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化工研发
这是什么材质? 求助,这是什么材质?SA516Gr.70+SA240Gr304/SA240Gr304查看更多 5个回答 . 3人已关注
大力推进煤炭高效清洁燃烧技术? 本文由 盖德化工论坛转载自互联网 我国能源结构以煤为主的局面和缺油少气的情况将长期不会改变。目前我国煤炭燃烧利用占煤炭利用的80%,其中煤炭燃烧发电占80%,燃烧热能直接利用占20%;煤炭转化利用占煤炭利用的20%,其中以炼焦和气化为主。由于煤炭燃烧会产生气体污染物(二 氧化硫 、 氮氧化物 )和灰渣,以及二氧化碳,煤炭高效清洁燃烧技术现已列入国家中长期科技发展规划。   煤炭燃烧技术分为煤炭直接燃烧技术、煤炭燃烧发电技术和整体煤气化联合循环(IGCC)发电技术。煤炭直接燃烧技术主要应用在高效洁净燃煤发电上。通过浓缩煤粉燃烧技术,保持较高的燃烧效率,还可以将炉内火焰内氮氧化物还原,不降低火焰温度以及燃烧器本体分级燃烧,保持较低的氮氧化物排放浓度。煤炭燃烧发电技术主要应用在循环硫化床锅炉上,烟煤、褐煤、无烟煤、煤矸石、煤泥都可以作为该锅炉的燃料。而且炉内可脱除二氧化硫,氮氧化物直接排放达标,灰渣可综合利用,污染物排放量低。整体煤气化联合循环(IGCC)发电技术主要应用在500万千瓦的IGCC电站。以华能天津IGCC电厂为例,负荷达到90%以上,连续运行时间近700小时,目前供电效率为32%,3年左右使得IGCC连续运行超过2200小时,效率达到38%以上。   未来我国煤炭燃烧技术主要集中在以下四个方面:高效洁净燃煤发电技术、低阶煤高效洁净梯级发电技术、特殊煤质高效洁净发电技术、燃烧污染物排放控制技术。查看更多 0个回答 . 3人已关注
无损检测质量控制要点? 无损检测 质量控制要点----中国化学工程查看更多 3个回答 . 5人已关注
关于低温乙烯装卸车? 大家在做低温 乙烯 (-103℃)装卸车是都用什么工艺啊?是用 低温泵 还是 压缩机 装卸车啊?一般选哪个厂家的设备?查看更多 1个回答 . 2人已关注
HAC-276是什么材质啊?? 哈氏合金C-276在 稀硫酸 和含有SO2还原介质中的最高耐温是多少?此特点例子是使用在烟气温度约400℃的8%二 氧化硫 炉气的 文氏管 稀酸洗涤中,因为目前使用的石墨衬铅外面碳钢的形式,其石墨衬里经常破碎,想改用哈氏合金C-276的。另外,是否C-22比C-276的耐温性能好?谢谢!查看更多 4个回答 . 2人已关注
粗苯回流不稳定和塔顶温度高100多的原因及影响? 粗苯回流不稳定和塔顶温度高100多的原因及影响 查看更多 2个回答 . 2人已关注
中外安全管理对比? 中外安全管理对比 查看更多 5个回答 . 5人已关注
内蒙古40亿方煤制气联产75万吨煤制烯烃项目近况? 查看更多 6个回答 . 5人已关注
如何判断煤气发生炉内结疤?原因何在?如何处理? 如何判断 煤气发生炉 内结疤?原因何在?如何处理?查看更多 3个回答 . 1人已关注
合成氨碱液脱硫,富盐如何过滤? 请大师们指点,我厂脱硫采用碱液脱硫,富盐如何过滤?现全部排入造气污水循环池,会造成管道结垢吗查看更多 2个回答 . 1人已关注
Chinese Valentine's Day(七巧节)? Raise your head on August 19 and gaze at the stars, you will find something romantic going on in the sky.VALENTINE'S Day in China, the seventh day of the seventh lunar month, falls on August 19 this year. That is, on Sunday evening, Niu Lang and Zhi Nu will meet on a bridge of magpies(鹊桥) across the Milky Way(银河). Chinese grannies will remind children that they would not be able to see any magpies on that evening because all the magpies have left to form a bridge in the heavens with their wings. Romantic legend The legend has been handed down for nearly 2 millennia. The story has been recorded as far back as the Jin Dynasty (256-420 AD). Poets composed hundreds of verses on the love story and many types of Chinese opera tell the story. The Chinese people believe that the star Vega(织女星), east of the Milky Way, is Zhi Nu and, at the constellation of Aquila(天鹰座), on the western side of the Milky Way, Niu Lang waits for his wife. Zhi Nu was said to be the youngest of seven daughters of the Queen of Heaven. With her sisters, she worked hard to weave beautiful clouds in the sky, while Niu Lang was a poor orphan cowherd, driven out of his home by his elder brother and his cruel wife. Niu Lang lamented over his lonely and poor life with an old cow, his only friend and companion. The magical cow kindly told him of a way to find a beautiful and nice woman as his life companion. Under the direction of the cow, Niu Lang went to the riverside on an evening, where the seven fairies slipped out of their heavenly palace to bathe. He took one of the beautiful silk dresses the fairies had left on the bank. When the fairies left the water, the youngest couldn't find her clothes and had to see her sisters fly back to heaven without her. Then Niu Lang came out with the dress and asked the youngest fairy, Zhi Nu, to stay with him. Several years passed on Earth, which were only a few days in heaven. Niu Lang and Zhi Nu lived happily together and had two children before the Queen of Heaven discovered Zhi Nu's absence. She was so annoyed she had Zhi Nu brought back to heaven. Seeing his beloved wife flying in the sky, Niu Lang was terrified. He caught sight of the cowhide hanging on a wall. The magical cow had told him before dying of old age: "Keep the cowhide(牛皮) for emergency use." Putting the cowhide on, he went after his wife with his two children. With the help of the cowhide, Niu Lang was able to follow Zhi Nu into heaven. He was about to reach his wife when the Queen showed up and pulled off her hairpin to draw a line between the two. The line became the Silver River in heaven, or the Milky Way. Zhi Nu went back to the heavenly workshop, going on weaving the clouds. But she was so sad, and missed her husband across the Silver River so much that the clouds she weaved seemed sad. Finally, the Queen showed a little mercy, allowing the couple to meet once every year on the Silver River. Well-known poem One of the most famous poems about the legend was written by Qin Guan of in the Song Dynasty (960-1279). Fairy Of The Magpie Bridge Among the beautiful clouds, Over the heavenly river, Crosses the weaving maiden. A night of rendezvous, Across the autumn sky. Surpasses joy on earth. Moments of tender love and dream, So sad to leave the magpie bridge. Eternal love between us two, Shall withstand the time apart. (Translated by Kylie Hsu) 鹊桥仙 宋·秦观 织云弄巧 飞星传恨 银汉迢迢暗度 金风玉露一相逢 便胜却人间无数 柔情似水 佳期如梦 忍顾鹊桥归路 两情若是久长时 又岂在朝朝暮暮 Compared with love stories inWestern legends, the story of Niu Lang and Zhi Nu seems not as intense or passionate. Love doesn't kill or break up the barrier between them. They just wait patiently on the riverbank, believing that their love can withstand their time apart. It is faith and emotional liaison instead of physical attraction and desire that is emphasized in the story as well as in many other Chinese folktales(民间故事) about love. In only a few Chinese folk love stories can be found a description of the physical appearances of the hero and heroine. In the "Butterfly Lovers", the heroine, dressed as a boy to attend school, falls in love with a classmate. After they have lived together as classmates for years, the hero did not have the slightest clue that his best friend is actually a girl! Chinese ceremonies The seventh day of the seventh lunar month is the only Chinese festival devoted to love in the Lunar calendar. Unlike St. Valentine's Day in Western countries there is not so much emphasis on giving chocolates, flowers and kisses. Instead, Chinese girls prepare fruits, melons and incense(熏香) as offerings to Zhi Nu, the weaving maiden, praying to acquire high skills in needlecraft(裁缝), as well as hoping to find satisfactory husbands. In the evening, people sit outdoors to observe the stars. Chinese grannies would say that, if you stand under a grapevine, you can probably overhear what Zhi Nu and Niu Lang are talking about查看更多 1个回答 . 1人已关注
审核人通过名单? 2014年6月份审核人考试通过名单出来啦 http://www.cscbpv.org.cn/index.php?m=content&c=index&a=show&catid=48&id=221 查看更多 7个回答 . 5人已关注
汽油的平均相对分子质量如果计算?? 有位搞设计的专家跟我说根据恩氏蒸馏做出来的馏程和密度,可以计算平均相对分子质量,在加氢精制装置,稳定塔塔顶和塔底出来的馏份有无什么方法计算它的分子量么??谢谢大家了,第一次发帖 查看更多 5个回答 . 3人已关注
圆柱滚子轴承能否承受轴向力? nu型、n型 nj型 nup型 圆柱滚子轴承 能否承受轴向力?查看更多 3个回答 . 5人已关注
甲醇储槽 粗甲醇槽怎么煮蜡? 甲醇 储槽粗甲醇槽、长时间是否需要煮蜡、大概能不能说下步骤、以及注意事项查看更多 2个回答 . 4人已关注
冬季粗苯开车? 前段时间,因产量低粗苯一直停车,近期将提产,需要开粗苯,请问下各位前辈,有那些方面需要注意查看更多 1个回答 . 3人已关注
PDF转换CAD的小软件!今天刚刚找到!免费版的? 这个正是我非常需要的软件,非常谢谢楼主, yienhan@163.com 查看更多 276个回答 . 4人已关注
关于异地报名注册化工工程师的问题? 请问我两年前在天津通过基础考试,今年由于工作原因想在江苏考专业考试,档案还在天津,能够报名吗? 另外还有就是老生长谈的问题了,单位必须具备设计资质,除了设计院别的可以吗,比如矿冶研究院这种企业? 拿到有资质单位的章可以个人报名吧,必须通过单位集体去报吗? 江苏省人事考试中心电话一直打不通,真心求助各位前辈,希望能解决我的疑问查看更多 1个回答 . 5人已关注
PROii串联换热器在HYRI模拟中不收敛问题? 最近在做一个污水汽提模型,在HIRI中核算 换热器 时总是出现两个 串联 的换热器无法正常模拟,换热温度分配老是出现问题,具体模型在附件中,主要问题是为何模拟时串联传热器的第一个换热器出口温度出现很大偏差,倒是无法正常运算,大家帮忙看看 查看更多 5个回答 . 2人已关注
化工机器与化工设备的区别是什么? 化工机器与化工设备的区别是什么?二者有什么不同?查看更多 6个回答 . 1人已关注
简介
职业:新奥(舟山)液化天然气有限公司 - 化工研发
学校:平顶山学院 - 化学化工学院
地区:台湾省
个人简介:时间是真理的挚友。查看更多
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