency of the vibration source.
Each thermal imager is positioned below the air cooling plate side and far away from the air outlet, and one thermal imager corresponds to one air cooling plate; the cooling device comprises a fixed point detection system, the fixed point detection system consists of three thermal imagers and a control system, and the three thermal imagers are sequentially formed on a supporting plate
Figure SMS_9
Temperature measuring point, < >>
Figure SMS_4
Temperature measuring point +.>
Figure SMS_15
Temperature measuring point, said->
Figure SMS_6
Temperature measuring point forming temperature->
Figure SMS_10
Gather (S)>
Figure SMS_8
Temperature measuring point forming temperature->
Figure SMS_14
Gather (S)>
Figure SMS_5
Temperature measuring point forming temperature->
Figure SMS_16
A collection, wherein->
Figure SMS_1
，/>
Figure SMS_13
，
Figure SMS_3
，/>
Figure SMS_11
And->
Figure SMS_7
For the mapping relation +.>
Figure SMS_12
And->
Figure SMS_2
Is a mapping relation;
the distance between every two adjacent thermal imagers is L, the moving speed of the steel belt is V, the temperature of the point A on the steel belt is detected, and the point A is positioned on
Figure SMS_19
The detection time of the temperature measuring point is +.>
Figure SMS_23
Point A is from->
Figure SMS_26
Temperature measuring point to +.>
Figure SMS_17
The time of the temperature measuring point is->
Figure SMS_21
，/>
Figure SMS_24
The detection time of the temperature measuring point is +.>
Figure SMS_27
Point A is from->
Figure SMS_18
Temperature measuring point to +.>
Figure SMS_22
The time of the temperature measuring point is->
Figure SMS_25
，/>
Figure SMS_28
The detection time of the temperature measuring point is +.>
Figure SMS_20
The method comprises the steps of carrying out a first treatment on the surface of the The point A is any point on the steel belt 2 and is only marked for use in temperature detection;
the control system is used for controlling the control system according to the detection time
Figure SMS_34
From->
Figure SMS_31
、/>
Figure SMS_42
、/>
Figure SMS_33
Selecting temperature element +.>
Figure SMS_41
、/>
Figure SMS_35
、/>
Figure SMS_39
Control system pair->
Figure SMS_30
、/>
Figure SMS_40
、/>
Figure SMS_37
And calculating and regulating. Through setting up the temperature measurement point and calculating steel band velocity of movement, realize the fixed point temperature monitoring to the same position on the steel band, realize controlling and monitoring the accurate of steel band forced air cooling effect, realize the accurate adjustment to steel band forced air cooling efficiency. According to the detection time->
Figure SMS_45
From->
Figure SMS_32
、/>
Figure SMS_44
、/>
Figure SMS_36
Temperature element +.>
Figure SMS_43
、/>
Figure SMS_29
、/>
Figure SMS_38
Representing the temperature at the same location on the strip at different times.
The temperature of the steel belt which meets the production requirement after air cooling is
Figure SMS_46
；
The control system pair
Figure SMS_49
、/>
Figure SMS_50
、/>
Figure SMS_53
Cooling calculation and p->
Figure SMS_48
And->
Figure SMS_51
The temperature reduction calculation is carried out, specifically:
Figure SMS_52
、/>
Figure SMS_54
and +.>
Figure SMS_47
；
If it is
Figure SMS_55
And->
Figure SMS_56
Or->
Figure SMS_57
And is also provided with
Figure SMS_58
、/>
Figure SMS_59
Then indicate +.>
Figure SMS_60
At the temperature measuring point or->
Figure SMS_61
The air outlet quantity of the air cooling plates at the temperature measuring points is insufficient, but the air cooling cooperation of the three air cooling plates accords with the air cooling requirement of the steel belt, and a control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet machine;
if it is
Figure SMS_62
And->
Figure SMS_63
The air outlet quantity of the air cooling plate and the power of the air inlet machine meet the air cooling requirement, and the control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet machine;
except the two conditions meeting the air cooling requirements of the steel belt, any other conditions are not met with the air cooling requirements of the steel belt, and the control system is required to adjust the flow rate of the regulating valve or adjust the power of the air inlet fan or adjust the flow rate of the regulating valve and the power of the air inlet fan simultaneously.
One of the cases that does not meet the air cooling requirement of the steel strip is as follows:
Figure SMS_64
and->
Figure SMS_65
The air outlet quantity of the air cooling plate and the power of the air inlet machine are not in accordance with the air cooling requirement, and the control system needs to adjust the flow quantity of the regulating valve and the power of the air inlet machine.
Compared with the prior art, the invention has the following beneficial effects:
1. the thermal imaging devices are equidistantly arranged on the supporting plate positioned on one side of the steel belt, the thermal imaging devices form temperature measuring points and are matched with each other, fixed-point temperature monitoring on the same position on the steel belt is achieved through setting the temperature measuring points and calculating the moving speed of the steel belt, accurate control of the air cooling effect of the steel belt is achieved, and accurate adjustment of the air cooling efficiency of the steel belt is achieved.
2. The heat roller absorbs heat on the steel belt and transmits the heat to the heat conducting shaft, the heat conducting shaft is rotatably arranged on the supporting plate, one end of the heat conducting shaft is connected with a thermoacoustic engine assembly in the thermoacoustic refrigerator, the heat conducting shaft is used as a heat source and used for providing heat for the thermoacoustic engine assembly to generate input sound waves, the heat of the steel belt is directly utilized for refrigerating, the heat of the steel belt is utilized, the reutilization of heat energy is realized, and the energy-saving effect is achieved.
3. The vibration source works under the control of the control system, vibrates in the air cooling plate, and simultaneously causes the vibration of surrounding air, so that the air is outwards diffused in a wave form, hot air is extruded to the periphery in a wave form by low-temperature air, the hot air is separated from the steel strip, and the problem that the heat radiation efficiency of the steel strip outwards is low due to the fact that the hot air is around the steel strip is solved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a right side semi-sectional view of the overall structure of the present invention;
FIG. 2 is a front elevational view of the overall structure of the present invention;
FIG. 3 is a right side cross-sectional view of the air panel of the present invention;
fig. 4 is a schematic view of a thermal imager during steel strip production according to the present invention.
In the figure:
1. a pipe network box; 101. an intake manifold; 101a, an air inlet branch pipe; 102. a wind inlet machine; 103. a blower fan; 104. a gas outlet main pipe; 105. an air suction port; 106. an air cooling plate; 106a, vibration source; 106b, an air outlet; 107. a support plate; 108. a heat roller; 109. a cold air pipe; 110. a wind collecting box; 111. a refrigeration box; 112. a support frame; 113. a hollow shaft motor;
2. a steel strip; 3. a thermal imager.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the cooling device comprises a pipe network box 1, support frames 112 are symmetrically arranged below the pipe network box 1, support plates 107 are symmetrically arranged on the support frames 112, side plates are arranged outside the support frames 112 below the pipe network box 1, a plurality of hot rolls 108 are arranged on the two support plates 107, and a steel belt 2 to be air-cooled passes through the hot rolls 108;
an air pipe is arranged in the pipe network box 1 and comprises an air inlet main pipe 101 and an air outlet main pipe 104, an air inlet fan 102 is arranged on one side of the pipe network box 1, one end of the air inlet main pipe 101 is connected with the air inlet fan 102, three groups of air inlet branch pipes 101a are arranged on the air inlet main pipe 101, and one group of air inlet branch pipes 101a comprise two air inlet branch pipes 101a;
three air cooling plates 106 are arranged below the pipe network box 1, one air cooling plate 106 is rotationally connected with one air inlet branch pipe 101a, the air cooling plate 106 is communicated with the air inlet branch pipe 101a, and an air outlet 106b is formed in the air cooling plate 106.
The air inlet 105 is arranged on one side of the air cooling plate 106 positioned at the left side and the middle position below the pipe network box 1, the air inlet 105 and the air outlet 106b are distributed on two sides of the air cooling plate 106, one end of the air outlet main pipe 104 is connected with the air outlet 103, the air outlet main pipe 104 is connected with the two air inlets 105, and the air outlet direction of the air outlet 103 is opposite to the advancing direction of the steel belt 2.
The air inlet fan 102 extracts low-temperature air and infuses the air into the air inlet branch pipe 101a, the air cooling plate 106 sprays the low-temperature air onto the hot steel strip 2 through the air outlet 106b, the spraying direction of the low-temperature air is opposite to the moving direction of the steel strip 2, the air cooling plate 106 sprays the low-temperature air onto the steel strip 2, the low-temperature air pushes the hot air above the steel strip 2 to the rear of the advancing direction of the steel strip 2, the air outlet fan 103 extracts the air at the air inlet 105 through the air outlet main pipe 104, the air inlet 105 extracts the hot air above the steel strip 2, the air cooling plate 106 pushes the hot air above the steel strip 2 to the vicinity of the air inlet 105 through air flow, the air cooling plate 106 is matched with the air inlet 105, the flowing speed of the air above the steel strip 2 is accelerated, the air cooling efficiency of the steel strip 2 is accelerated, and the steel strip 2 is cooled and cooled by the air cooling.
A vibration source 106a is arranged in the air cooling plate 106 at the position of the air outlet 106a, and the vibration source 106a is connected with a control system. The vibration source 106a operates under the control of the control system, and vibrates in the air cooling plate 106, and the vibration source 106a vibrates while causing the vibration of surrounding air, and the low-temperature air vibrating in the air cooling plate 106 is extruded by the low-temperature air entering subsequently and is outwards diffused in a wave form from the air outlet 106a, the flowing direction of the low-temperature air is opposite to the moving direction of the steel strip 2, and the hot air above the steel strip 2 is extruded to the air suction opening 105 by the low-temperature air. The low-temperature air is outwards diffused in a wave form to extrude the hot air above the steel belt 2, so that the hot air above the steel belt 2 is isolated, and the problem that the heat radiation efficiency of the steel belt 2 outwards is low due to the fact that the hot air is around the steel belt 2 is solved.
A cooling box 111 is arranged at one side of the side plate corresponding to the position of each hot roller 108, a filter screen is arranged at one side of the cooling box 111, a thermoacoustic refrigerator is arranged in the cooling box 111, the upper parts of the cooling boxes 111 are connected with a wind collecting box 110 through pipelines, and the upper parts of the wind collecting boxes 110 are connected with the air inlet of the air inlet machine 102 through a cold air pipe 109;
the middle part of the heat roller 108 is inserted with a heat conducting shaft, the heat conducting shaft is rotatably arranged on the two supporting plates 107, and one end of the heat conducting shaft is connected with the thermoacoustic refrigerator. The heat roller 108 absorbs heat on the steel belt 2 and transfers the heat to the heat conducting shaft, the heat conducting shaft is rotatably arranged on the supporting plate 107, one end of the heat conducting shaft is connected with the thermoacoustic refrigerator, the thermoacoustic refrigerator comprises a thermoacoustic engine component and a thermoacoustic refrigerator component, the heat conducting shaft is connected with the thermoacoustic engine component and is a heat source, and the heat conducting shaft provides heat for the thermoacoustic engine component to generate input sound waves. The thermo-acoustic refrigerator is used for refrigerating in the refrigerating box 111, the air inlet fan 102 is used for extracting air in the air collecting box 110, so that external air enters the refrigerating box 111 through a filter screen of the refrigerating box 111, the temperature is reduced in the refrigerating box 111, the cooled air enters the air collecting box 110, and finally, the cooled air enters the air inlet manifold 101 through the air inlet fan 102. The low-temperature air is sprayed out from the air inlet branch pipe 101a to realize the cooling of the steel belt 2.
A group of air inlet branch pipes 101a are respectively sleeved with a hollow shaft motor 113, the output end of the hollow shaft motor 113 is connected to the side wall of the air cooling plate 106, and the hollow shaft motor 113 is fixed on the lower end face of the pipe network box 1;
a control system is arranged in the pipe network box 1 and is electrically connected with the thermal imaging instrument 3 and the hollow shaft motor 113;
each air inlet branch pipe 101a is connected with a regulating valve in series, and the regulating valve is connected with a control system. The air cooling plate 106 is used for cooling the steel belt 2, the thermal imager 3 is an online infrared thermal imager, the thermal imager 3 transmits detected temperature data to the control system, the control system analyzes and calculates the data transmitted by the thermal imager 3, and then the power of the air inlet fan 102 is adjusted or the hollow shaft motor 113 is rotated by a certain angle according to the calculation result; the hollow shaft motor 113 rotates to enable the air outlet 106b of the air cooling plate 106 to incline downwards or incline upwards, the air outlet 106b inclines downwards to enhance the air cooling effect on the steel strip 2, the upward incline is used for weakening the air cooling effect on the steel strip 2, and the adjustment of the power of the air inlet fan 102 is also used for enhancing or weakening the air cooling effect. The regulating valve is an electric regulating valve and is used for regulating and controlling the air flow in the air inlet branch pipe 101a, and further is used for controlling the air outlet of the air cooling plate 106.
Three thermal imagers 3 are arranged on the supporting plate 107, and the thermal imagers 3 measure the temperature of the steel belt 2.
The cooling device comprises a fixed-point detection system which consists of three thermal imagers 3 and a control system,
each thermal imager 3 is located below the side of the air cooling plate 106 and far away from the air outlet 106b, and one thermal imager 3 corresponds to one air cooling plate 106;
three thermal imagers 3 are sequentially formed on the support plate 107
Figure SMS_71
Temperature measuring point, < >>
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Temperature measuring point +.>
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Temperature measuring point (I)>
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Temperature measuring point forming temperature->
Figure SMS_79
Gather (S)>
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Temperature measuring point forming temperature->
Figure SMS_77
Gather (S)>
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Temperature measuring point forming temperature->
Figure SMS_81
A collection, wherein,
Figure SMS_66
，/>
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，
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，/>
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and->
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For the mapping relation +.>
Figure SMS_75
And->
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Is a mapping relation;
the distance between every two adjacent thermal imagers 3 is L, the moving speed of the steel belt 2 is V, and the point A on the steel belt 2 is selected for temperature detection, wherein the point A is positioned at
Figure SMS_82
The detection time of the temperature measuring point is +.>
Figure SMS_88
Point A is from->
Figure SMS_91
Temperature measuring point to +.>
Figure SMS_83
The time of the temperature measuring point is->
Figure SMS_86
，/>
Figure SMS_89
The detection time of the temperature measuring point is +.>
Figure SMS_92
Point A is from->
Figure SMS_85
Temperature measuring point to +.>
Figure SMS_87
The time of the temperature measuring point is->
Figure SMS_90
，/>
Figure SMS_93
The detection time of the temperature measuring point is +.>
Figure SMS_84
；
The control system is used for controlling the control system according to the detection time
Figure SMS_96
From->
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、/>
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、/>
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Selecting temperature element +.>
Figure SMS_97
、/>
Figure SMS_101
、/>
Figure SMS_103
Control system pair->
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、/>
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、/>
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And calculating and regulating. Through setting up the temperature measurement point and to the calculation of steel band 2 velocity of movement, realize the fixed point detection to the same position on the steel band 2, realize the accurate detection to steel band 2 forced air cooling effect, be convenient for control steel band 2's forced air cooling efficiency.
The temperature of the steel belt 2 which meets the production requirement after air cooling is
Figure SMS_104
；
Control system pair
Figure SMS_107
、/>
Figure SMS_108
、/>
Figure SMS_110
Cooling calculation and p->
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And->
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The temperature reduction calculation is carried out, specifically: />
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、/>
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And +.>
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；
If it is
Figure SMS_113
And->
Figure SMS_114
Or->
Figure SMS_115
And is also provided with
Figure SMS_116
、/>
Figure SMS_117
Then indicate +.>
Figure SMS_118
At the temperature measuring point or->
Figure SMS_119
The air outlet quantity of the air cooling plates 106 at the temperature measuring points is insufficient, but the air cooling cooperation of the three air cooling plates 106 accords with the air cooling requirement of the steel belt 2, and a control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet fan 102;
if it is
Figure SMS_120
And->
Figure SMS_121
The air output of the air cooling plate 106 and the power of the air inlet fan 102 meet the air cooling requirement, and the control system does not need to adjust the flow rate of the regulating valve and the power of the air inlet fan 102;
except for the two conditions meeting the air cooling requirement of the steel strip 2, any other condition does not meet the air cooling requirement of the steel strip 2, and the control system needs to adjust the flow rate of the regulating valve or adjust the power of the air inlet fan 102 or adjust the flow rate of the regulating valve and the power of the air inlet fan 102 simultaneously.
One of the cases that does not meet the air cooling requirement of the steel strip 2 is as follows:
Figure SMS_122
and->
Figure SMS_123
Indicating that the air output of the air cooling plate 106 and the power of the air inlet machine 102 do not meet the air cooling requirement, the control system needs to adjust the flow rate of the adjusting valve and the power of the air inlet machine 102.
The working principle of the invention is as follows:
the steel belt 2 passes through the hot rollers 108 under the traction of the traction mechanism, heat is transferred to the hot rollers 108, one end of the heat conducting shaft is connected with a thermoacoustic engine assembly in the thermoacoustic refrigerator, the heat conducting shaft is used as a heat source for providing heat for the thermoacoustic engine assembly to generate input sound waves, the thermoacoustic refrigerator is used for refrigerating in the refrigerating box 111, the heat of the steel belt 2 is utilized by adopting the thermoacoustic refrigerator, the reutilization of heat energy is realized, and the energy-saving effect is achieved.
The air inlet fan 102 extracts air in the air collecting box 110, so that external air enters the refrigerating box 111 through a filter screen of the refrigerating box 111, the temperature in the refrigerating box 111 is reduced, the cooled air enters the air collecting box 110, and finally enters the air inlet manifold 101 through the air inlet fan 102.
The air inlet fan 102 extracts low-temperature air and infuses the air into the air inlet branch pipe 101a, the air cooling plate 106 sprays the low-temperature air onto the hot steel strip 2 through the air outlet 106b, the spraying direction of the low-temperature air is opposite to the moving direction of the steel strip 2, the air cooling plate 106 sprays the low-temperature air onto the steel strip 2, the low-temperature air pushes the hot air above the steel strip 2 to the rear of the advancing direction of the steel strip 2, the air outlet fan 103 extracts the air at the air inlet 105 through the air outlet main pipe 104, the air inlet 105 extracts the hot air above the steel strip 2, the air cooling plate 106 pushes the hot air above the steel strip 2 to the vicinity of the air inlet 105 through air flow, the air cooling plate 106 is matched with the air inlet 105, the flowing speed of the air above the steel strip 2 is accelerated, the air cooling efficiency of the steel strip 2 is accelerated, and the steel strip 2 is cooled and cooled by the air cooling.
The vibration source 106a operates under the control of the control system, and vibrates in the air cooling plate 106, and the vibration source 106a vibrates while causing the vibration of surrounding air, and the low-temperature air vibrating in the air cooling plate 106 is extruded by the low-temperature air entering subsequently and is outwards diffused in a wave form from the air outlet 106a, the flowing direction of the low-temperature air is opposite to the moving direction of the steel strip 2, and the hot air above the steel strip 2 is extruded to the air suction opening 105 by the low-temperature air. The low-temperature air diffuses outwards in the form of waves, extrudes hot air above the steel strip 2, and cuts off the existence of the hot air above the steel strip 2.
The control system detects the cooling effect of the steel belt 2 through the thermal imager 3, the thermal imager 3 transmits temperature data formed by detection to the control system, the control system calculates the temperature data and obtains a cooling result, and the regulating valve and the air inlet fan 102 are regulated or not regulated through the cooling result.
Three thermal imagers 3 are sequentially formed on the support plate 107
Figure SMS_130
Temperature measuring point, < >>
Figure SMS_128
Temperature measuring point +.>
Figure SMS_136
Temperature measuring point (I)>
Figure SMS_129
Temperature measuring point forming temperature->
Figure SMS_138
Gather (S)>
Figure SMS_131
Temperature measuring point forming temperature->
Figure SMS_139
Gather (S)>
Figure SMS_125
Temperature measuring point forming temperature->
Figure SMS_133
A collection, wherein,
Figure SMS_124
，/>
Figure SMS_134
，
Figure SMS_127
，/>
Figure SMS_135
and->
Figure SMS_132
For the mapping relation +.>
Figure SMS_137
And->
Figure SMS_126
Is a mapping relation;
the distance between every two adjacent thermal imagers 3 is L, the moving speed of the steel belt 2 is V, the temperature detection is carried out on the point A on the steel belt 2, and the point A is arranged on
Figure SMS_142
The detection time of the temperature measuring point is +.>
Figure SMS_143
Point A is from->
Figure SMS_148
Temperature measuring point to +.>
Figure SMS_141
The time of the temperature measuring point is->
Figure SMS_145
The detection time of the temperature measuring point is +.>
Figure SMS_147
Point A is from->
Figure SMS_150
Temperature measuring point to +.>
Figure SMS_140
The time of the temperature measuring point is->
Figure SMS_144
，/>
Figure SMS_146
The detection time of the temperature measuring point is +.>
Figure SMS_149
；
The control system is used for controlling the control system according to the detection time
Figure SMS_152
From->
Figure SMS_154
、/>
Figure SMS_158
、/>
Figure SMS_153
Selecting temperature element +.>
Figure SMS_155
、/>
Figure SMS_157
、/>
Figure SMS_160
Control system pair->
Figure SMS_151
、/>
Figure SMS_156
、/>
Figure SMS_159
And calculating and regulating. Through setting up the temperature measurement point and to the calculation of steel band 2 velocity of movement, realize the fixed point detection to the same position on the steel band 2, realize the accurate detection to steel band 2 forced air cooling effect, be convenient for control steel band 2's forced air cooling efficiency.
The temperature of the steel belt 2 which meets the production requirement after air cooling is
Figure SMS_161
The numerical value is set by the production personnel according to the actual production requirement;
control system pair
Figure SMS_164
、/>
Figure SMS_166
、/>
Figure SMS_168
Cooling calculation and p->
Figure SMS_163
And->
Figure SMS_165
The temperature reduction calculation is carried out, specifically: />
Figure SMS_167
、/>
Figure SMS_169
And +.>
Figure SMS_162
；/>
If it is
Figure SMS_170
And->
Figure SMS_171
Or->
Figure SMS_172
And is also provided with
Figure SMS_173
、/>
Figure SMS_174
Then indicate +.>
Figure SMS_175
At the temperature measuring point or->
Figure SMS_176
The air outlet quantity of the air cooling plates 106 at the temperature measuring points is insufficient, but the air cooling cooperation of the three air cooling plates 106 accords with the air cooling requirement of the steel belt 2, and a control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet fan 102;
if it is
Figure SMS_177
And->
Figure SMS_178
The air output of the air cooling plate 106 and the power of the air inlet fan 102 meet the air cooling requirement, and the control system does not need to adjust the flow rate of the regulating valve and the power of the air inlet fan 102;
except for the two conditions meeting the air cooling requirement of the steel strip 2, any other condition does not meet the air cooling requirement of the steel strip 2, and the control system needs to adjust the flow rate of the regulating valve or adjust the power of the air inlet fan 102 or adjust the flow rate of the regulating valve and the power of the air inlet fan 102 simultaneously.
One of the cases that does not meet the air cooling requirement of the steel strip 2 is as follows:
Figure SMS_179
and->
Figure SMS_180
Indicating that the air output of the air cooling plate 106 and the power of the air inlet machine 102 do not meet the air cooling requirement, the control system needs to adjust the flow rate of the adjusting valve and the power of the air inlet machine 102. After the adjustment, the control system continues to detect the cooling condition of the steel belt 2 by using the thermal imaging device 3, and if the cooling requirement of the steel belt 2 is not met, the flow of the regulating valve and the power of the air inlet machine 102 are continuously regulated and controlled until the cooling requirement of the steel belt 2 is met. The steel belt is realized through the temperature monitoring of the steel belt 2 by the thermal imager 3 and the calculation of the temperature data transmitted by the thermal imager 3 by the control system2 intelligent regulation and control of air cooling.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. An air-cooled steel band cooling device which is characterized in that: the cooling device comprises a pipe network box (1), support frames (112) are symmetrically arranged below the pipe network box (1), support plates (107) are symmetrically arranged on the support frames (112), side plates are arranged outside the support frames (112) below the pipe network box (1), a plurality of hot rolls (108) are arranged on the two support plates (107), and a steel belt (2) to be air-cooled passes through the hot rolls (108);
an air pipe is arranged in the pipe network box (1), an air inlet fan (102) is arranged on one side of the pipe network box (1), the air inlet fan (102) is connected with the air pipe, three air cooling plates (106) are arranged below the pipe network box (1), the air cooling plates (106) are communicated with the air pipe, and an air outlet (106 b) is formed in the air cooling plates (106);
three thermal imagers (3) are arranged on the supporting plate (107), and the thermal imagers (3) measure the temperature of the steel belt (2).
2. An air-cooled steel strip cooling device as claimed in claim 1 wherein: the air pipe comprises an air inlet main pipe (101) and an air outlet main pipe (104), one end of the air inlet main pipe (101) is connected with an air inlet fan (102), three groups of air inlet branch pipes (101 a) are arranged on the air inlet main pipe (101), one group of air inlet branch pipes (101 a) comprises two air inlet branch pipes (101 a), and one group of air inlet branch pipes (101 a) are rotationally connected with an air cooling plate (106);
the utility model discloses a steel band (2) of a pipe network case, including pipe network case (1), air inlet (105) are installed in air-cooled panel (106) one side that is located left side and intermediate position to pipe network case (1), air inlet (105) and air outlet (106 b) distribute in the both sides of air-cooled panel (106), air outlet house steward (104) one end is connected with air-out machine (103), and two air inlets (105) are connected to air-out house steward (104), the air-out direction of air-out machine (103) is opposite with the advancing direction of steel band (2).
3. An air-cooled steel strip cooling device as claimed in claim 2 wherein: a cooling box (111) is arranged at one side of the side plate corresponding to the position of each hot roller (108), a filter screen is arranged at one side of the cooling box (111), a thermoacoustic refrigerator is arranged in the cooling box (111), a plurality of air collecting boxes (110) are connected above the cooling boxes (111) through pipelines, and the upper part of each air collecting box (110) is connected with an air inlet of an air inlet machine (102) through a cooling air pipe (109);
the middle part of the hot roller (108) is inserted with a heat conducting shaft, the heat conducting shaft is rotatably arranged on the two supporting plates (107), and one end of the heat conducting shaft is connected with the thermoacoustic refrigerator.
4. An air-cooled steel strip cooling device as claimed in claim 3 wherein: the air inlet branch pipes (101 a) are sleeved with hollow shaft motors (113), the output ends of the hollow shaft motors (113) are connected to the side wall of the air cooling plate (106), and the hollow shaft motors (113) are fixed on the lower end face of the pipe network box (1);
a control system is arranged in the pipe network box (1), and the control system is electrically connected with the thermal imager (3) and the hollow shaft motor (113);
each air inlet branch pipe (101 a) is connected with a regulating valve in series, and the regulating valve is connected with a control system.
5. An air-cooled steel strip cooling device as claimed in claim 1 wherein: a vibration source (106 a) is arranged in the air cooling plate (106) at the position of the air outlet (106 a), and the vibration source (106 a) is connected with a control system.
6. An air-cooled steel strip cooling device as claimed in claim 1 wherein: each thermal imager (3) is positioned below the side of the air cooling plate (106) and far away from the air outlet (106 b), and one thermal imager (3) corresponds to one air cooling plate (106); the cooling device comprises a fixed point detection system, the fixed point detection system consists of three thermal imagers (3) and a control system, and the three thermal imagers (3) are sequentially formed on a supporting plate (107)
Figure QLYQS_7
Temperature measuring point, < >>
Figure QLYQS_6
Temperature measuring point +.>
Figure QLYQS_14
Temperature measuring point, said->
Figure QLYQS_8
Temperature measuring point forming temperature->
Figure QLYQS_12
Gather (S)>
Figure QLYQS_4
Temperature measuring point forming temperature->
Figure QLYQS_10
Gather (S)>
Figure QLYQS_5
Temperature measuring point forming temperature->
Figure QLYQS_11
A collection, wherein->
Figure QLYQS_1
，
Figure QLYQS_13
，/>
Figure QLYQS_9
，/>
Figure QLYQS_16
And->
Figure QLYQS_3
For the mapping relation +.>
Figure QLYQS_15
And->
Figure QLYQS_2
Is a mapping relation;
the distance between every two adjacent thermal imagers (3) is L, the moving speed of the steel belt (2) is V, the temperature detection is carried out on the point A on the steel belt 2, and the point A is arranged on the position
Figure QLYQS_19
The detection time of the temperature measuring point is +.>
Figure QLYQS_21
Point A is from->
Figure QLYQS_24
Temperature measuring point to +.>
Figure QLYQS_18
The time of the temperature measuring point is->
Figure QLYQS_23
，
Figure QLYQS_25
The detection time of the temperature measuring point is +.>
Figure QLYQS_27
Point A is from->
Figure QLYQS_17
Temperature measuring point to +.>
Figure QLYQS_22
The time of the temperature measuring point is->
Figure QLYQS_26
，/>
Figure QLYQS_28
The detection time of the temperature measuring point is +.>
Figure QLYQS_20
；
The control system is used for controlling the control system according to the detection time
Figure QLYQS_30
From->
Figure QLYQS_32
、/>
Figure QLYQS_36
、/>
Figure QLYQS_31
Selecting temperature element +.>
Figure QLYQS_33
、/>
Figure QLYQS_37
、/>
Figure QLYQS_38
Control system pair->
Figure QLYQS_29
、/>
Figure QLYQS_34
、/>
Figure QLYQS_35
And calculating and regulating.
7. An air-cooled steel strip cooling apparatus as claimed in claim 6 wherein:
the temperature of the steel belt (2) which meets the production requirement after air cooling is
Figure QLYQS_39
；
The control system pair
Figure QLYQS_41
、/>
Figure QLYQS_43
、/>
Figure QLYQS_45
Cooling calculation and p->
Figure QLYQS_42
And->
Figure QLYQS_44
The temperature reduction calculation is carried out, specifically: />
Figure QLYQS_46
、
Figure QLYQS_47
And +.>
Figure QLYQS_40
；
If it is
Figure QLYQS_48
And->
Figure QLYQS_49
Or->
Figure QLYQS_50
And->
Figure QLYQS_51
、
Figure QLYQS_52
Then indicate +.>
Figure QLYQS_53
At the temperature measuring point or->
Figure QLYQS_54
The air outlet quantity of the air cooling plates (106) at the temperature measuring points is insufficient, but the air cooling cooperation of the three air cooling plates (106) accords with the air cooling requirement of the steel belt (2), and a control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet machine (102);
if it is
Figure QLYQS_55
And->
Figure QLYQS_56
The air outlet quantity of the air cooling plate (106) and the power of the air inlet machine (102) meet the air cooling requirement, and the control system does not need to adjust the flow quantity of the regulating valve and the power of the air inlet machine (102). />
CN202310278634.2A 2023-03-21 2023-03-21 Air-cooled steel band cooling device Active CN116254407B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310278634.2A CN116254407B (en) 2023-03-21 2023-03-21 Air-cooled steel band cooling device

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CN116254407B CN116254407B (en) 2024-01-30

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04118110A (en) * 1990-09-10 1992-04-20 Nissho Iwai Corp Device for cooling continuous strip like sheet
CN102517430A (en) * 2011-12-15 2012-06-27 东北大学 Strong wind cooling system for medium plate heat treatment
WO2013094553A1 (en) * 2011-12-22 2013-06-27 株式会社Ｌｉｘｉｌ Firing furnace

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4118110B2 (en) * 2002-09-18 2008-07-16 小島プレス工業株式会社 Glove box locking device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04118110A (en) * 1990-09-10 1992-04-20 Nissho Iwai Corp Device for cooling continuous strip like sheet
CN102517430A (en) * 2011-12-15 2012-06-27 东北大学 Strong wind cooling system for medium plate heat treatment
WO2013094553A1 (en) * 2011-12-22 2013-06-27 株式会社Ｌｉｘｉｌ Firing furnace

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