冷却工

This character will be useful for cooling requirement of HTSC. Based on the experiment, a novel configuration of the pulse tube refrigerator with a build in frozen cryogen accumulator is proposed as an example of possible applications.

由于氦氮混合工质中固氮组分的出现，使得制冷机在关机后依旧可提供一段时间的稳定温度平台，这一特性将在诸如高温超导器件的冷却等方面具有潜在的应用价值。

Effect of austenitizing temperature and air cooling rate on microstructure and properties of the CFB/M steel;2. Discussion on the feasibility and economy of 1000MW ultra-supercritical direct air cooling unit;3. Metal transformation temperature under air cooling condition was actually measured.

实测了空冷条件下金属的温度，分析了相变潜热释放引起的温降速度变化规律，并通过冷却速度曲线畸变特征点对实际工况下的金属相变开始温度和结束温度以及相变持续时间进行了判定。

It can make large numbers of gas attempered to temperature required rapidly and ensure the cooling water to vapor and overheat completely avoiding the depressurizer of minute orifices' blocking. The attemperator combined with the depressurizer also can meet operation requirement under variant loads.

提出的高速文丘里雾化冷却器与小孔型节流降压消音器相结合的减温减压装置在中试电站的成功运行表明，采用高速文丘里雾化冷却方式能够充分利用高温高压烟气的能量雾化冷却水，既能使大气量的烟气快速降温，又能确保烟气的干度，安全地实现不同工况下含尘烟气的减温减压排放。

Based on the experiments of performance and waste heat recovery of engine, a numerical model of engine operation is built, and the formation mechanism and effectible factors of engine waste heat are analyzed.

在实验基础上，建立发动机工作过程的数学模型，分析出发动机在不同运行工况下的轴功、冷却余热、尾气余热生成规律和影响因素。

Japan-Tefeno-Shikano methodis considered as an effective method of improving the qualities of heavy forgings. But the traditional JTS processing is complex, and it causes material damage of forging surface. So a new method is proposed, which requires only one-dimensional temperature gradient and the flat anvils to avoid the disadvantages mentioned above.

在大锻件的锻造过程中，为了锻合缺陷，提高锻件内部质量，采用中心压实法可以起到较好的效果，但是由于传统中心压实法锻造的操作复杂，工况较差，而且锻件表面容易产生压伤和折叠等问题，所以提出一种新的中心压实法―一维温差中心压实法，即只对锻件上下表面强制冷却，建立一维的不均匀温度场，采用平砧进行锻造，从而避免上述问题。

Rated at extraction conditions, one pump is running, because the cycle of water to reduce the system's water resistance decrease the flow of water pumps 12274T / H, head will drop to 15.0-16.0 m, in the extraction steam turbine at the maximum operating conditions, the recycled water to meet the system requirements to run a pump, because of substantial reduction in the volume of water supplied, so that substantially improve pump head, a direct result of the cooling tower water gushing, increase淋水device with a flow rate of the sink, fill up water in the hot淋水exchange reduce the time and reduces the cooling effect of cooling towers.

在额定抽汽工况下，一台水泵运行，由于循环水量减少、系统的水阻下降，水泵的流量12274T/H，扬程将下降至15.0-16.0米，在汽轮机在最大抽汽工况时，为满足循环水系统要求运行一台水泵，由于供水量大幅度减少，使水泵扬程大幅度提高，直接造成冷却塔涌水，加大淋水装置配水槽的流速，水流在淋水填料上热交换的时间减少，降低了冷却塔的冷却效果。

Workers can adjust single-speed of cooling machine to a reasonable working under the conditions of the fire kiln, the thick layers and the secondary air temperature .It creates a favorable operating condition .To strengthen the size of the sealed gear and maintain the cleanliness of lubricants , is necessary.

在本课题中交流电动机改为直流调速电动机，看火工可以根据窑况、料层的厚薄以及二次风的温度进行手动调节单筒冷却机的转速以求获得合理的工况，为看火操作创造了有利条件。

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山东宇鑫机械配件有限公司致力于工业自动化产品的开发、设计、生产和销售我厂主要产品有：各种材质的机床防护罩、工程塑料拖链、新型PVC柔性护罩、风琴式、圆桶式、铠甲式、卷帘式伸缩护罩、铝形防护帘、TL桥式钢铝拖链、桥式全封闭式工程塑料拖链、矩形金属软管护套、DGT型导管护套、螺旋钢带护套、机床导轨刮屑板、T型撞块槽板、可调塑料冷却管、S78系列机床垫铁、排屑器、除屑输送机、输送链、各种工量具我公司的产品品种齐全、价格全国最低、交货及时。

The hot helium temperature follows HTR-10's nuclear power changes slowly, and there is a large coupling between them, so the RPHHT system adopts cascade control, the minor loop is fast, and the major loop is hot helium temperature control loop whose dynamic response is slow; there is also a large coupling between main helium loop and steam-water loop, and both the main steam temperature measure signal and the heating process of the once-through steam generator are delayed, therefore, the MHFMST applies cascade control, the minor is main helium flow control loop whose dynamic response is fast, and the major is the main steam temperature control loop whose dynamic response is slow.

本文运用机理建模法，建立了HTR-10系统动态控制模型，然后进行了动态性能仿真，将堆芯用集中参数表示，冷却剂按一维流动处理；直流蒸汽发生器按二回路工质不同的相分为预热段、蒸发段和过热段，建立了三环节控制模型，得到HTR-10系统控制模型；仿真结果与数值计算结果对比表明，本文所建立的控制模型，能近似地反映HTR-10的动态特性，适合设计控制系统。

In order to investigate the flow characteristics of Isothermal jet into cross-flow for a safety injection inclined tube in the reactor cooling system, the numerical simulations were carried out at various velocity ratio between jet and main flow by using the commercial computational fluid dynamics software CFX.

针对核反应堆冷却剂系统中的主管道安注斜接管等温横向射流问题，应用计算流体力学商用软件CFX进行等温横向射流流动的数值模拟，得出了典型运行工况下的三维流场分布。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。