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-way valve
相关语句
  四通阀
     Theoretical study of the characteristics of zero opening and asymmetrical 4-way valve
     零开口非对称四通阀特性的理论研究
短句来源
     But some problems occurs in operation such as the system pressure-back periodic fluctuation influences stable running,process gas bypass causes incinerator flame out when 4-way valve switch,system fluctuation etc.
     但是在生产运行中,发现存在有因系统回压周期性波动影响装置平稳生产、四通阀切换时过程气短路引起灼烧炉熄火、系统波动等问题。
短句来源
  相似匹配句对
     the Numerical Analysis of Flow Character inside the 4 Way Valve
     四通换向阀内部流动特性的数值分析
     Failure Analysis of 4-way Reversing Valve for Air-Condition
     空调四通换向阀失效分析
短句来源
     Identification and simulation of 4-way reversing valve's reversing procedure
     四通换向阀动态换向过程辨识仿真
     U(4)?
     U(4)?
短句来源
     4) .
     4).
短句来源
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The central part of the type GH-1 Gas -Mixer in cartain proportion is the system of making gases mixed in certain proportion and the pressure feedback system.It is designed for increasing the accuracy of gas -mixed proportion and the stability of flowing gases. The former consists of a gas-flow meter, a one-way valve, a flowing together four -way pipe and some other elements. The latter consists of a electro -magnetic air valve, a pressure switch, a normal flow-controller and some other elements....

The central part of the type GH-1 Gas -Mixer in cartain proportion is the system of making gases mixed in certain proportion and the pressure feedback system.It is designed for increasing the accuracy of gas -mixed proportion and the stability of flowing gases. The former consists of a gas-flow meter, a one-way valve, a flowing together four -way pipe and some other elements. The latter consists of a electro -magnetic air valve, a pressure switch, a normal flow-controller and some other elements. The application and requirements of the elements are described in detail in the article.Besides, the artical estimates the dimensions of the gas -storing can and the quantity of welding torche to which the type GH-1 Gas-Mixer is capable of suppling different gases. The type GH-1 Gas-Mixer is used suitably at the gas supply station for the gas shielded arc welding in general welding shops and can meet the needs of many torches at the same time.The gas -mixer can mix two or three incombustible gases in order to get any mixed gases. As proved by the experiments, the accuracy of the proportion gas mixture can meet the needs of production.

CH—1型混合气体配比器的核心部分是气体配比混合系统和压力反馈系统。其目的是为提高气体混合比的精度和气体流量稳定程度而设计的。前者由气体流量计、单向阀、汇流四通等元件组成;后者由电磁气阀,压力开关,恒流控制器等元件组成。这些元件的作用和要求,于本文中都作了较详细的论述。 此外,本文对储气罐的容积大小及该配比器能配用的焊炬数量也进行了估算。该配比器适合于一般焊接车间气体保护焊的供气站使用,能供给焊接岗位上多把焊炬使用。该配比器可以将两种或三种不可燃气体混合成住意的混合气体。实验表明,其混合比精度可以满足生产要求。

The conditions of HPIEC separation of Cl-, Br- and I- were studied. The ions were separated within 35 minutes by using NaNO3 as an eluent. the chloride and bromide contents of.some samples were- determined. The trace amounts (ppb order) of chloride in pure water were determined by using a pre-column without a four or six way valve.The IEC becaviouf of Cl-, Br- and I- was interpreted from the theory of hard and soft acids and bases. The following experimental formula was obtained.lgD= 0.24φlg[B]-lg[B] +...

The conditions of HPIEC separation of Cl-, Br- and I- were studied. The ions were separated within 35 minutes by using NaNO3 as an eluent. the chloride and bromide contents of.some samples were- determined. The trace amounts (ppb order) of chloride in pure water were determined by using a pre-column without a four or six way valve.The IEC becaviouf of Cl-, Br- and I- was interpreted from the theory of hard and soft acids and bases. The following experimental formula was obtained.lgD= 0.24φlg[B]-lg[B] + 0.490 + 0.61where D is the distribution coefficient of an anion, [B] is the concentra-tion of the eluent, φ is the softness of the anion as a base.

用国产高效离子交换色谱仪及国产阴离子交换树脂研究了分离Cl~-、Br~-、Ⅰ~-的条件,以硝酸钠为洗脱液,在三十五分钟内完全分离了上述三种离子。进行了一些样品的定量测定。用无换向阀的予柱富集测定了去离子水中ppb级的Cl~-。从软硬酸碱理论的观点讨论了Cl~-、Br~-.Ⅰ~-的色谱行为,得出了用结构参数及实验条件估算分配系数的经验式:1gD=0.24φg[B]-1g[B]+0.49φ+0.61。

The conditions of HPIEC separation of sulfite radical, sulfion and thiosul-fate radical were studied. The titled anions were separated within 9 minutes using NaNO_3 as an eluant. Trace amounts(at ppm and ppb levels)of sulfur compounds in waste water were determined by a pre-column without use of a four or six way valve. The IEC behaviour of sulfur compounds was interpreted from kinetics of IEC. The following experimental formula was obtained:logD=a+(-0. 025-0. 518k|Z|). log[B] where D is the distribution...

The conditions of HPIEC separation of sulfite radical, sulfion and thiosul-fate radical were studied. The titled anions were separated within 9 minutes using NaNO_3 as an eluant. Trace amounts(at ppm and ppb levels)of sulfur compounds in waste water were determined by a pre-column without use of a four or six way valve. The IEC behaviour of sulfur compounds was interpreted from kinetics of IEC. The following experimental formula was obtained:logD=a+(-0. 025-0. 518k|Z|). log[B] where D is the distribution coefficient of an anion,[B]the concentration of the eluant, a the constant concerned with properties of the anion and nature of the resin and the solution, k the number of sulfur atoms in the anion, Z the mean oxidation number of sulfur.

用国产高效离子交换色谱仪及国产阴离子交换树脂研究了分离SO_3~(2-),S~(2-),S_2O_3~(2-)的色谱条件。以硝酸钠为洗脱液,可在九分钟内完全分离上述离子。进行了一些样品的定量测定,用无换向阀的预柱富集测定了污水中PPm级的S~(2-)及定量回收了ppb级的S_2O_3~(2-)。从色谱动力学的观点试讨论了SO_3~(2-),S~(2-)及S_2O_3~(2-)的色谱行为,得出了用结构参数及实验条件估算分配系数D的经验式: 式中a是与离子性质及交换条件有关的常数,k为硫化物阴离子中硫原子的数目,Z为硫的平均氧化数,B为洗脱液浓度。

 
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