查询词典 pressure boiler

You must prevent circumfluenting to the boiler if the boiler closes chake valve. Rail pressure valve and buffer pistons in the act of gravity can realize the pressurize immediately to make the steam and condensate water not to circumfluent to the boiler in low pressure.

如果锅炉没有关闭截止止回阀，则必须防止回流到锅炉上，阀瓣压铁和缓冲活塞，在重力的作用下，能够迅速实现密封，使得蒸汽和冷凝水即使在低压下也不会回流到锅炉里。

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。

Through the flue gas and air characteristic analysis in supercharged boiler,the results showed that the value of parameters would increase with the increase of fuel consumption.And volume heat load of the furnace, fuel consumption, heat change between flue gas and convective heating surface and evaporation value would increase with the increase of compression ratio.The heat calculation would be different because of dissimilar thermal calculation in the turbo-compressor when the boiler load was changed.As the boiler load increased,heat loss in the turbo-compressor would increase and the efficiency of the boiler would decrease.The results of the boiler start-up simulation showed that the time of start-up would decrease with the increase of flue consumption ,but instantaneous pressure amplitude would increase.Steam water"s dymamic diversification would be more complex than flue gas"s,and dynamic characters of their parameters would be changed due to different boiler load and disturbance variable,which was shown by results of the simulation when boiler load was changed.

通过分析增压锅炉内的空气、烟气参数特性，发现随着锅炉负荷的增加，空气和烟气的各项参数值都相应的增加；炉膛容积热负荷、锅炉的燃料负荷随着增压比的提高成比例增加；随着增压比的增大，烟气与对流受热面的换热增加，蒸发量随之增加；由于涡轮增压机组在不同负荷下的热力计算不同而造成增压锅炉在不同负荷下的热平衡计算的不同；锅炉增压机组的总的热损失随着锅炉负荷的增加而增加，而增压锅炉的热效率随着锅炉负荷的增加而减少；锅炉启动模拟仿真结果中发现，锅炉启动时燃料量增加，锅炉的启动时间就会减少，但是瞬时升压速度会增加；而动态负荷变化模拟仿真结果中发现，锅炉汽水侧的变化相比烟气侧更为复杂，且在不同负荷和不同扰动量下，烟气侧和汽水侧的重要参数动态特性是不同的。

LU Hong-High Pressure Boiler Tube Information: Japan Steel prices once again took the lead and the international mining companies iron ore price on the 2010 fiscal year of negotiations to reach an agreement.

鲁宏高压锅炉管资讯：日本钢企又一次率先和国际矿商就2010财年铁矿石价格的谈判达成协议。

Further more the efficiency of low pressure boiler is very low and the cost is very high.

因此可以通过减少单位火用成本作为过程火用优化的判断标准。

But there are high pressure boiler tubes expert analysis, auto industry growth trends of this insufficient capacity, will not last long.

但是也有高压锅炉管专家分析，汽车业的这种增长趋势后劲不足，不会持续太久。

Supercritical pressure boiler ; evaporator spiral wall ; transition section

超临界锅炉；螺旋水冷壁；过渡段

Beijing Crown Victoria Industrial Boiler Factory (formerly the Beijing Tongzhou Huaguan boiler plant), was built in January 1985, the site is located in the national pilot of small cities and towns -tTown Tongzhou District, Beijing, unique geographical location, convenient traffic, is the State Administration of Quality Supervision, Inspection and Quarantine of boiler and pressure window safety Inspection Board approved the production of C-class boiler, the State Environmental Protection Agency approved the production of ESP certification of professional manufacturers, and in 2001 through the ISO9002 international quality system certification.

北京市冠利工业锅炉厂（原北京市通州华冠锅炉厂），建于1985年1月，厂址座落于国家试点小城镇——北京市通州区漷县镇，地理位置得天独厚，交通便捷，是国家质量监督检验检疫总局锅炉压力窗口安全监检局批准生产C级锅炉、国家环境保护局批准认证生产除尘器的专业厂家，并于2001年通过ISO9002国际质量体系认证。

The quality meet or exceed traditional seamless steel tube products for heat exchange, low-, medium-pressure boiler, municipal pipelines (steam heating, fuel vapor transmission, etc.) as well as the chemical industry, power plants, chemical fertilizer, oil field and other fields.

质量完全达到或超过传统无缝钢管，产品适用于换热气、低、中压锅炉、市政输送管道以及化工、电厂、化肥、油田等领域。

April 1 from the traditional annual contract expiration date draws near, the increasingly heated in the iron ore price negotiations, the international iron ore prices and sea freight is expected to become stable against the backdrop of high-pressure boiler tubes in the industry, analysts expect March spot iron ore imports will reach 60 million tons, a record high.

距离4月1日传统的年度合同到期日越来越近，在铁矿石价格谈判日益白热化、国际铁矿石价格上涨和海运费有望趋于平稳的背景下，高压锅炉管业内分析人士预计，3月份铁矿石现货进口将达到6000万吨，创下新高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。