查询词典 stove heating

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

With the development of modern shipbuilding technique and the transformation of shipbuilding mode, the manual and experiential technique patterns of line-heating can not meet the requirement of modern shipbuilding in processing speed and product quality. Therefore, line-heating technique has to be innovated exigently.

随着现代造船技术的发展和造船模式的转变，手工经验型的水火弯板工艺模式无论在速度上还是在质量上都已远远满足不了现代造船生产的需要，因此，水火弯板工艺的革新已是船舶制造业迫在眉睫的大事。

They owed current most advanced N-meter material and excessive items galvanothermy theca patent technologies. This technology can introduct heating forcefully, high heating-utilized, it can save electricity for 30%, its life is 10 times of galvanothermy thread. It went by the name of permanent galvanothermy system.

本集团拥有当今世界最先进的纳米材料及多项电热膜专利技术，该技术具有强烈的单向导热性：热利用率极高，省电30%，比电热丝寿命长10倍，在国际上被称为永久性电热系统。

Through the research on the geothermal heating system and consideration of the major development trend of domestic and foreign geothermic floors, I decide to design the production line for the special geothermal heating strengthened floor with 8mm-thickness.

通过对地热采暖系统的深入研究及国内外地热地板的主要发展趋势，确定了厚度为8mm专用地热强化地板的生产线的设计。

Solar henter; floor heating; coefficient of heating performance; energy efficiency

太阳能集热器；地板供暖；供暖性能系数；可用能效率

Aimed at the slowness of Measurable Heating progress, author point out that crux of the matter is irrelativeness of technology and economy of Measurable Heating.

针对计量供热进展缓慢的情况，本文指出计量供热技术与经济的脱节是主要问题之一。

All parts that will contact ethanol in the divece such as condensor,buffer tank,coolingsnake pipe ar e made of stainless stwwl in order to guarantee that the finished product,ethanol ,is not polluted,Nodel Wstill may use disassembled U type heating pipe.When maint enance,it can be removed out of the still,So it is very convenient to clean the o uter wall of heating pipe and the inner wall of still.

本装置中凡接触酒精的设备部分，如冷凝器，稳压罐，冷却蛇管等均采用不锈钢，以确保成品酒精不被污染。W型之蒸馏釜采用可拆式U型加热管，在检修时可将U型加热管移出釜外，便于对加热管外壁及蒸馏釜内壁进行清洗。

According to the invention, to achieve this, at least several evaporator tubes (14) are partially filled to a predeterminable desired level with unevaporated flow medium, prior to the impingement of the heating gas channel (6) by a heating gas.

为此，在本发明的方法中，在向燃气通道(6)供给燃气之前将至少多根汽化管(14)局部用未汽化的流体介质充填到预先给定的额定充填状态。

The method comprises heating up the lactic acid solution to gasify at 150-200 degree C, mixing the obtained mixed vapour of lactic acid and water with the carrier gas, entering into gas-solid catalytic reactor to get the reaction product gas by the action of a modified Y zeolite molecular sieve catalytic agent and dewatering after heating up the mixed gas to 200-450 degree C, obtaining the propenoic acid solution through gas-liquid dissociation after cooling the reaction product gas, obtaining coarse propenoic acid products form the propenoic acid solution by gas stripping, azeotropic distillation, extraction and rectification in turns.

其特征在于将乳酸水溶液加热至150～200℃气化得到的乳酸-水混合蒸气与载气混合，将混合后的气体继续加热到200～450℃后进入气-固相催化反应器中经改性Y沸石分子筛催化剂作用脱水得反应产物气体，反应产物气体冷却后经气液分离得到丙烯酸溶液，丙烯酸溶液再依次经过气提、共沸蒸馏或萃取、精馏得到粗丙烯酸产品。

La consideration of the heat market in northern cities, the economics of the pool梩ype low temperature heating reactor and the investment of urban heating system, the scale of protype reactor is chosen 200 MW, which will be able to meet the requirement of cities with more than 500 thousands population, and about 2/3 urban heat market can be met.

考虑到国内北京城市集中供热的需求情况及池式低温供热堆的技术经济特性，预计选用200MW作为单堆容量较为合适。它可以满足50万人口以上大城市供热的需要，约占城市总人口数量的2/3以上的需要。在某些地区，选建100MW池式供热难在经济上也是有利的。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。