查询词典 heat exchanger

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。

It builds the whole liquid-cooling system mainly by the design of the liquid-cooling decalescence boxes(improve its bottom material from aluminium alloy to pure copper, enlarge its volume, better cooling effects, and strengthen pressurization), by the operations of cooling effect about the heat exchanger worked by its temperature adjustability of the ribs(diffuse the heat fleetly owing to the excellent diathermancy of the material of the ribs ,make effective diathermancy owing to ribs outside areas, and drive the heat of the ribs away by the fans), and by the water pump made up of the piezoelectric ceramic with the excellent performance-no electromagnetism interference, little cubage, little noise, light exterior, light weight, low consume, high flux, replacing the mechanical pump.

在液冷散热器的研究中，主要通过对液冷吸热盒设计不断地改进(使吸热盒底部的材料从铝合金变为纯铜材料，其整个体积有所变大，但其散热效果明显变好，且密封性得到了极大地加强)，综合地运用换热器中肋片的壁面温度调节作用产生的散热效果(肋片材料优良的导热性，快速地扩散了热量：肋片较大的与流体接触的表面积，使传热更加充分，对流热阻大大减小；再利用风扇对肋片上的热量进行吹散)，利用性能优良的压电陶瓷泵(该泵机电性能稳定，具有无电磁干扰、体积小、噪音小、外型轻薄、重量轻、低能耗。、高扬程等优点。)代替机械泵作为驱动源，搭建了整个散热系统。

The main reasons for the higher efficiency are the elimination of the water pump, the elimination of the water heat exchanger (which is a source of heat losses), and the phase change of the refrigerant in the ground itself, allowing a higher temperature gradient between loop and ground resulting in a higher rate of heat transfer.

为高效率的主要原因是水的泵，水的热交换（这是一个消除热损失的来源），以及本身在地面制冷剂相变，从而使一回路和地面之间的热传递率较高导致较高的温度梯度。

Sensible heat efficiency and latent heat efficiency are two critical evaluating indicators of total heat exchanger.

全热交换器的重要评价指标是显热效率和潜热效率。

Based on the study of the flow maldistribution in heat exchanger,the effect of staggered plate header configuration on outlet flow and heat transfer in plate-fin heat exchangers was experimentally studied.

在对板翅式换热器内部物流分配研究的基础上，研究了错排孔板型结构封头对板翅式换热器出口流动与换热的影响。

The results indicate that the uniformity of temperature difference in panel heat-exchanger can be the directive effect in the design of heat exchange system with small temperature difference, and the heat pump technology is one of the effective measures in the rundle using o...

结果表明换热器传热温差的均匀性原则对小温差换热系统设计有指导作用；热泵技术是地热能梯级利用的有效措施之一。

Although the TSOT heat exchanger has been successfully applied in the realm of heat-recovery in industrial boilers and furnaces, the mechanisms of TSOT and its effects of some elements on its heat transfer features are unknown. Reports about the TSOT research have seldom seen. So it is not only urgent but also important to do some investigations on TOST to enrich the heat pipe theory and guide engineering design.

由侧端切向开漩流孔的半开式热虹吸管制成的热管换热器已在工业锅炉、窑炉中初步得到成功应用，但对其内部的机理和有关影响因素尚不十分清楚，在国内、国外文献资料中对该种热管的相关研究资料的报道也较少，因此，迫切需要进行相应的研究，以丰富热管理论并指导工程设计。

Four processes in gas-burning vacuum hot water boiler are researched in the paper:gas combustion process, heat transfer from gas to water, water boiling heat transfer, heat transfer of the process of congealing from steam to water by heat exchanger.

研究的燃气真空热水锅炉包括四个同时进行的过程燃料的燃烧过程，烟气向水的传热过程，水的沸腾传热过程，蒸汽与水通过换热器的凝结传热过程，在这个循环过程中，通过对其传热机理的分析研究，进行了真空锅炉内部结构的热工计算。

Heat supplying part: heat conduction oil oven, pipe, heat exchanger, blower fan and heat preservation material

二 供热部分：由导热油炉、管道、换热器、风机及保温材料等组成。

First, developments related to modeling of components of the Ground Source Heat Pump system are presented-vertical ground loop heat exchanger, water source heat pump, standing column well, and several types of supplemental heat rejecters used in hybrid GSHP systems.

首先给出了地源热泵系统各部件建模方面的进展，包括竖直埋管地热换热器、单井循环系统以及在地源热泵混合系统中采用的几种辅助散热装置。

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。