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1. 发明申请

WO1993013414A1 METHOD AND DEVICE FOR MONITORING OF A GAS FLOW, IN PARTICULAR OF A NATURAL-GAS FLOW 审中-公开
标题翻译：用于监测气体流量的方法和装置，特别是天然气流
公开(公告)号：WO1993013414A1
公开(公告)日：1993-07-08
申请号：PCT/FI1992000308
申请日：1992-11-12
申请人： INSTRUMENTTITEHDAS KYTÖLÄ OY , MÄYRÄNEN, Tarmo , KOUKKARI, Sauli , HIISMÄKI, Pekka , KNUUTTILA, Matti , KÅLL, Leif , TIITTA, Antero
发明人： INSTRUMENTTITEHDAS KYTÖLÄ OY
IPC分类号： G01N29/02
CPC分类号： G01F1/712 , G01F1/667 , G01F1/7082 , G01H5/00 , G01N29/024 , G01N2291/02836 , G01N2291/02881
摘要： Method and device for monitoring of the composition of a flowing gas. An oscillation of sound frequency is applied to the gas flow pipe (10) downstream and upstream, and the travel times (t1, t2) of the monitoring sound over a certain measurement distance (L) downstream and upstream are detected. The sound speed (c) or a quantity representing same is determined on the basis of said travel times (t1, t2). This speed (c) is mainly dependent on the average molecular weight of the gas to be monitored. The temperature (T) of the flowing gas is measured, and on the basis of the measurement of temperature, the sound speed that has been reduced to a certain reference temperature T0 is determined from the formula c0 = c . 2ROOT (T0/T), which is applicable to an ideal gas and wherein T = absolute measured temperature of the gas, T0 = chosen absolute reference temperature, c = measured sound speed, and c0 = sound speed reduced to the reference temperature, or by using a corresponding more realistic formula. When the reduced temperature (c0) differs from its range of expected values (c1...c2), an alarm signal or control signal is given. Alternatively, the limits (C1, C2) of the range of expected values can be reduced to temperature.
摘要翻译：用于监测流动气体组成的方法和装置。声音频率的振荡被施加到下游和上游的气体流管（10），并且检测在下游和上游的某个测量距离（L）上的监视声音的行进时间（t1，t2）。基于所述行进时间（t1，t2）确定声速（c）或表示相同的数量。该速度（c）主要取决于待监测气体的平均分子量。测量流动气体的温度（T），并且基于温度测量，已经降低到特定参考温度T0的声速由公式c0 = c确定。 2ROOT（T0 / T），适用于理想气体，其中T =气体的绝对测量温度，T0 =选择的绝对参考温度，c =测量声速，c0 =降低到参考温度的声速，或通过使用相应的更逼真的公式。当降温（c0）与预期值（c1 ... c2）的范围不同时，给出报警信号或控制信号。或者，期望值的范围的限制（C1，C2）可以降低到温度。

2. 发明申请

WO2012140319A1 METHOD FOR DETERMINING CONDITION OF PIPING AND A SEQUENCE CONTROLLED SAMPLE PUMP 审中-公开
标题翻译：用于确定管道条件和序列控制样品泵的方法
公开(公告)号：WO2012140319A1
公开(公告)日：2012-10-18
申请号：PCT/FI2012/050346
申请日：2012-04-05
申请人： TEKNOLOGIAN TUTKIMUSKESKUS VTT , ROINE, Johannes , KÅLL, Leif , ANTSON, Olli
发明人： ROINE, Johannes , KÅLL, Leif , ANTSON, Olli
IPC分类号： F17D5/06 , F04B43/00
CPC分类号： G01N1/14 , F04B43/02 , F04B51/00 , G01M1/00 , G01N1/2214 , G01N1/2258 , G01N1/24 , G01N29/14 , G01N29/222 , G01N2291/0258
摘要： The invention relates to a sampling apparatus and method. In the sampling method, a sample is led through a flowline (20) to a pump (5) and from there on to sampling means (12, 13). According to the invention, the pump (5) is formed of an actual pump (5) and magnetic valves (4, 6) located on either side of it, which are controlled in such a way that the pumping is pulse-like.
摘要翻译：本发明涉及采样设备和方法。在采样方法中，样品被引导通过流线（20）到泵（5）并且从那里引导到采样装置（12,13）。根据本发明，泵（5）由实际的泵（5）和位于其两侧的电磁阀（4,6）形成，这些泵以脉冲状的方式被控制。

3. 发明申请

WO1993013390A1 METHOD AND DEVICE FOR MEASUREMENT OF THE FLOW VELOCITIES OF GASES AND/OR OF QUANTITIES THAT CAN BE DERIVED FROM SAME 审中-公开
标题翻译：用于测量气体和/或可从其中衍生的数量的流量的方法和装置
公开(公告)号：WO1993013390A1
公开(公告)日：1993-07-08
申请号：PCT/FI1992000307
申请日：1992-11-12
申请人： INSTRUMENTTITEHDAS KYTÖLÄ OY , MÄYRÄNEN, Tarmo , KOUKKARI, Sauli , HIISMÄKI, Pekka , KNUUTTILA, Matti , KÅLL, Leif , TIITTA, Antero
发明人： INSTRUMENTTITEHDAS KYTÖLÄ OY
IPC分类号： G01F01/66
CPC分类号： G01P5/245 , G01F1/667 , G01F1/7082 , G01F1/712
摘要： Method and device of acoustic flow measurement for measurement of the flow velocities of gases and/or of quantities that can be derived from same. Long-wave sound is transmitted into a measurement pipe (10). The sound signals passing in the gas flow downstream and upstream are detected by means of two sound detectors (14a, 14b) placed in connection with the measurement pipe (10) at a specified distance (L) from one another, the flow velocity (v) of the gas that flows in the measurement pipe (10) being determined by making use of polarity correlation (15; 151, 152) of said signals. The frequency of the sound that is transmitted into the measurement pipe (10) is scanned between a certain minimum and maximum frequency (fmin...fmax). The measurement signals (fa &cir& _(t), fb &cir& _(t)) arriving from the two sound detectors (14a, 14b) are passed to a narrow-band filter (17a, 17b) or system of filters (17a1, 17a2, 17b1, 17b2). The passband of said filters (17) is scanned synchronously with the frequency scanning of the sound transmission. The duration of the frequency scanning and the width of the passband of said filters (17) are chosen so that, at the moment of the measurement sequence, the measurement signal detected by each sound detector (14a, 14b) has access through its filter (17) substantially without attenuation, as well as so that the interference frequencies substantially different from the mean frequency (f0) of the filters (17) are attenuated significantly.
摘要翻译：用于测量气体流速和/或可从其导出的量的声流测量的方法和装置。长波声传输到测量管（10）中。在下游和上游的气流中通过的声音信号通过与测量管（10）连接放置在彼此指定距离（L）处的两个声音检测器（14a，14b）来检测，流速（v ）通过利用所述信号的极性相关（15; 151,152）来确定在测量管（10）中流动的气体。传输到测量管道（10）的声音的频率在一定的最小和最大频率（fmin ... fmax）之间扫描。从两个声音检测器（14a，14b）到达的测量信号（fa＆cir_（t），fb＆cir_（t））被传递到窄带滤波器（17a，17b）或滤波器系统（17a1,17a2 ，17b1,17b2）。所述滤光器（17）的通带与声音传播的频率扫描同步扫描。选择频率扫描的持续时间和所述滤波器（17）的通带的宽度，使得在测量序列的时刻，由每个声音检测器（14a，14b）检测的测量信号通过其滤波器（ 17）基本上没有衰减，并且使得与滤波器（17）的平均频率（f0）基本不同的干扰频率被显着地衰减。

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