蒸汽热

Introducing a kind of boiler blowpipe about boiler supperheatera ndb oilerr eheaterb etweent heirc onjunction piping to clean all kinds of miscellaneous objects that stay in the system, avoiding them affecting turbine and boiler equipments, insure the steam good quality.

介绍一种锅炉过热器、再热器及其连接管道吹管的方法，清除系统中存留的各种杂物，避免杂物对蒸汽品质和机、炉设备产生影响，从而确保机组安全、经济运行。

The experiment results prove that the boiler coking is largely reduced and the temperature difference of two sides of horizontal gas-pass is very small, when the 330MW boiler operate, the pressure of primary hot air parison is controlled beyond 12.0～12.5KPa, the O2 content of air pheheater is controlled about 3.0%, the door of OFA is opened to 30%, the buffle of the inner secondary air sleeve is adjusted to the minimum, the outer secondary air swirling strength and the baffle of the outer secondary air sleeve is regulated to the maximum and the outlet temperature of pulvervised mill is kept in 70℃.

试验结果表明，330MW运行时，一次热风母管压力控制在12.0～12.5kPa以上、空气预热器实际氧量控制在3.0％左右、燃尽风门开至30％、内二次风量套筒挡板调整在最小、外二次旋流强度和外二次风套筒挡板调整到最大、磨煤机出口温度维持在70℃，此时锅炉结焦大幅度减轻，水平烟道两侧烟温差非常小。优化试验完成后，进行了单烧灵武烟煤对比，结果是：掺烧高灰熔点的银北煤后，炉膛结焦大幅度减轻，锅炉过热器减温水量较小，主蒸汽压力易提高，带负荷能力正常；再热器烟气挡板开度较大、减温水量较小；风机电耗较小。

In chapter two, the recent progress of coal gasification technology and the newest research results in the field of coal pyrolysis with solid heat carrier are reviewed.

在第一章介绍了本文的工作内容，第二章综述了国内外燃气-蒸汽联产技术的发展状况，以及固体热载体煤热解工艺的最新进展。

This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.

本项研究以热力采油的主要机理为基础，充分考虑在粘性力、重力和毛管力作用下油水气三相流动，考虑温度对各种流体和固体介质物性的影响，考虑每一组分中汽液两相的相平衡，考虑热在地层中的传导、对流和辐射以及上下盖层的热损失，利用热力学第一定律、质量守恒定律和流体迁移定律，建立了正确可靠的注蒸汽数学模型；在对数学模型进行空间离散时，利用控制有限体积积分法，对以往的九点差分近似作了合理的改进，使其具有较高的差分近似精度：结果表明，该公式的近似精度要比以往文献中所给的九点差分近似精度高，可以认为，在油藏数值模拟中，如果遇到非均质情况，使用这种九点差分近似更合理。

It is suggested to reconstruct chain grate boiler in wood based panel factory with compound burning technology,a technology combined layer burning of coal and suspension burning of wood dust in one stove chamber.

1前言链条炉是一种结构比较完善的机械化燃烧设备，这种燃烧设备有较好的燃烧稳定性，对负荷变化适应性强，符合人造板厂生产过程中热负荷多变的用热特点，因此，在我国人造板厂使用的蒸汽锅炉和导热油锅炉中，广泛采用链条炉作为燃烧设备。

Stuffy nose or sneezing, runny nose, you can use hot towels Fomentation look nose, or hot steam fumigation nose, so that the symptoms have been alleviated.

鼻塞或打喷嚏、流鼻涕时，可以用热毛巾热敷一下鼻部，或用热蒸汽熏蒸鼻部，使症状得到缓解。

You will be able to work with saturated steam when printing reactive dyes and acids, superheated steam when printing with disperse and to fix by hot air the pigments.

活性染料和酸性染料印花时可以采用饱和蒸汽汽蒸固色，分散染料印花可以采用过热蒸汽固色，涂料印花时进行热风固色。

According to the running state of the Boiler in Datang Huxian County Second Power Plant, the steam atomizing oil gun was reconstructed to the air atomizing oil gun. The compressed air was used to the atomizing medium of the oil gun that a great quantity of the steam was reduced when the boiler had been no running and steady boiling. Definitely the steam may be supplied by the steam turbine the fourth pulling out section,oil gun's use was not limited by the pressure of the atomizing steam at lower load. It has been realized the energy conservation efficiency function.

大唐户县第二发电厂根据锅炉运行的实际情况，通过将蒸汽雾化大油枪改造为空气雾化油枪，采用压缩空气作为油枪雾化的介质，大大降低燃煤锅炉起停及稳燃时蒸汽耗量，辅汽联箱不需要冷段再热部分供汽，完全可以由汽轮机四段抽汽供汽，油枪的使用不受低负荷时雾化汽源压力低的限制，达到了节能增效的作用。

Steam condensate was produced by steam exchanging heat during oil refining.

蒸汽凝结水是在石油炼制生产过程中蒸汽经换热后凝结产生。

The concise control scheme and particular control algorithms employed are illustrated in detail, which mainly include pressure piecewise control for heat pump group and the low-point selection control for heat pump actuator, the pressure piecewise control for low-temperature dryer of Wet paper sheet, the pressure split control for the secondary steam recovery of oven and the cascade control for paper sheet moisture.

简要介绍纸幅干燥原理和热泵节能机理，设计一套基于S7-300 PLC的五叠网涂布白板纸机蒸汽冷凝水热力控制系统，阐述具体的控制方案和采用的控制算法，其中主要包括热泵组的压力分段控制和热泵开度的低端选择控制、湿端低温段烘缸组压力回路分段控制、热烘箱二次蒸汽回收压力回路的分程控制和成纸水分的串级控制。

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。