查询词典 Heat

And the pressure drop of liquid-layer is mainly influenced by weir height. With the increasing of weir height, the pressure drop increases. And it is independent of bare tower velocity and plate dimension. The correlation before was corrected as follows:ΔpL＝3911Z This paper analyzed the heat transfer coefficient between the outer wall of heat tubes and cooling water. And it was considered that plate geometries、weir height、bare tower velocity and heat flux density would affect the heat transfer coefficient.

而液层阻力主要受堰高的影响，堰高越高，液层阻力越大，与空塔速度和孔板的几何尺寸无关，对以往的公式进行修正后得到实验关联式如下：ΔpL＝3911Z 本文对加热管外壁与冷却水之间的换热系数进行了分析，认为孔板的几何尺寸、堰高、空塔速度以及热流密度均会影响换热系数。

The invention is suitable for pipe shell type heat exchanger, better heat transfer effect can be achieved by adopting the arrangement method for heat transfer pipe according to the invention, and heat exchanger having different temperature difference of intake water and outtake water can be conveniently combined.

本发明适用于管壳式换热器，在换热装置中采用本发明的传热管的排列方法，可以达到较好的传热效果，而且可以方便地组合成不同进、出水温差的换热器。

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。

Which use laser welding with a powder, a kind of heat treatment, and do not use another kind of heat treatment; plasma surfacing using two different surfacing powder, respectively, and Ni-Fe-based, heat after heat treatment.

其中激光采用同一种堆焊粉末，一种进行热处理，另一种不采用热处理；等离子堆焊采用两种不同的堆焊粉末，分别为Ni基和Fe基，都进行热后热处理。

The association effect of inert gas and gas phase acetic acid-water in condensing process was considered, the heat and mass transfer behavior of the heat exchangers at every step and the influence of heat and mass transfer on the design of heat exchangers were analyzed for the condensing process of acetic acid, water, and mixed nitrogen vapor in the condenser in the PTA oxidation process.

针对PTA氧化反应中冷凝器内的醋酸、水和氮气混合蒸气冷凝过程，考虑冷凝过程中惰性气体和气相醋酸-水缔合效应，分析了各级换热器内传热传质行为以及传递对换热器设计的影响。

The SpitFire 3.2 multi-stage heat exchange system creates high solution temperatures by using engine block heat, vacuum blower heat, and engine exhaust heat.

Spit Fire3.2独特的多级热交换系统，充分利用了发动机散热、真空送风机散热和发动机尾气热量，加热清洗液，使清洗在高温、高效率下进行。

There are many differences between the heat transfer with two-fluid and the heat transfer with three-fluid separate type heat transfer units of heat pipe.

中文摘要：采用分离型热管换热组件实现三种流体之间的热交换与两种流体之间的热交换有许多差异。

The utility model-A Fluid Container for Heating Food Instantly, combines thermit with pop-top, and is suited to make convenient food which has a large market such as heat soup for only once, heat drink, and heat tea. The heat soup may be of Chinese Traditional medicine. Because of the thermit, the patent product can fulfil the requirements for speediness, quiet, safety, no poison and no pollution, wholesome food, environmental protection and rapid tempo of life.

本实用新型将铝热剂与易拉罐等容器设计为一体化的即时热商品食用液体容器，称之为&铝热型即时热&，用于生产一次性热汤、饮、茶等大市场容量方便食品，如配套方便面类食品的热汤、适合热喝的茶饮等食品，甚至是中药汤饮。

On the basis of structural features and heat transfer characteristics of a spiral-grooved tube heat exchanger,a three-dimensional geometric model was established for the flow and heat transfer in a heat exchanger with water serving as its working medium.

根据螺旋槽管换热器结构特点及传热特性，建立了以水为工质的换热器流动与传热的三维几何模型。运用有限元分析软件ANSYS模拟出换热器在换热过程中速度场与温度场的状况，分别得到了螺旋槽管内壁与外壁的对流换热系数。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容： 1、分析了锅炉受热面污染形成的机理，从灰污的沉积率和剥蚀率角度出发，推导了受热面灰污增长的基本模型，分析了灰污热阻随积灰时间和烟气流速变化的规律，并通过大量现场试验，得到了沉积常数与时间常数的取值范围； 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性，分别建立了基于热平衡和折算压差的污染在线监测模型，经实践验证，其监测结果能够满足现场工程应用的精度要求； 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处，指出了机理模型因对炉内辐射换热量计算不准确，导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。