冷却的

According to the present situations of the two production lines and the temperature needed by the producing technics of the heat-exchanger , using the numerical simulation with the Airpark software to analyze the reason why the cooling system can not meet the technicals requirement; with the heat transfer theory computation based on the heat transfer principle, the technical parameters of the cooling sect refer to the system technic and configuration are obtained. That are made for reasonable organization of the airflow of the cooling system and the new cooling equipment achieving the technical requirement. At the same time, it will ease the thermal pollution of the circumjacent environment and improve IAQ of the workshop

根据某厂两条换热器生产流水线的现状和冷却降温的工艺要求，用Airpark 软件进行数值模拟，分析了冷却系统无法满足工艺要求的原因；运用传热学原理进行了设备与环境的传热理论分析和计算，分析了冷却系统无法满足工艺要求的原因，得出了改造所需要的技术与结构参数，并对冷却系统进行合理布局与气流组织，使新的冷却系统发挥了应有的作用，满足了生产工艺的要求，同时也减轻了生产环境的热污染，提高了环境的空气品质。

The text also explains the kernel question that we should be cautel at the whole process,points out that we must reduce the life-span wasting of the assembly,controls the speed of cooling strictly,the system and operation should be simple do our best,avoids larger difference of temperature and bulge,lessens the distortion of cylinder.

本文还对快速冷却时应注意的核心问题加以说明，指出在强制冷却过程中必须尽量降低汽轮机部件寿命损耗，应严格控制冷却速度，冷却系统及操作力求简单，防止产生过大的温差、胀差及变形。

Cooling air flow through the low-temperature part then effuse from the high-temperature part. This can enchance the efficiency of radiation and reduce radiators of each locomotive.Furthermore, it syffice for use of diesel engine and reduce needed assistant power to cool fans.

冷却空气从进风面进入前部低温冷却芯子，后再经高温冷却芯子，从而提高了散热器效率，减少了装车散热器单节数，同时满足了柴油机高低温系统的散热要求，又可降低冷却风扇所需的辅助功率。

The freezing on the cooling water column of heating power plant in winter can cause serious damage to the equipment.

热电厂冷却水塔冬季结冰对设备损坏严重，通过分析冷却水塔易结冰的部位和结冰原因，在比较各种冷却水塔冬季防冻方案后，最终采用自流反射双向化冰防冻管并加大进入防冻管的热水量来解决冷却水塔冬季结冰问题。

By dilatometric change and microscopic test, the critical point at Ac1、Ar1、Ac3 and Ar3 of ML40Cr steel was detemined in Gleeble-3800 the thermal-mechanical simulator. The continuous cooling transformation diagram of ML40Cr steel was obtained by measuring the expanding curves of different cooling rates. The mechanical property and transformation of austenite were analyzed. The proper range of control cooling rate about ML40Cr cold heading steel was found. All those provide the reference for productive practice to develop cold heading steel.

在Gleeble-380热模拟试验机上采用热膨胀法－金相法测定了ML40Cr钢的临界点Ac1、Ar1、Ac3、Ar3，同时测定了在不同冷却速度下过冷奥氏体连续冷却时的膨胀曲线，获得了该钢的连续冷却转变曲线；研究了ML40Cr连续转变冷却过程中奥氏体转变过程和转变产物的组织和性能，初步确定了ML40Cr盘条的控制冷却范围，为冷镦钢ML40Cr盘条的开发提供了参考依据。

In addition to the regeneratively cooled designs mentioned above, other combustion chamber designs have been fabricated for rocket engines using dump cooling, film cooling, transpiration cooling, ablative liners and radiation cooling.

此外，向再生水冷式的设计，如上所述，其他燃烧室的设计已被捏造为火箭发动机，使用转储冷却，气膜冷却，发汗冷却，烧蚀班轮和辐射冷却。

The influence of cooling conditions on the quality and metallurgical properties of sinters was studied in lab.The results show,that the heat preservation cooling is the best.

通过实验室体系研究了不同的冷却制度对烧结矿质量以及冶金性能的影响，对比分析结果表明，采用保温冷却综合效果最好，在冷却过程中采用变风量冷却对于提高烧结矿成品率有利。

The manufacture of copper core of automobile radiator includes coating tinned or bared copper cooling pipe; roasting assembled main core inside braze welding furnace at 230-280 deg.c for 30-60 sec; welding main sheet to cooling pipe via conventional process; and welding the copper lid opening for the water chamber with brazing agent without solder and welding filament.

一种铜质汽车散热器主芯的制造方法，其先将镀锡冷却管或裸铜冷却管外壁分别进行覆膜处理。将组装好的主芯主体置于铜钎焊炉内于230～280℃温度焙烧30～60秒。主片与冷却管间采用常规的方法焊合。还可以将组装好的主芯主体每排冷却管上摆放一根外表面涂有无钎料钎剂膜的锡焊丝，它们贴在冷却管与主片结合处。

Applications concerned herein were: the broken through tech in control rolling and control cooling of bar and wire steel, UFC of bearing steel after rolling to control carbide distribution, UFC of hot rolling sheet steel for complex phase control, reforming of hot rolling sheet steel mill performing UFC and the establishment of new cooling system of heavy and medium plate mill strengthened with UFC.

这些应用包括棒线材控轧控冷技术突破和应用、轴承钢的轧后超快速冷却控制碳化物分布、利用超快速冷却技术进行热轧带钢组织复相化控制，以及热轧带钢轧机实施超快速冷却装置的改造和中厚板轧机实施超快速压力喷射式冷却+ACC的新式冷却系统的建立。

The conversion of available energy in different evaporative cooling processes is analyzed and evaluated in Chapter 3. As results, exergy of moist air is suggested to be evaporative cooling potential and regenerative evaporative cooling will be most potential in effectively utilizing the available energy.

第三章对蒸发冷却过程能量及有用能转换关系进行了研究，阐明了湿空气〓作为蒸发冷却潜力的合理性，对蒸发冷却方案的〓分析评价指出了各种蒸发冷却方式的适用性与合理的使用原则以及提高蒸发冷却过程有用能利用率的发展方向。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。