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燃气轮机水基清洗剂的研制 总被引:2,自引:0,他引:2
经过大量试验研究,立足国产原材料研制出的燃气轮机基清洗剂的性能指标达到美国军用标准MIL-C-85704B的要求,具有清洗效率高、无腐蚀等特点,是燃气轮机压气机清洗的良好清洗剂。 相似文献
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SM-1型化学清洗剂是复合型固体清洗剂。通过将该清洗剂与化学清洗行业常用的盐酸、硝酸清洗性能的比较,证明其溶垢率与盐酸、硝酸相近,腐蚀率远低于盐酸、硝酸。此外,该清洗剂实现了固体化和低酸性,安全性大为提高。 相似文献
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精密清洗剂替代品HCFC—141b 总被引:2,自引:0,他引:2
针对精密清洗的特点,扼要地讨论了HCFC-141b的物性、环境安全性、匹配性、清洗效率及使用成本,由此认为HCFC-141b是一种品优价廉的精密清洗剂,是CFC-113较为理想的替代品。 相似文献
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提出一种煤炭热力学高效和化学高价值利用新工艺(TCCUC),包括煤炭拔头技术-半焦富氧直燃制备燃气轮机高温工质系统-燃气发电-蒸汽发电系统-CO2捕集技术-干馏拔头产物提质处理技术六个技术模块。该工艺通过煤干馏拔头和焦油加氢等技术,对煤中大分子碳氢化合物进行适当热解和对热解产物焦油加氢处理得到高价值的碳氢液体燃料,实现煤炭的化学高价值利用;通过高温过滤、半焦直燃、燃气轮机与蒸汽轮机相结合等方法,实现对煤炭燃烧过程中高位热能的充分利用,进一步提高热-电联产效率。 相似文献
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麦克维尔中央空调表冷器的结构较为特殊,清洗难度较大.采用自制清洗剂,用化学清洗和物理清洗相结合的方法,取得了较好的清洗效果. 相似文献
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研制出了一种新型干洗剂——喷雾干洗去渍剂。该产品为溶剂型干洗剂,选用氯乙烯为主要溶剂,将其与某些饱和卤代烃和含有酮、醚等化学基团的脂肪族化合物有机溶剂混合,并加入一种活性气体干燥剂,即可制得产品。本产品可除去织物上沾污的油渍,洗涤效果好。 相似文献
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在贵州某公司以半水煤气合成氨工艺的运行维护中,压缩机级间换热器结焦是一个最为突出、急需解决的问题。结焦造成换热效率下降,阻力增加,压缩比降低,严重影响生产的正常运行。本文以贵州某公司合成氨压缩工段换热器结焦为研究对象,根据前期对结焦机理及结焦物化学组分的研究,采用超声清洗方法,选取OP-10、十二烷基磺酸钠作为主剂,氢氧化钠作为碱性助剂,研究对比各试剂的清焦能力,并对其进行复配,考察清洗剂的组成、浓度以及清洗温度对焦垢去除能力的影响。结果表明:OP-10乳化剂最佳浓度为60g/L,十二烷基磺酸钠的最佳浓度为50g/L,氢氧化钠的最佳浓度为3g/L;且当浓度为60 g/L的OP-10乳化剂、50 g/L的十二烷基磺酸钠和3g/L的氢氧化钠复配组成体积比为1∶2∶2的清洗剂,在50℃时对焦垢进行超声清洗的清洗效果最好。 相似文献
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This is a review of gas cleaning methods to be used for particulate removal from the gases emerging from pressurized coal gasifiers or fluid bed combustors at high temperature and high pressure. References are given (collected in tables) for the emissions of these processes, the inlet requirements if the hot gas is to pass a turbine and all cleaning methods that have been proposed in this context, including the removal of gaseous alkalis.
The design feasibility and available performance data for high temperature, high pressure applications of cyclones, electrostatic precipitators, barrier filters (using fibre, felt and sintered filter elements) and various types of granular bed filters, are discussed in some detail and suggestions are made for the further research and development. The theory of capture mechanisms is reviewed in so far as relevant in the present context. Turbulent flow, electrostatic forces, and re-entrainment are the phenomena that require special attention in almost all applications. 相似文献
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High-efficiency air filtration is a basic requirement for the most cost-effective operation of high-efficiency gas turbines. The filtration system protects the gas turbine from damaging debris. In gas turbine/dust collector applications, higher efficiency filtration could be achieved with nanofibers, which provide higher equipment protection than traditional media. With a nanofiber performance filter layer, the dust accumulates on the surface of the filtration media rather than within the media and could be cleaned off easily with a back pulse resulting in long filter life and a low-operating pressure drop. In this study five type of gas tribune nanofiber coated corrugated cellulose/synthetic filter media were developed. Nanofiber coating was adjusted for five filtration efficiency level, 50 ≤ E < 60, 60 ≤ E < 70, 70 ≤ E < 85, 85 ≤ E < 95 and 95 ≤ E, pore size and filter-life of the developed media were evaluated. One of the developed nanofiber coated media was also compared with two other commercial nanofiber coated gas tribune filter media, a glass fiber type filter media and a commercial fine fiber gas tribune filter media. It was seen that, with decreasing penetration levels due to nanofiber coating level, initial 30 cycle durations of filter life evaluation could reach about 229.9 to 250.7 min. Highest final cycle duration of 188.7 min belonged to cellulose/synthetic blend corrugated filter media with penetration of 13.66%. Nanofiber based surface filter media was cleaned up better than fine fiber media and final 30 cycle sequences were significantly higher. Surface of the nanofiber coated media was smoother when compared to fine fiber media and during the initial and final cycle test dust could not penetrate inside and could not hang to this smooth surface. So, with back pulse cleaning cake releasing have performed easily. It was also seen that, for higher filter life nanofiber coating should be uniform and robust to back pulse cleaning. 相似文献
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在热电厂汽轮机的维护工作中,可使用汽轮机专用清洗剂,在不开缸情况下进行在线循环清洗.主要介绍了清洗系统的管路连接方法,清洗过程的控制,以及清洗前后的效果对比等. 相似文献
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分析了焦炉煤气管道沉积物的成因与组成,采用化学药剂溶解和高温氨水清洗相结合的方法进行在线清理后,煤气管道内的沉积物得到有效清除,初冷器后至风机前煤气管道阻力由3 000Pa降至800Pa以下,焦炉装煤冒烟情况得以改善,风机后煤气焦油尘恢复正常,清洗过程安全无隐患。 相似文献