Analysis system for thermal state performance test data of continuous-casting secondary cooling nozzle
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A technology of thermal performance and data, applied in the field of steelmaking and continuous casting, can solve problems such as interference, achieve high integration, ensure accuracy, and good compatibility.
Active Publication Date: 2014-12-24
WISDRI ENG & RES INC LTD
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[0004] The purpose of the embodiment of the present invention is to provide a continuous casting secondary cooling nozzle thermal performance test data analysis system to solve the problem of interference factors brought by manual calculation in the calculation results of the prior art
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Embodiment 1
[0030] Such as figure 2 Shown is a structural diagram of a thermal performance test data analysis system for a continuous casting secondary cooling nozzle provided by an embodiment of the present invention.
[0031] Depend on figure 2 It can be seen that in the thermal performance test data analysis system of the continuous casting secondary cooling nozzle provided by the embodiment of the present invention, the data operation module includes a test result data fitting module.
[0032] The test result data fitting module fits the time-temperature data of the thermal state performance test of the tested sample, and performs noise reduction processing on the thermocouple data obtained from the test, so as to facilitate the convergence of the calculation process of the analysis system.
[0033] In the embodiment of the present invention, the data operation module includes a sample surface temperature calculation module and a heat transfer coefficient calculation module, and th...
Embodiment 2
[0040] Embodiment 2 provided by the present invention is a specific application embodiment of the thermal state performance test data analysis system of the continuous casting secondary cooling nozzle provided by the present invention.
[0041] 1. Test nozzle model A, spray angle 110°, installation height 200mm, installation distance 200mm, test air pressure 0.2MPa, test water pressure 0.4MPa, sample steel type is Q235A, and test initial temperature is 880°C.
[0042] Specific steps are as follows:
[0043] 1. Test data import process:
[0044] Import the test result data into the thermal performance test data analysis system of the continuous casting secondary cooling nozzle.
[0045] 2. Operation condition setting process:
[0046] First, select the test steel type as Q235A in the steel physical parameter database; secondly, set the cooling water temperature to 20°C, and the ambient temperature to 20°C; thirdly, set the space step size to 2mm and the time step size to 0.01...
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Abstract
The invention is suitable for the technical field of steelmaking and continuous casting and provides an analysis system for thermal state performance test data of a continuous-casting secondary cooling nozzle. The analysis system comprises a calculation condition setting module, a data input and output module and a data calculation module, wherein a steel grade physical-parameter database module in the calculation condition setting module is used for storing the physical parameters of various test steel grades, and a cooling medium temperature parameter setting module in the calculation condition setting module is used for setting the parameters of temperature and environment temperature of cooling water for testing; the data input and output module is used for inputting time-temperature data of the thermal state performance test for a tested sample into the data calculation module; the data calculation module utilizes the inverse heat transfer problem to calculate the surface temperature of the tested sample and corresponding heat transfer coefficients, so that interference factors brought by an artificial calculation process are greatly eliminated, and an accurate boundary condition is provided for slab temperature field calculation of related key technologies in the continuous casting process.
Description
technical field [0001] The invention belongs to the technical field of steelmaking and continuous casting, and in particular relates to a thermal performance test data analysis system of a continuous casting secondary cooling nozzle. Background technique [0002] The key technologies of the continuous casting process, such as the off-line simulation technology of the secondary cooling process of continuous casting, the dynamic water distribution technology of the secondary cooling of continuous casting, and the dynamic soft reduction technology of continuous casting, all need to calculate the temperature field of the slab, and the reliability and accuracy of the calculation results It directly depends on the boundary conditions given in the calculation process, and the heat transfer coefficient is a key parameter in the boundary condition setting. Therefore, it is very important to obtain the accurate heat transfer coefficient of the continuous casting secondary cooling nozzl...
Claims
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