查询词典 steam heating

On the basic of heat equation method, a general math modeling of heater is developed., as well as a lots of real-time math modeling of heating system, such as math modeling of heat economic analysis、relative internal efficiency of HP cylinder、relative internal efficiency of MP cylinder and LP cylinder、utilization of blow down water tank、steam make-up of deaerate and steam leakage of seal gland.

热力系统在线性能计算和热经济性分析在降低机组煤耗，提高火电厂运行效益方面具有重要的作用。

Heating steam heat, electricity, steam, far-infrared dual-use for users to choose.

一：加热热源蒸汽，电，远红外电蒸汽两用，供用户选择。

This paper deals with how to use optimum method to make economical comparisons of the following heating systems: the hot water boiler, heat exchanger system, steam jet system and shower calorifier system, which are widely used in industrial boiler house.On condition that the nature of the untreated waters, rate of condensation recovery, fuel costs, heating days, and temperature drop of flow and return water are different, a lot of analysis and comparisons have been made in this paper and optimal designs for...

本文论述了对工业企业锅炉房内几种常用热水制备系统(热水锅炉、换热器系统、蒸汽喷射系统和喷淋加热系统)如何应用最优化方法进行经济比较的问题；并且对其在不同给水水质、燃料价格、采暖天数、凝结水回收率以及不同的送、回水温差等条件下，作了大量分析和比较，从而为计算者推荐出不同条件下的最优方案。

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。

Changed the well chamber heating intermedial from the steam to the power plant boiler room's low temperature hot water, and realized the well chamber's steam changes to the water dynamic frequencyconversion constant temperature automatic control.

将井筒供暖热媒由蒸汽改为电厂锅炉房的低温热水，并实现了井筒汽改水动态变频恒温自动控制。

The steam and nitrogen push uses steam as the heat source ,extra heavy oil or bitumen has been mobilized by conductive heating and rely on the action of gravity of condensed liquid to recovery heavy oil. Because nitrogen is noncondensible gas and its density is lower, nitrogen rise and accumulates in the top of the reservoir.

蒸汽―氮气辅助重力泄油的开采机理是以蒸汽作为热源加热油层，使高粘度的原油、沥青获得较好的流动性，利用气体和液体由于密度不同而产生的垂向分异作用，靠油的重力开采。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

资料为硕士论文，包括完整计算过程，及相关设计图纸，推荐下载！摘要在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

The main products has: 200A-3 Oil Press, 202 type, 24 type, 240 type, 204-type pre-pressing machine, 1.5m 5 - 3.0m 5 steaming pan, various models of three-roll on-roll solution Pressure pressure embryo machine, Extrusion machine, drying machine, vibration fluidized bed dryer, frame-style crude oil filter, oil filter leaves and winter of filtering machines, centrifuges, sweetening pot, detreated pot, refining cans, from soap machine, than with mixers, heating cans, dehydrated machine, 28-36 decorticating machine, round screen, vibrating screen, flat screen, crusher, to stone machine, steam offline, deceleration machine, tube condenser, condensing plate , and plate heat exchangers, spiral plate heat exchanger, various scraper, cutter Liuzhou, hoist, 15-300 tons leaching equipment, 20-100 tons of salad oil equipment, one tons -20 tons of steam boilers, large 100000 -200 kcal million cards conducting oil furnace.

主要销售产品有： 200A-3 榨油机、 202 型、 24 型、 240 型、 204 型预榨机、 1.5m×5--3.0m×5 蒸炒锅、各种型号三辊、对辊液压压胚机、膨化机，烘干机、振动硫化床干燥机、板框式毛油过滤机、叶片滤油机，冬化过滤机，离心机、脱臭锅、脱色锅、精炼罐、脱皂机、比配混合机、加热罐、脱水机、 28-36 剥壳机、圆筛、振动筛、平面筛、破碎机、去石机、蒸脱机、减速机、列管冷凝器、板式冷凝器、板式换热器、螺旋板换热器、各种刮板，绞龙、提升机、 15-300 吨浸出设备， 20-100 吨色拉油设备， 1 吨-20 吨蒸汽锅炉， 10 万大卡-200 万大卡导热油炉。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。