空气冷却

The frequency about 16KHZ the permeabIe feverΦ60 about work Piece,mayweld many kinds of hard aIloy tools 1、the standard Piece.the faslener heat upset 2、drill rod steel,drill rod utensil drawing-back,forge,squeeze the warmup waiting 3、Welding of diamond saw.drilling tool 4、Bit,coal aiguille,rivetting the pole aiguille,welding of the pick 5、Lathetool,planer tool,milling cutter and welding of different woodwork cutters

为了解决上述弊端，采用新型空气冷却器一次换热，传热管形成高热流密度，由快速的空气流把热量散发到大气中去。纯净水在新型的空气冷却器和高频加热设备内闭路循环，被冷却系统长期不结水垢，不被异物堵塞，冬季在冷却水中加入防冻剂杜绝了水路被冻坏的故障。

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。

Air resistance of counterflow closed circuit cooling tower is detailed tested, air flow regularity inside of the new tower is discussed and air flow characteristics through cooling bundle of tubes is analyzed.

在该实验台上详细测试了在封闭式冷却塔内空气与水逆向流动条件下，空气流经冷却盘管的阻力，探讨了封闭式冷却塔内空气的流动规律，分析了空气流过正三角排列管束的特性。

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。

Dimensionless equation of air flow resistance is functional relation of Euler number, Reynolds number and Prandtl number, is set up after experimental data is analyzed Air resistance through cooling coil is conveniently computed , fan of the new cooling tower is correctly selected and suitable distance of among cooling tubes is designed by the dimensionless equation.

建立了空气流动阻力的准则方程，即欧拉数Eu与雷诺数Re、普朗特数Pr之间的函数关系。利用这个准则方程可以方便地计算空气流经冷却盘管的阻力，合理地选配封闭式冷却塔所用风机和设计冷却盘管的管间距。

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苏州恒大涂装设备有限公司是专业代理经销日本岩田IWATA自动空气喷枪及手动空气喷枪； DEVILBISS中压自动空气喷枪及手动空气喷枪、日本明治MEIJI喷枪、涂料调压阀；台湾宝丽、齐成、悍虎、涂料压力桶；三丰、五分、国宝气动双隔膜泵浦；GRACO气动双隔膜泵浦、搅拌器；瑞士GEMA粉体静电喷枪；日本ASAHI液体手动/自动静电喷枪/泵浦、气动双隔膜泵浦、涂料稳压阀及静电旋杯喷枪和各种零配件；日本SSD、台湾冠品静电除尘枪、静电测试仪；GRACO高压无气喷涂机；台湾元麒ΩDISC静电旋碟喷涂机；耐高温链条油、耐溶剂涂料管、空气油水分离器、台湾石大吸附式/冷冻式干燥机、气动工具、喷涂、清洗、冷却、润滑用喷嘴。

Exterior refinements include:+ A larger, polished stainless steel wire mesh front grille that enables the required additional airflow for engine heat dissipation + A new, lower front fascia that incorporates a larger lower grille for increased cooling capability; brake ducts for front caliper and rotor cooling and splitter to counteract lift created by larger grille openings + A new lower rear fascia that facilitates smooth airflow under the vehicle for improved cooling + Lower rockers that visually bridge the lowered front and rear fascias + A specific, fluidly sculpted hood designed to provide space for the engine's supercharger + Ten-spoke, flangeless, painted aluminum alloy wheels that assist in brake cooling + A higher, more rearward-positioned rear spoiler that enables balanced aerodynamic downforce with the front splitter + V-series badging on the vehicle's rear decklid and front doors, and "Supercharged" block lettering on the doors

外观的改进包括：+有较大，抛光不锈钢丝网的前格栅，使发动机所需的额外的散热气流+一个新的，较低的前仪表，它把一个较大的下格栅关于提高冷却能力；刹车管为卡钳和转子冷却和分配器足以抵消格栅的开口更大的提升+创建一个新的较低的后部汽车仪表板，便于在改善冷却车辆气流平稳+下摇滚乐的视觉弥补降低的前后面板+一个具体的，流畅，造型盖设计为发动机的增压器+十空间发言，凸缘，画铝合金轮毂的协助刹车冷却+阿更高，更向后定位的后扰流板，使平衡与前分路空气下压力+ V系列徽章的车的后部行李箱的大门，和&增压&块门上刻字

The main reason is that many high-grade office space is equipped with all-air central air conditioning, is to first deal with air, reducing temperature and humidity, the air sent through the pipeline to the room through the return air, pipeline to return to the central processing system, central processing system for cooling air return after降湿part of the new wind coupled with the second round after the blast, and so the cycle, while the central air-conditioning system for energy conservation, often adding a little fresh air, return air devices in the recovery rate of 80%, resulting in cross-infection the opportunity to increase significantly.

主要的原因是，许多高品位的办公空间配备了全空气中央空调，是先处理空气，降低温度和湿度，空气通过管道传送到房间通过回风管道返回中央处理系统，中央处理系统，冷却空气降湿后返回的一部分，新风，加上第二轮爆炸后，所以周期，而中央空调系统节能，往往增加了小新鲜空气，回风装置，回收率为80 ％，导致交叉感染的机会大大增加。

Large air separation plant 40000m3/h, This plant adopts molecular sieve system to adsorb CO2, C2H2, moisture and CnHm in air to pre-purify air, by use of air booster compressor, to pressurize some of purified feed air by two sections, pressurized air to warm up high pressure liquid oxygen in high pressure coil heat exchanger to ambient temperature and delivere out off cold box to coal gasification, some pressurizrd air by first section is drawn from middle part of coil heat exchanger and expanded in medium pressure expander then led into lower column, other part of pressurized air by second section is drawn from cold end of coil heat exchanger and led into lower column after throttling, un-pressurized feed air is cooled by return gas in plate fin heat exchanger and led into lower column.

产品描述：采用常温分子筛空气预净化系统吸附空气中的CO2、C2H2、水份和一些碳氢化合物，使用单独的空气增压压缩机将部分净化后的原料空气分为两段增压，增压后的空气在高压绕管式换热器中将经液氧泵加压的高压液氧汽化并复热至常温送出冷箱直接供煤气化工序使用，第一段增压后的空气，部分从绕管式换热器中部抽出经电机制动的中压透平膨胀机膨胀后送入下塔，另一部分经第二段增压后从绕管换热器的冷端抽出节流后送入下塔，未经增压的原料空气在板翅式换热器中被低压返流气体冷却后进入下塔。

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。

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。