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科氏质量流量计实验和应用中关键技术分析.pdf 101页
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科氏质量流量计实验和应用中关键技术分析
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Research on key technologies of Coriolis mass
flowmeter in experiments and applications
Coriolis mass flowmeter which can directly measure the mass of flow
flowmeters
currently,
precision,
repeatability and measurements of multi -parameter s in different fluid conditions . In
this thesis, several key problems in experiments and applications of Coriolis mass
flowmeter are researched and analyzed, and some effective solutions are proposed.
transmitters
temperature
enviroment,
temperature
the reason s
countermeasures of high temperature resistant are also proposed.
The experimental
show that these countermeasures are feasible and effective .
transmitter
Coriolis mass flowmeter, a steady-state amplitude diagram analysis method for the
analog drive circuit is proposed
to analyze the
matching processes such as startup,
steady-state
oscillation
temperature
environment.
best -match
efficiency by 20% and ensure normal operation of the flowmeter in the high
temperature
environment
experimental
matching method is simple, feasible an d effective.
m icrobending
high -frequency signal processing hardware platform is developed which is based on
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压缩机何时关闭防喘振阀，是在最低可调转数后 还是在turndown点后
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各位大侠，如题。压缩机何时关闭防喘振阀，是在最低可调转数后 还是在turndown点后。目前压缩机资料是在turndown点后（压缩机低负荷运行点）后开始关防喘振。&&但是实际操作都应该在防喘振可调后关闭防喘振阀？到底哪个队？
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可以看压缩机的防喘振曲线，看工作点位置，如果工作点远离防喘振曲线，并且相应工艺参数没有大幅变化情况下可以关闭防喘振阀。我们是在低负荷运行点关闭的防喘振阀然后投的自动，此前一直是半自动状态。
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防喘振阀关闭，当然是机组处于远离喘振区的情况下，才可以允许关闭防喘振阀。你没有说清楚防喘振的设计方式，机组情况，操作也就不一样。大系统有专有防喘振控制系统，特别是介质气系统，一般判断倒流就认为喘振发生，防喘阀就开1/3 如果继续倒流，则全开，再跳车。因此，关闭操作是在机组负荷起来后，也就是远离喘振区后，才关闭的。还有，防喘振阀集成调节功能（可开大、关小操作），也担负迅速开启的功能（喘振发生接指令迅速打开）于一个阀门上，这样的情况，只要机组不喘振，防喘阀就是调节用的，可开可关。供参考。
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turndown是什么意思
输入英文单词或中文词语查询其翻译
turndown是什么意思 turndown在线翻译 turndown什么意思 turndown的意思 turndown的翻译 turndown的解释 turndown的发音 turndown的同义词
turndown英 ['t?:nda?n]　美 ['t?:n?da?n]　turndown 基本解释形容词翻下的，翻折的名词低落; 拒绝; 谢绝; 可翻下部分手机查看turndown的意思，微信扫一扫页面右侧二维码。关注 911查询大全 后发送 turndown 即可turndown 网络解释1. 1. 关小,调低;拒绝：throwaway扔掉,抛弃;错过(机会),浪费(金钱等) | turndown关小,调低;拒绝 | turnin交还,上交;上床睡觉2. 翻领的：turncock 供水栓 | turndown 翻领的 | turned-on 疯狂的3. 倾炉：turn over cooling bed 翻转冷床 | turndown 倾炉 | turning 翻转4. 降负荷运转：设计余量 over design | 降负荷运转 turndown | 消除瓶颈 Debottleneckingturndown 双语例句1. For headache, wakefulness, emotional turndown, thinking torpor, fatigable feeling caused by irregularity of central nervous systems because of chronically working on computers.&&&&适用于因长期从事电脑操作中枢神经失调引起的情绪低落、思绪迟钝、常感疲乏等症。2. The meter is bi-directional and it has an extremely large turndown ratio, up to 400:1 in some models - with full accuracy at extremely low flow rates.&&&&该表是双向的，它有一个非常大的量程比，达到400：1，在某些型号充分准确-在极低的流速。3. As shown in Figure 4.3.17, if the DIVA is installed with a vertical flow direction then the pressure limit is reduced, and the turndown ratio will be affected if the flow is vertically upwards.&&&&正如图4.3.17 ，如果归档安装垂直流动方向的压力，然后限制减少，和床的比例将受到影响，如果流量是垂直向上。4. turndown的反义词4. Due to its advantage in accuracy, turndown ratio and no excess pressure drop, the current market for ultrasonic flowmeter technology is growing rapidly in flow measurement. However, the ultrasonic flowmeter develops just some ten years, and has not run in all fields it can be, so it provides many distinct and difficult challenges.&&&&然而，由于超声波流量计只是在近几十年才出现的一种新型仪表，还有很多地方不完善，没有得到普遍的应用，因而在科学技术迅速发展的今天，非常值得去进行研究，这便是本课题选题的一大因素。5. He TriOx is ideally suited for industrial heat processes in excess of 1600F (870C) and is capable of efficient operation with a 10:1 on ratio turndown.&&&&riOx非常适合工业加热过程中的高温环境，高达1600华氏度（870摄氏度），并且可提高生产效率。6. The effects of coalescence filtration temperature, amount of ammonia, alcohol consumption, volume ratio of solvent to oil on the deacidification process, material regeneration of coalescence filtration, deacidification`s turndown ratio and the product quality of naphthenic acid were studied.&&&&考察了氨用量、乙醇用量、剂油体积比、聚结过滤温度等对脱酸效果的影响以及聚结过滤材料的再生、脱酸的操作弹性和环烷酸产品的质量。7. 7. CFB boiler has such features as fuel flexibility, high combustion efficiency, low emissions, rapid load change ability and broad turndown ratio etc.&&&&它具有燃料适应性广、燃烧效率高、氮氧化物排放低、负荷调节比大和负荷调节快等突出优点。8. 8. A turndown of 10:1 is achievable in a good installation with the turbine bearings in good condition.&&&&甲床的10：1是可以实现的一个很好的安装涡轮轴承处于良好状态。9. May I do the turndown service for you now?&&&&我现在可以为您做晚间打扫吗？10. But the worldwide economic turndown is affecting the plans of some schools.&&&&但是全世界的金融衰退影响了一些学校的计划。11. The turndown for this unit is 60% of the design capacity.&&&&&&在本例中操作弹性是60%~120%，其中60%就是最低可调负荷。12. 12. May I do the turndown service now?&&&&&&我现在可以为您做夜床吗？13. Turndown is limited to between 4:1 and 5:1 because of the square root relationship between flow and pressure drop.&&&&&&床是有限的，以4：1之间，因为和5：1的平方根之间的关系流量和压降。14. This limits the accuracy to a small turndown range.&&&&&&这限制了准确的一个小翻领范围。15. DP flow measurement have a limited turndown capability, because of the square-root calculation of flow.&&&&&&在压差流量的测算中，由于公式采用瞬时流量的算术平均值的算法，所以是一个有限元的极限负荷平均值。16. It`s you include your spark of life, your nattiness, your humors, your exultation, your turndown.&&&&&&你的阳光，你的帅气，你的幽默，你的得意，你的低回，都是你。17. The patented atomizing at low air pressure(1 PSI = 70 mbar) generates a wide turndown.&&&&&&专利低压雾化技术产生宽广的范围。18. Global turndown means producers must have top production on minimal feed.&&&&&&全球床意味著生产商必须有一流的生产上最小的饲料。19. 19. From the foregoing it can be shown that the swirling steam-based mechanical atomized-oil sprayer can maximally improve the atomization quality under a low-load operating condition and has a relatively large turndown ratio with a steam consumption rate lower than that of an often-used pneumatic atomized-oil sprayer.&&&&&&由此表明，旋流蒸汽机械雾化喷油器可以极大地改善低工况雾化质量，具有较大的调节比，气耗量也优于常见的气动雾化喷油器。20. Turndown Ratio and Loading Chart of Structured Packing&&&&&&规整填料的操作弹性和负荷性能图turndown 单语例句1. Despite the economic turndown, statistics show that luxury brand consumption in Hangzhou is on the rise in 2009.2. Some pieces have turndown collars, a typical symbol of many nomadic ethnic groups on horseback.3. But we should still be on guard against the uncertainties ahead and some of the problems underlying the economic performance amid the current economic turndown.4. The stakes are high for our member companies whose expansion plans depend on China avoiding a major economic turndown.turndown 英英释义noun1. the act of refusing an offer&&&&e.g. the turndown was polite but very firm&&&&Synonym: turndown是什么意思,turndown在线翻译,turndown什么意思,turndown的意思,turndown的翻译,turndown的解释,turndown的发音,turndown的同义词,turndown的反义词,turndown的例句,turndown的相关词组,turndown意思是什么,turndown怎么翻译,单词turndown是什么意思常用英语教材考试英语单词大全 (7本教材)
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