查询词典 flue heating surface

The well type gas nitrogenation oven uses the multi-layered multistage multi-link multi-spot assignment type ammonia input mode, enables the active nitrogen member fast evenly with the work piece surface union, forms the even fast nitrided level, the coordinate high speed spiral air flue, the effective addressing work piece blind hole and the deep hole nitriding craft, nitrides strongly by the microcomputer programmed control infiltrates, the diffusion technology heating curve.

井式气体氮化炉采用多层多段多环多点分配式氨气输入方式，使活性氮气分子能快速均匀地与工件表面结合，形成均匀快速氮化层，配合高速螺旋风道，有效解决工件盲孔和深孔地氮化工艺，由微电脑程序控制氮化强渗、扩散工艺加热曲线。

The mathematical correlation model of heating surface area and flue outlet temperature has been established,and the best flue temperature at furnace outlet upon condition that the heating surface area is minimized has been obtained by optimization.

建立锅炉受热面积与炉膛出口温度的数学关联模型，并通过解的最优化处理得到锅炉最少受热面积下的最佳炉膛出口温度。

For coal-fired boilers: coal rate of 8 ~ 20%; clear coking coal-fired system 50 ~ 95%; to reduce sulfur emissions 20 ~ 30%; to reduce harmful gas emissions 50 to 95 percent; firepower improve about 20%; lower value of about 14% of spontaneous combustion, and life brought about by the extension of the boiler to reduce the repair cycle of the furnace, flue, heating surface, such as equipment maintenance Qing Jiao role in enhancing the stability of combustion, reducing harmful gas emissions and other benefits.

对于燃煤锅炉：节煤率为8～20％；清除燃煤系统结焦50～95％；降低硫排放20～30％；降低有害气体排放50～95％；火力提高20％左右；降低自燃值14％左右，并带来延长锅炉使用寿命，减少维修周期，对炉膛、烟道、受热面等设备具有清焦保养作用，提高燃烧的稳定性，减少有害气体的排放等效益。

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。

By using the said model, the mass flow of flue gas and steam can be calculated on the basis of temperature and pressure concerning the working medium at inlet and outlet of the boiler's heating surface, and the variated amount of the heating surface's thermal resistance can be calculated without using structural parameters of the heating surface.

由于简单换热器模型能够根据锅炉受热面进、出口处工质的温度和压力，计算烟气和汽的质量流量；可以不使用受热面的结构参数，计算受热面导热热阻的变化量。所以，采用该模型开发电站锅炉吹灰优化控制系统，能够解决传统方式存在的流量计算精度低、污垢热阻计算不准确等问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐