，中文翻译
Design of Vaporization Cooling Device in Metallurgical Plant
Introduction
The vaporization cooling device is an important device in metallurgical plant, which is used to cool hot metal or heat-treated material by cooling. As a thermal energy transfer equipment, the application of vaporization cooling device has become more and more extensive. The cooling effect is better and the operation is more stable. The application of this device has certain advantages in the metallurgical plant, so the design of vaporization cooling device is very important and cannot be ignored.
Design of Vaporization Cooling Device
1. Selection of cooling media
The cooling medium is an important part of the design of the vaporization cooling device. In addition to considering the cooling effect, safety, resource utilization and cost, the physical properties and thermodynamic properties of the cooling medium should be investigated and compared, so as to select suitable cooling medium in scientific and rational way. Generally, five commonly used media can be adopted, namely liquid nitrogen, liquid hydrogen, water vapor, ammonia and freon.
2. Calculation of cooling media flow rate
When determining the flow rate of the cooling medium, the heat transfer coefficient, geometric size, heat capacity and operating temperature of the equipment should be taken into account. Through the calculation of the theoretical flow rate of the cooling medium, the actual flow rate of the cooling medium in the cooling device can be determined.
3. Selection of heat exchanger
When selecting a heat exchanger, the type and number of pipes, flow direction of medium, arrangement and shape of the heat exchanger, heat transfer area and resistance loss should be taken into account. Furthermore, the pressure, temperature, flow rate and other technical parameters of the cooling medium should be correctly designed to ensure that the heat exchanger has sufficient heat transfer area, so as to meet the process requirements.
Conclusion
In conclusion, in the design of the vaporization cooling equipment, the selection of cooling medium, the calculation of cooling medium flow rate, and the selection of heat exchanger should be taken into account. In addition, the design parameters of pressure, temperature, flow rate and structural parameters of the heat exchanger core should be determined. The design of the vaporization cooling device should meet the requirements of the process, ensure safety, and make rational utilization of resources.
中文翻译
蒸发冷却装置的设计
绪论
蒸发冷却装置是冶金厂中一种重要的装置，它可以通过冷却来冷却热金属或热处理材料。作为一种热能传递设备，蒸发冷却装置的应用范围越来越广泛。冷却效果更好，操作更稳定。这种装置的应用在冶金厂具有一定的优势，因此，蒸发冷却装置的设计非常重要，不容忽视。
蒸发冷却装置的设计
1.冷却介质的选择
冷却介质是蒸发冷却装置设计的重要组成部分。在考虑冷却效果、安全、资源利用及成本的基础上，还需要考察和比较冷却介质的物理性能和热力学性能，以科学合理地选择合适的冷却介质。一般可采用五种常用介质，即液氮、液氢、水蒸汽、氨及氟利昂。
2.冷却介质流量的计算
确定冷却介质的流量时，要考虑传热系数、几何尺寸、热容和设备的运行温度等因素，通过计算冷却介质的理论流量，可以确定冷却装置中冷却介质的实际流量。
3. 热交换器的选择
在选择热交换器时，要考虑管道的类型和数量、介质的流向、热交换器的安排和形状、热传递面积及阻力损失。此外，还应正确设计冷却介质的压力、温度、流量及其它技术参数，以确保热交换器具有充足的热传递面积，以满足过程要求。
结论
总之，在蒸发冷却设备的设计中，要考虑冷却介质的选择、冷却介质流量的计算和热交换器的选择，另外，还应确定热交换器的压力、温度、流量和热交换核的结构参数。蒸发冷却装置的设计应满足过程要求，确保安全，合理利用资源。
