燃烧器

Two-equation turbulence model is used in numerical simulation for the side-air burner, compared with the practical measures and tests, good accordance achives. This method can bring great convenience in analyzing aerodynamical field of boiler. Secondly the method of XRD is used in analyzing the phase transformation in the course of dynamic slagging test, so we can describe the process of slagging comparatively accurately. Last this paper introduces a kind of fuzzy mathematics model which comprises an assemblage combined by seven change factor.

本文首先采用k—ε双方程模型对水煤浆侧边风燃烧器进行了数值模拟，并与实际锅炉燃烧器冷态调试试验结果对比，结果吻合较好，这为我们分析炉内空气动力场特性提供了参考；其次对锅炉结渣动态特性试验，采用XRD的分析方法，较为准确的描述了实际锅炉结渣的过程；最后为了准确的判断出水煤浆的结渣倾向，本文对锅炉结渣的七个影响因素提出了模糊综合判断模型，正确的反映出了该水煤浆的结渣倾向。

The company is professional burner sales, distribution of all kinds of import and domestic burner and accessories.

本公司是专业的燃烧器销售公司，经销各种进口和国产的燃烧器及配件。

Preferred to be a Registered or Senior engineer in mechanical engineering Experience 2-3 Years in boiler combustion Engineering in one of the major Boiler Works or Combustion Engineering Company/Authorization of China with experience of leading engineer position on designing 300 MW and above boiler burner system General requirements Willingness to take responsibility Motivation to work.

优先考虑拥有该该领域注册工程师或高级工程师职称者 3.2至3年负责锅炉燃烧器工程设计，研究，并任职于国内主要锅炉制造厂或煤燃烧工程公司/研究机构，有主持研究，设计300MW以上燃煤锅炉燃烧器系统的工作经验个人能力要求 1。

Preferred to be a Registered or Senior engineer in mechanical engineeringExperience3-5 Years in boiler combustion Engineering in one of the major Boiler Works or Combustion Engineering Company/Authorization of China with experience of leading engineer position on designing 300 MW and above boiler burner systemGeneral requirementsWillingness to take responsibilityMotivation to work.

优先考虑拥有该该领域注册工程师或高级工程师职称者3.3至5年负责锅炉燃烧器工程设计，研究，并任职于国内主要锅炉制造厂或煤燃烧工程公司/研究机构，有主持研究，设计300MW以上燃煤锅炉燃烧器系统的工作经验个人能力要求1。

First of all, some structure parameters, such as the dimension scale of cavity walls, thelocation of primary flow injection holes, the entrance angle of main flow, and so on, havebeen studied, focusing on their influence to the cavity flow field, the forming of vortexes,and the pressure drop in the combustor.

首先研究了模型燃烧器中凹腔长度与前后壁面高度比例、腔内燃料与空气的入射位置、以及主流入射角度等结构参数对腔内流场变化、驻涡形成、以及燃烧器压损等方面性能的影响。

The tank body of the trailer adopts high quality heat-insulation shell and diesel burner flue heating pipe that can use burners or other heaters to heat the asphalt.

该车罐体采用高品质隔热保温外壳并配备柴油燃烧器烟道加热管，可以使用燃烧器或其他加热器喷火加热沥青。

20FT asphalt transport tank container adopts high quality heat-insulation shell and diesel burner flue heating pipe that can use burners or other heaters to heat the asphalt.

20FT运输罐式集装箱罐体采用高品质隔热保温外壳并配备柴油燃烧器烟道加热管，可以使用燃烧器或其他加热器喷火加热沥青。

40FT asphalt storage container adopts high quality heat-insulation shell and diesel burner flue heating pipe that can use burners or other heaters to heat the asphalt.

40FT储存罐式集装箱罐体采用高品质隔热保温外壳并配备柴油燃烧器烟道加热管，可以使用燃烧器或其他加热器喷火加热沥青。

Experimental results show that the equivalence ratio f has a significant effect on the intensity of thermoacoustic instability. In order to sustain the combustion in the Rijke combustor, the inferior and superior limit of the equivalent ratio was 0.63 and 1.75 separately.

试验发现，化学当量比f 对Rijke预混燃烧器内热声不稳定的强度有重要的影响，维持Rijke预混燃烧器持续燃烧的下限极限化学当量比和上限极限化学当量比分别为0.63和1.75。

All adjustments( burner height, burner arm length from the pivot point, counterweight positions along the burner arm) are facilitated by the use of knobs or thumbscrews as the set screws.

所有调节(燃烧器高度、自枢轴点开始的燃烧器臂长、沿着燃烧器臂的平衡块位置)都利用旋钮或指旋螺钉作为调节螺钉实施。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。