CN102928461B - For measuring the experimental provision of the junker mold coefficient of heat transfer - Google Patents
For measuring the experimental provision of the junker mold coefficient of heat transfer Download PDFInfo
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- CN102928461B CN102928461B CN201210416968.3A CN201210416968A CN102928461B CN 102928461 B CN102928461 B CN 102928461B CN 201210416968 A CN201210416968 A CN 201210416968A CN 102928461 B CN102928461 B CN 102928461B
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Abstract
The invention discloses a kind of experimental provision for measuring the junker mold coefficient of heat transfer, comprising mold, ingot casting, cooling system, temperature acquisition system, heating arrangement and coefficient of heat transfer computing module.The present invention is by being connected the input end of temperature acquisition system with cooling system, mold, ingot casting respectively, and output terminal is connected with coefficient of heat transfer computing module, mold and ingot casting is contacted with each other, and ingot casting and heating arrangement is contacted with each other; Simultaneously, arrange flowmeter in a cooling system to be controlled intensity of cooling in device, and adopt the temperature of temperature acquisition system to cooling system, mold and ingot casting diverse location to carry out Real-time Collection, equal with the heat that chilled water is taken away according to the heat entering mold during steady state heat transfer, the coefficient of heat transfer of diverse location under calculating different in flow rate.Structure is simple, easy to operate, and accuracy is high.
Description
Technical field
The invention belongs to measurement mechanism design field, particularly a kind of experimental provision for measuring the junker mold coefficient of heat transfer.
Background technology
At present, continuous casting produces the prevailing technology that steel billet has been steel and iron industry, but at special steel, shaped blank, the production fields such as super large wide and thick slab, adopt mold to produce still in the highest flight.The cooling of tradition mold naturally cools by cross-ventilation, and cool time is long, and mold is long by high-temperature time, cause the material heat resistant requirements of traditional mold high, and volume requirement is large.Owing to bearing high temperature for a long time, mold is short for serviceable life, and cost is high.And new-type junker mold, its cooling adopts Forced water cooling, and substantially reduce cool time, the temperature that mold bears is low, low to material heat resistant requirements, and volume is little, long service life, and cost is low.If but the cooling velocity of junker mold is too fast, then easily make ingot solidification too fast, produce stress and concentrate, cause the casting flaws such as ingot casting crackle and distortion, therefore effectively the heat transfer process controlled between ingot casting and mold is the core technology that junker mold is produced.Mold interior metal process of setting very complicated, adopts the coefficient of heat transfer directly measured in its process of setting between ingot casting and mold more difficult, based on the coefficient of heat transfer between easy empirical model reverse ingot casting and mold just show significant.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of in junker mold technological process; can by simulation mold cooling procedure, mensuration set point temperature; and combine the anti-experimental provision pushing away the junker mold coefficient of heat transfer of measurement numerical value, and have the advantages that structure is simple, easy to operate, accuracy is high.
For solving the problems of the technologies described above; the invention provides a kind of experimental provision for measuring the junker mold coefficient of heat transfer; comprise mold; ingot casting; cooling system; for carrying out the temperature acquisition system of Real-time Collection to the temperature of described cooling system, described mold, described ingot casting three diverse location, for the heating arrangement that heats described ingot casting and the coefficient of heat transfer computing module of data analysis process for gathering described temperature acquisition system.The input end of described temperature acquisition system is connected with described cooling system, described mold, described ingot casting respectively; The output terminal of described temperature acquisition system is connected with described coefficient of heat transfer computing module; Described heating arrangement contacts with described ingot casting.
Further, described cooling system comprises: cooling water pipe, for controlling the control device of described cooling system intensity of cooling.Described mold is arranged on the middle part of described cooling water pipe, and mold inner chamber contacts with described cooling water pipe outer wall; Described control device is arranged between the water inlet of described cooling water pipe and described mold; The water inlet of described cooling water pipe is connected with described temperature acquisition system input end by the first temperature element; The water delivering orifice of described cooling water pipe is connected with described temperature acquisition system input end by the second temperature element; Described mold is connected with described temperature acquisition system input end by the 3rd temperature element.
Further, described coefficient of heat transfer computing module comprises: data receipt unit and data processing unit;
Described data receipt unit, receives the temperature parameter of described temperature acquisition system Real-time Collection; Described data processing unit, according to described temperature parameter, the coefficient of heat transfer of described mold and described ingot casting under calculating different intensity of cooling.
Further, the described control device for Controlled cooling system intensity of cooling is flowmeter.
Further, described first temperature element, described second temperature element and described 3rd temperature element are thermopairs.
Further, described heating arrangement comprises: refractory brick heating plate; Described refractory brick heating plate contacts with described ingot casting.
Further, the present invention also comprises: heat-insulation system; Described chilled water system, described mold, described ingot casting and described heating arrangement are placed in described heat-insulation system.
Further, described heat-insulation system comprises: rustless steel container and high-temperature refractory; Described chilled water system, described mold, described ingot casting and described heating arrangement three are placed in described rustless steel container, and described high-temperature refractory is placed in described rustless steel container inwall place for insulation.
Further, described high-temperature refractory is refractory fiber cotton.
A kind of experimental provision for measuring the junker mold coefficient of heat transfer provided by the invention, by the input end of temperature acquisition system is connected with cooling system, mold, ingot casting respectively, output terminal is connected with coefficient of heat transfer computing module, mold and ingot casting are contacted with each other, ingot casting and heating arrangement are contacted with each other; Simultaneously, arrange flowmeter in a cooling system to be controlled intensity of cooling in device, and adopt the temperature of temperature acquisition system to cooling system, mold and ingot casting diverse location to carry out Real-time Collection, equal with the heat that chilled water is taken away according to the heat entering mold during steady state heat transfer, the coefficient of heat transfer of diverse location under calculating different in flow rate.The present invention can not only the contact process of mold 2 and ingot casting 3 in physical simulation production run, and adopt the temperature of remote digital temperature acquisition system to ingot casting 3 and mold 2 zones of different carry out online in real time, fixed point gathers.Meanwhile, it is simple that the present invention also has structure, easy to operate, and the feature that accuracy is high.
Accompanying drawing explanation
The workflow schematic diagram of a kind of experimental provision for measuring the junker mold coefficient of heat transfer that Fig. 1 provides for the embodiment of the present invention.
The principle of work schematic diagram of a kind of experimental provision for measuring the junker mold coefficient of heat transfer that Fig. 2 provides for the embodiment of the present invention.
Wherein, 1-cooling water pipe, 2-mold, 3-ingot casting, 4-refractory brick heating plate, 5-cooling water pipe water inlet, 6-cooling water pipe water delivering orifice, 7-flowmeter.
Embodiment
Below in conjunction with accompanying drawing, embodiment provided by the invention is described in further detail.
See Fig. 1,2, a kind of experimental provision for measuring the junker mold coefficient of heat transfer that the embodiment of the present invention provides, comprises mold 2, ingot casting 3; Mold 2 and ingot casting 3 contact with each other.Simultaneously, also comprise: cooling system, for carrying out the temperature acquisition system of Real-time Collection to the temperature of cooling system, mold 2, ingot casting 3 three diverse location, for the heating arrangement that heats ingot casting 3 and the coefficient of heat transfer computing module of data analysis process for gathering temperature acquisition system.Wherein, the input end of temperature acquisition system is connected with cooling system, mold 2 and ingot casting 3 three respectively.The output terminal of temperature acquisition system is connected with coefficient of heat transfer computing module.Heating arrangement contacts with ingot casting 3.
In the present embodiment, chilled water system comprises cooling water pipe 1 and the control device for Controlled cooling system intensity of cooling.Wherein, mold 2 is arranged on the middle part of cooling water pipe 1, and mold 2 inner chamber contacts with cooling water pipe 1 outer wall.Control device is arranged between cooling water pipe water inlet 5 and mold 2.Meanwhile, cooling water pipe water inlet 5 is connected with temperature acquisition system input end by the first temperature element.Cooling water pipe water delivering orifice 6 is connected with temperature acquisition system input end by the second temperature element.Mold 2 is connected with temperature acquisition system input end by the 3rd temperature element.Wherein, the 3rd temperature element can carry out thermometric operation to many places diverse location on mold 2.
In the present embodiment, coefficient of heat transfer computing module comprises data receipt unit and data processing unit.Wherein data receipt unit, for receiving the temperature parameter of temperature acquisition system Real-time Collection; Data processing unit, according to described temperature parameter, the coefficient of heat transfer of described mold 2 and described ingot casting 3 under calculating different intensity of cooling.
Preferably, the control device for Controlled cooling system intensity of cooling is flowmeter.
Preferably, above-mentioned first temperature element, the second temperature element and the 3rd temperature element are thermopairs.
Meanwhile, a kind of experimental provision for measuring the junker mold coefficient of heat transfer that the embodiment of the present invention provides also comprises heat-insulation system.Wherein, heat-insulation system comprises a rustless steel container and high-temperature refractory.In the present embodiment, heating arrangement, cooling system, mold 2 and ingot casting 3 are placed in rustless steel container, and fill at rustless steel container inwall the object that high-temperature refractory has reached insulation.Preferably, high-temperature refractory is refractory fiber cotton.
The present invention in practical operation engineering, by temperature acquisition system and coefficient of heat transfer computing module synchronized links.First control by flowmeter the intensity of cooling that 7 control chilled water system, then adopt refractory brick heating plate 4 that ingot casting 3 is heated to uniform temperature.Simultaneously, utilize temperature acquisition system, the first temperature element, the second temperature element, the temperature of the 3rd temperature element to cooling water pipe water inlet 5, cooling water pipe water delivering orifice 6 and mold 2 inner chamber diverse location carry out Real-time Collection, complete when different chilled water flow velocity and organize test more.According to entering during steady state heat transfer, the heat of mold 2 is equal with the heat that chilled water is taken away, and calculates the coefficient of heat transfer of diverse location under different intensity of cooling.
A kind of experimental provision for measuring the junker mold coefficient of heat transfer provided by the invention, comprises mold 2, ingot casting 3, cooling system, temperature acquisition system, heating arrangement and coefficient of heat transfer computing module.The present invention is by being connected the input end of temperature acquisition system with cooling system, mold 2, ingot casting 3 respectively, and output terminal is connected with coefficient of heat transfer computing module, mold 2 and ingot casting 3 is contacted with each other, and ingot casting 3 and heating arrangement is contacted with each other; Simultaneously, arrange intensity of cooling in flowmeter 7 pairs of devices in a cooling system to be controlled, and adopt the temperature of temperature acquisition system to cooling system, mold 2 and ingot casting 3 diverse location to carry out Real-time Collection, according to entering during steady state heat transfer, the heat of mold is equal with the heat that chilled water is taken away, and calculates the coefficient of heat transfer of diverse location under different intensity of cooling.In actual applications, the present invention adopts refractory brick heating plate 4 pairs of ingot castings 3 to heat, mold water-cooling system is utilized to cool, the contact process of mold 2 and ingot casting 3 in not only physical simulation production run, whole heating arrangement and cooling system are fixed in a rustless steel container, fill in the material in some high-temperature flame-proof faces to reach the object of insulation around, and adopt the temperature of remote digital temperature acquisition system to ingot casting 3 and mold 2 zones of different to carry out online in real time, fix a point to gather.Meanwhile, it is simple that the present invention also has structure, easy to operate, and the feature that accuracy is high.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. for measuring an experimental provision for the junker mold coefficient of heat transfer, comprise mold (2), ingot casting (3), described mold (2) and described ingot casting (3) contact with each other; It is characterized in that, also comprise:
Cooling system, for carrying out the temperature acquisition system of Real-time Collection to the temperature of described cooling system, described mold (2), described ingot casting (3) three's diverse location, for the heating arrangement that heats described ingot casting (3) and the coefficient of heat transfer computing module of data analysis process for gathering described temperature acquisition system;
The input end of described temperature acquisition system is connected with described cooling system, described mold (2), described ingot casting (3) respectively;
The output terminal of described temperature acquisition system is connected with described coefficient of heat transfer computing module, and described temperature acquisition system adopts the temperature of remote transmission mode to described ingot casting and described mold zones of different to carry out online real-time, fixed point collection;
Described heating arrangement contacts with described ingot casting (3);
Described cooling system comprises: cooling water pipe (1), for controlling the control device of described cooling system intensity of cooling;
Described mold (2) is arranged on the middle part of described cooling water pipe (1), and mold (2) inner chamber contacts with described cooling water pipe (1) outer wall;
Described control device is arranged between the water inlet (5) of described cooling water pipe (1) and described mold (2);
The water inlet (5) of described cooling water pipe (1) is connected with described temperature acquisition system input end by the first temperature element;
The water delivering orifice (6) of described cooling water pipe (1) is connected with described temperature acquisition system input end by the second temperature element;
Described mold (2) is connected with described temperature acquisition system input end by the 3rd temperature element.
2. according to claim 1 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that, described coefficient of heat transfer computing module comprises: data receipt unit and data processing unit;
Described data receipt unit, receives the temperature parameter of described temperature acquisition system Real-time Collection;
Described data processing unit, according to described temperature parameter, the coefficient of heat transfer of described mold (2) and described ingot casting (3) under calculating different intensity of cooling.
3., according to claim 2 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that:
The described control device for Controlled cooling system intensity of cooling is flowmeter (7).
4., according to claim 3 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that:
Described first temperature element, described second temperature element and described 3rd temperature element are thermopairs.
5. according to claim 4 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that, described heating arrangement comprises: refractory brick heating plate (4); Described refractory brick heating plate (4) contacts with described ingot casting (3).
6. according to any one of claim 1-5 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that, also comprise: heat-insulation system; Described cooling system, described mold (2), described ingot casting (3) and described heating arrangement are placed in described heat-insulation system.
7. according to claim 6 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that, described heat-insulation system comprises: rustless steel container and high-temperature refractory;
Described cooling system, described mold (2), described ingot casting (3) and described heating arrangement are placed in described rustless steel container, and described high-temperature refractory is placed in described rustless steel container inwall place for insulation.
8., according to claim 7 for measuring the experimental provision of the junker mold coefficient of heat transfer, it is characterized in that: described high-temperature refractory is refractory fiber cotton.
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| CN201210416968.3A CN102928461B (en) | 2012-10-26 | 2012-10-26 | For measuring the experimental provision of the junker mold coefficient of heat transfer |
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| CN201210416968.3A CN102928461B (en) | 2012-10-26 | 2012-10-26 | For measuring the experimental provision of the junker mold coefficient of heat transfer |
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| CN102928461B true CN102928461B (en) | 2015-11-11 |
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| CN103616404B (en) * | 2013-11-05 | 2015-08-05 | 西安交通大学 | With the fluidic heat exchange of fluids experimental provision of ball-and-socket and/or the convex flowing control structure of ball |
| CN103849758B (en) * | 2014-03-07 | 2016-03-16 | 东莞市禾盛金属科技有限公司 | Quench cooled supervisory system |
| CN105445319B (en) * | 2014-08-29 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of method and device for determining the surface of steel plate water cooling coefficient of heat transfer |
| CN109001254B (en) * | 2018-08-27 | 2020-09-29 | 中南大学 | Device and method for rapidly testing high-temperature heat conductivity coefficient of metallurgical slag |
| CN110967367A (en) * | 2018-09-29 | 2020-04-07 | 南京诺瑞特铸造有限公司 | Experimental device for be used for surveing water-cooling casting mould heat transfer coefficient |
| CN110514692A (en) * | 2019-08-07 | 2019-11-29 | 中国北方发动机研究所(天津) | A kind of provision for thermal insulation heat-transfer effect test and experiment device |
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