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CN114942060B - A method for online verification of natural gas measurement standard device - Google Patents

A method for online verification of natural gas measurement standard device Download PDF

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CN114942060B
CN114942060B CN202210586623.6A CN202210586623A CN114942060B CN 114942060 B CN114942060 B CN 114942060B CN 202210586623 A CN202210586623 A CN 202210586623A CN 114942060 B CN114942060 B CN 114942060B
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standard
limit
control
center line
warning
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CN114942060A (en
Inventor
宋超凡
吴岩
周雷
陈行川
刘喆
伍开成
刘译文
郭哲
郑传波
张熙然
黄冠文
姜宇文
孙楠
李雪健
韩巍
韩昌柴
郭磊
刘勇
符少权
洪俊烈
徐健航
刘畅
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China Oil and Gas Pipeline Network Corp
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China Oil and Gas Pipeline Network Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention discloses a method for online checking of a natural gas measurement standard device, which relates to the technical field of natural gas measurement and aims to solve the problems that a quality monitoring means can practically detect the stability state of the accuracy of the measurement standard device, but hysteresis is unavoidable and the change of the measurement standard performance cannot be mastered at the first time, and the technical scheme is characterized by comprising the following steps of S1, calculating a central line; A1 is calculation of indication errors, A2 is calculation of central lines, S2 is setting of control limits, S3 is calculation of early warning limits, B1 is data discrimination and selection, B2 is dynamic early warning calculation, B3 is calculation of control limits, B4 is multi-path standard table early warning limits, S4 is overrun judgment, C1 is selection of early warning limits and control limits, C2 is single-path standard table overrun judgment, and C3 is multi-path standard table overrun judgment. The effects of accurate measurement and calculation, calculation of various standard tables and convenience in calculating overrun are achieved.

Description

Online checking method for natural gas metering standard device
Technical Field
The invention relates to the technical field of natural gas metering, in particular to a method for online checking of a natural gas metering standard device.
Background
In order to ensure accurate transmission of the measurement standard quantity value, each domestic natural gas verification mechanism regularly carries out quality monitoring work such as repeatability stability test and period check on each set of measurement standard device, and if the measurement standard device quantity value generates deviation through the test, the measurement standard device quantity value is required to be evaluated except for eliminating the deviation, and quality tracing is carried out if necessary.
The prior art scheme has the following defects that a quality monitoring means can practically detect the stability state of the accuracy of a metering standard device, hysteresis is unavoidable, the change of the metering standard performance cannot be mastered at the first time, a using unit needs to reasonably formulate a metering standard quality monitoring test period by combining the device magnitude failure risk and the test cost, once the deviation is found, the quality tracing of the magnitude transmission result in the period is needed, and if the magnitude transmission involves other verification mechanisms, the influence is more complex.
Disclosure of Invention
The invention aims to provide a method for online real-time checking of a natural gas metering standard device, which is used for realizing quality control of metering standards and ensuring accurate and reliable natural gas value transmission.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A method for online checking of a natural gas metering standard device comprises the following steps:
s1, calculating a central line, namely calculating the indication error and repeatability of a flow point to obtain the indication error of the flow point, calculating the central line of a standard table according to the obtained indication error to obtain the average value of a plurality of groups of indication errors, and setting the average value of the plurality of groups of indication errors as a central line value;
a1, calculating an indication error, namely calculating the repeatability of the flow point according to the indication error, wherein the indication error of one flow point is the average value of indication errors of each test corresponding to the flow point, and the indication error is the indication error of the flow between a standard table and a fixed check table, and the repeatability of the flow point is calculated according to the indication error, and the repeatability of the test result of the flow point is the Bessel formula of the indication error of each test corresponding to the flow point:
;
Wherein Er is the repeatability of a flow point verification result,
Ei is the error in the indication of the ith assay,
Average value of n times of verification results;
a2, calculating a central line, namely taking the indication error of each flow point in one verification as a basic unit for each standard table, and forming a subgroup by 10 basic unit data, wherein the average value of each subgroup Taking 10 subgroupsWhen the average value of the first 10 subgroups is the center line, after the standard table or the check table is recalibrated, the average value of the first 10 subgroups is taken as a new center line, and when the number of the subgroups is less than 10 and the condition of calculating the center line is not provided, the center line is taken as 0;
s2, setting control limits, namely respectively making the control limits of each standard meter pipeline, and setting the preliminary set control limits of each standard meter pipeline;
S3, calculating an early warning limit, namely checking the percentage, the flow points, the times, the pipeline combination and the indication error type parameters of the flow meter one by one, judging and selecting the data, and calculating the early warning limit according to the selected value;
The method comprises the steps of B1, judging and selecting data, namely, combining a standard table and a check table pipeline used for one-time verification, namely, 1 check table and n standard tables, selecting the condition of only 1 check table and1 standard table to calculate the early warning limit, and taking the two flow intervals above and below the demarcation flow of the standard table as the early warning limits of the corresponding standard tables according to the dynamic early warning calculation results;
B2, dynamic early warning calculation, namely dividing the standard meter into two sections according to the dividing flow, respectively making control limits in the two sections, calculating the early warning limits by adopting an average value-standard deviation control chart, taking the indication error of each flow point as a basic unit for each standard meter, forming a subgroup by 10 basic unit data, and calculating the statistical control quantity as the average value of each subgroup when adopting the average value-standard deviation control chart Standard deviation s for each subgroup, average value of each subgroupAnd the average of the standard deviations of the subgroups;
B3, calculating control limits, namely calculating a Central Line (CL), an early warning upper limit (UCL), an early warning lower limit (LCL) and an average control diagram of each control diagramThe graph has a central line CL, an early warning upper limit UCL and an early warning lower limit LCL, which are respectively CL=;
UCL=+A3;
LCL=A3;
Order theD represents the early warning limit half width;
average value control diagram-S diagram, center line CL, upper control limit UCL, and lower control limit LCL, respectively: cl=respectively ;
UCL=B5;
LCL=B6;
The multi-channel standard meter early warning limit is calculated according to the single-channel standard meter because the caliber and the flow range are the same, and the multi-channel standard meter early warning limit is calculated by combining a plurality of single-channel early warning limits when the multi-channel standard meter is combined;
s4, performing overrun judgment on the indication error of each test result of each flow point in real time under the known early warning limit and control limit state;
for each road standard table, when the early warning limit is larger than the control limit, the control limit is used, and when the early warning limit is smaller than or equal to the control limit, the early warning limit is used;
and C2, judging overrun of the single-way standard table, and comparing the indication error-central line of the check table with the early warning limit and the control limit in each verification of each flow point in the case of using the single-way standard table:
When the checking error-center line is larger than UCL or the checking error-center line is smaller than LCL, the warning limit is exceeded,
When the checking error and the deviation of the central line are larger than the uncertainty of the standard table, prompting that the control limit is exceeded, and stopping using the standard table;
C3, judging overrun of the multi-path standard table, wherein each single-path standard table command D represents the half width of the early warning limit of a single-way standard table, the half width of the early warning limit of an ith standard table is di when the flow rate of the standard table is qi when a certain flow rate point is detected, and the combined n standard tables meet the requirement of checking error-central line < dn, wherein:;
When the error is checked and the central line is dn, prompting that the early warning limit is exceeded;
when the checking error-center line is greater than the uncertainty of the standard table, the control limit is exceeded.
Further, each standard table pipeline in the step S2 respectively establishes a control limit as the uncertainty of the standard table.
Further, each standard meter pipeline in S2 preliminarily sets a control limit to the uncertainty of the standard meter.
In summary, the beneficial technical effects of the invention are as follows:
1. The method for online checking the natural gas metering standard device is used for online real-time checking of the natural gas metering standard device, realizing quality control of the metering standard, ensuring accurate and reliable natural gas quantity value transmission and generating an accurate measurement and calculation effect;
2. according to the method for online checking of the natural gas metering standard device, a detection mode of the early warning limits of the multi-path standard meter is used, the early warning limit of each path is calculated according to the single-path standard meter according to the same caliber and flow range, and the measuring and calculating effects of the multi-path standard meter are generated;
3. According to the method for online checking of the natural gas metering standard device, the overrun judgment of the single-path standard table and the overrun judgment of the multi-path standard table are convenient to integrally calculate different overrun states according to different conditions, and the effect of conveniently calculating overrun is achieved.
Detailed Description
The method of the present invention is described in further detail below.
A method for online checking of a natural gas metering standard device comprises the following steps:
s1, calculating a central line, namely calculating the indication error and repeatability of a flow point to obtain the indication error of the flow point, calculating the central line of a standard table according to the obtained indication error to obtain the average value of a plurality of groups of indication errors, and setting the average value of the plurality of groups of indication errors as a central line value;
A1, calculating indication errors, namely calculating repeatability of the flow points according to the indication errors, wherein the indication errors of one flow point are average values of indication errors of each test (n times) corresponding to the flow point, and the repeatability of the flow point test results is a Bessel formula of the indication errors of each test (n times) corresponding to the flow point:
(1),
Wherein Er is the repeatability of a flow point verification result,
Ei is the error in the indication of the ith assay,
Average value of n times of verification results;
a2, calculating a central line, namely taking the indication error of each flow point in one verification as a basic unit for each standard table, and forming a subgroup by 10 basic unit data, wherein the average value of each subgroup Taking 10 subgroupsWhen the average value of the first 10 subgroups is the center line, after the standard table or the check table is recalibrated, the average value of the first 10 subgroups is taken as a new center line, and when the number of the subgroups is less than 10 and the condition of calculating the center line is not provided, the center line is taken as 0;
s2, setting control limits, namely respectively making the control limits of each standard meter pipeline, and setting preliminary set control limits of each standard meter pipeline, wherein each standard meter pipeline respectively makes the control limits as Initial setting of control limits for each standard meter pipeline is standard meter uncertainty of +/-0.29 percentControl limits are defined when the quality control program is applied to the analytical test, and in environmental monitoring, a range within which 99.7% of the total test results fall is generally defined as a quality control range, i.e., a control limit;
S3, calculating an early warning limit, namely checking the percentage, the flow points, the times, the pipeline combination and the indication error type parameters of the flow meter one by one, judging and selecting the data, and calculating the early warning limit according to the selected value;
The method comprises the steps of B1, judging and selecting data, wherein all data corresponding to one flow point are in a group, after each frequency, a standard table and a check table pipeline combination used for one-time verification are corresponding, 1 check table+n standard tables are adopted, the condition of only 1 check table+1 standard table is selected for carrying out early warning limit calculation, and the early warning limit of the corresponding standard table is obtained according to dynamic early warning calculation results in two flow intervals above and below the standard table demarcation flow;
b2, dynamic early warning calculation, namely dividing the standard meter into two sections according to the dividing flow, calculating the early warning limit by adopting an average value-standard deviation control chart, taking the indication error of each flow point as a basic unit for each standard meter, forming a subgroup by 10 basic unit data, and calculating the statistical control quantity of the average value of each subgroup when adopting the average value-standard deviation control chart Standard deviation s for each subgroup, average value of each subgroupAnd the average of the standard deviations of the subgroups;
B3, calculating control limits, namely calculating a Central Line (CL), an early warning upper limit (UCL), an early warning lower limit (LCL) and an average control diagram of each control diagramThe graph has a central line CL (fixed), an early warning upper limit UCL, and an early warning lower limit LCL, which are respectively CL=respectively;
UCL=+A3;
LCL=A3;
Order theD represents the half width of the early warning limit
Average value control diagram-S diagram, center line CL, upper control limit UCL, and lower control limit LCL, respectively: cl=respectively;
UCL=B5;
LCL=B6,
The values of A3, B5 and B6 are changed according to actual conditions, so specific values are not listed for display, and the values of the coefficients are displayed according to the formula;
B4, calculating the early warning limit of each path according to the single-path standard table because the caliber and the flow range are the same and the early warning limit of the multi-path standard table is calculated;
s4, performing overrun judgment on the indication error of each test result of each flow point in real time under the known early warning limit and control limit state;
The method comprises the steps of C1, selecting an early warning limit and a control limit, wherein the early warning limit is the early warning limit, the control limit is the control limit, the concept is unified, and for each road sign table, when the early warning limit is larger than the control limit, the control limit is used, and when the early warning limit is smaller than or equal to the control limit, the early warning limit is used;
and C2, judging overrun of the single-way standard table, and comparing the indication error-central line of the check table with the early warning limit and the control limit in each verification of each flow point in the case of using the single-way standard table:
when the checking error-center line > UCL or the checking error-center line < LCL, the warning limit is exceeded,
When the deviation between the checking error and the central line is larger than 0.23%, prompting that the control limit is exceeded, stopping using the standard mark table;
C3, judging overrun of the multi-path standard table, wherein each single-path standard table command D represents the half width of the early warning limit of a single-way standard table, the half width of the early warning limit of an ith standard table is di when the flow rate of the standard table is qi when a certain flow rate point is detected, and the combined n standard tables meet the requirement of checking error-central line < dn, wherein:;
When the error is checked and the central line is dn, prompting that the early warning limit is exceeded;
when the error in the verification and the deviation of the center line are larger than 0.23%, the control limit is exceeded.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered by the scope of the present invention.

Claims (3)

1.一种天然气计量标准装置在线核查的方法，其特征在于，其步骤如下：1. A method for online verification of a natural gas measurement standard device, characterized in that the steps are as follows: S1：中心线的计算：对一个流量点下的示值误差和重复性计算，获得流量点的示值误差，根据所得的示值误差对标准表中心线进行计算，获得多组示值误差的平均值，并将多组示值误差的平均值设置为中心线值；S1: Calculation of center line: Calculate the indication error and repeatability at a flow point to obtain the indication error of the flow point. Calculate the center line of the standard table based on the obtained indication error to obtain the average value of multiple groups of indication errors, and set the average value of multiple groups of indication errors as the center line value; A1：示值误差的计算：一个流量点的示值误差是该流量点对应的每次测试示值误差的平均值，这一示值误差是标准表与固定的核查表之间流量的示值误差，并根据示值误差计算流量点重复性，一个流量点测试结果的重复性该流量点对应的每次测试示值误差的贝塞尔公式：A1: Calculation of indication error: The indication error of a flow point is the average value of the indication error of each test corresponding to the flow point. This indication error is the indication error of the flow between the standard table and the fixed check table. The flow point repeatability is calculated based on the indication error. The repeatability of the test result of a flow point is the Bessel formula of the indication error of each test corresponding to the flow point: ； ; 式中：Er为一个流量点检定结果的重复性，Where: Er is the repeatability of the test result of a flow point, Ei为第i次检定的示值误差，Ei is the indication error of the ith calibration, 为n次检定结果的平均值； is the average value of n test results; A2：中心线的计算：对每一台标准表，一次检定中每个流量点的示值误差作为一个基本单元，10个基本单元数据构成一个子组，每个子组的平均值，取10个子组的平均值为中心线，当标准表或核查表重新校准后，重新取前10个子组的平均值为新的中心线，当子组数量＜10，不具备计算中心线条件时，取中心线为0；A2: Calculation of center line: For each standard meter, the indication error of each flow point in a calibration is taken as a basic unit, and 10 basic unit data constitute a subgroup. The average value of each subgroup is , take 10 subgroups The average value is the center line. When the standard table or check table is recalibrated, the average value of the first 10 subgroups is taken as the new center line. When the number of subgroups is less than 10 and the conditions for calculating the center line are not met, the center line is taken as 0. S2：设置控制限：将每个标准表管路分别制定控制限，并设置每个标准表管路初步设置控制限；S2: Set control limits: Set control limits for each standard meter pipeline separately, and set the control limits for each standard meter pipeline preliminarily; S3：预警限计算，对流量计的百分比、流量点、次数、管路组合和示值误差类型参数进行一对一核对，并对数据进行判别和选取，根据选取的数值对预警限进行计算；S3: Calculation of warning limit: one-to-one verification of the flow meter's percentage, flow point, number of times, pipeline combination and indication error type parameters, and identification and selection of data, and calculation of the warning limit based on the selected values; B1：数据判别和选取：一次检定使用的标准表和核查表管路组合，为1个核查表+n个标准表，选取只有1个核查表+1个标准表的情况进行预警限的计算，按照标准表分界流量以上和分界流量以下两个流量区间按照动态预警计算结果为相应标准表的预警限；B1: Data identification and selection: The combination of standard table and check table pipeline used in one calibration is 1 check table + n standard tables. The warning limit is calculated based on the case of only 1 check table + 1 standard table. The warning limit of the corresponding standard table is calculated based on the dynamic warning calculation result for the two flow intervals above and below the boundary flow of the standard table. B2：动态预警计算：标准表分界流量为最大流量的20％，按照分界流量分为两个区间，两个区间分别制定控制限，采用平均值—标准偏差控制图计算预警限，对每一台标准表，每个流量点的示值误差作为一个基本单元，10个基本单元数据构成一个子组，采用平均值—标准偏差控制图时，计算的统计控制量为：每个子组的平均值，每个子组的标准偏差s，各子组平均值和各子组标准偏差的平均；B2: Dynamic early warning calculation: The standard meter boundary flow is 20% of the maximum flow. It is divided into two intervals according to the boundary flow. The control limits are set for the two intervals respectively. The early warning limit is calculated using the mean value-standard deviation control chart. For each standard meter, the indication error of each flow point is taken as a basic unit. 10 basic unit data constitute a subgroup. When the mean value-standard deviation control chart is used, the calculated statistical control quantity is: the average value of each subgroup , the standard deviation s of each subgroup, the mean value of each subgroup and the average of the standard deviations of the subgroups ; B3：控制界限的计算：计算每个控制图的中心线(CL)，预警上限(UCL)，预警下限(LCL)，平均值控制图-图，其中心线CL、预警上限UCL，和预警下限LCL，分别为：CL=；B3: Calculation of control limits: Calculate the center line (CL), upper warning limit (UCL), lower warning limit (LCL) and mean value control chart of each control chart. The center line CL, the upper warning limit UCL, and the lower warning limit LCL are: CL= ; UCL=+A3；UCL= +A3 ; LCL=A3；LCL= A3 ; 令，d表示预警限半宽度；make , d represents the half width of the warning limit; 平均值控制图-S图，其中心线CL、控制上限UCL，和控制下限LCL，分别为：CL=；Mean value control chart - S chart, the center line CL, upper control limit UCL, and lower control limit LCL are: CL = ; UCL=B5；UCL=B5 ; LCL=B6；LCL=B6 ; B4：多路标准表预警限：涉及多路标准表预警限计算，因其口径、流量范围相同，按照单路标准表计算每一路的预警限，多路标准表合并使用时多路预警限是使用多个单路预警限的合成计算；B4: Warning limit of multiple standard tables: involves the calculation of warning limits of multiple standard tables. Because they have the same caliber and flow range, the warning limit of each channel is calculated according to the single-channel standard table. When multiple standard tables are used together, the multi-channel warning limit is calculated by combining multiple single-channel warning limits. S4：超限判断，在已知预警限与控制限状态下，对实时检定时的每个流量点每次测试结果的示值误差进行超限判断；S4: Over-limit judgment: Under the known warning limit and control limit, the indication error of each test result at each flow point during real-time calibration is judged as over-limit; C1：预警限和控制限的选用：对每路标准表而言，当预警限大于控制限时，使用控制限，当预警限小于等于控制限时，使用预警限；C1: Selection of warning limit and control limit: For each standard table, when the warning limit is greater than the control limit, use the control limit; when the warning limit is less than or equal to the control limit, use the warning limit; C2：单路标准表超限判断，对使用单路标准表的情况而言，将每个流量点每次检定时核查表的示值误差-中心线与预警限和控制限比较：C2: Judgment of over-limit of single-channel standard table. For the case of using a single-channel standard table, compare the indication error-center line of the table with the warning limit and control limit at each flow point during each calibration: 当核查误差-中心线大于UCL或核查误差-中心线小于LCL时，提示超出预警限，When the verification error-center line is greater than UCL or the verification error-center line is less than LCL, it indicates that the warning limit is exceeded. 当核查误差和中心线的偏差大于标准表不确定度时，提示超出控制限，则停止使用该路标准表；When the deviation between the verification error and the center line is greater than the uncertainty of the standard table, it is indicated that the control limit is exceeded, and the use of the standard table should be stopped; C3：多路标准表超限判断，每一个单路标准表令 ，d表示单路标准表的预警限半宽度，n路标准表组合检定流量计时，第i路标准表的预警限半宽为di，检定某一流量点时该标准表流量为qi，则n路标准表组合后应当满足核查误差-中心线<dn ，其中：；C3: Multi-channel standard table over-limit judgment, each single channel standard table command , d represents the half width of the warning limit of a single standard meter. When n standard meters are combined to calibrate the flowmeter, the half width of the warning limit of the i-th standard meter is di. When calibrating a certain flow point, the flow rate of the standard meter is qi. Then the combination of n standard meters should meet the verification error-center line <dn, where: ; 当|核查误差-中心线|>dn ，提示超出预警限；When |Verification error-center line|>dn, it indicates that the warning limit is exceeded; 当核查误差-中心线大于标准表不确定度的，提示超出控制限。When the verification error-center line is greater than the uncertainty of the standard table, it indicates that the control limit is exceeded. 2.根据权利要求1所述的一种天然气计量标准装置在线核查的方法，其特征在于：所述S2每个标准表管路分别制定控制限为标准表不确定度。2. A method for online verification of a natural gas measurement standard device according to claim 1, characterized in that: each standard meter pipeline in S2 is respectively set with a control limit as the standard meter uncertainty. 3.根据权利要求1所述的一种天然气计量标准装置在线核查的方法，其特征在于：所述S2中每个标准表管路初步设置控制限为标准表不确定度。3. A method for online verification of a natural gas measurement standard device according to claim 1, characterized in that: the control limit of each standard meter pipeline in S2 is initially set to the standard meter uncertainty.
CN202210586623.6A 2022-05-26 2022-05-26 A method for online verification of natural gas measurement standard device Active CN114942060B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114964427A (en) * 2022-05-26 2022-08-30 国家石油天然气管网集团有限公司华南分公司 A Coriolis mass flowmeter on-site detection system and detection method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU548537B2 (en) * 1980-03-28 1985-12-19 M&Fc Holding Company, Inc. Measuring volume of cavity
US6205409B1 (en) * 1998-06-26 2001-03-20 Advanced Micro Devices, Inc. Predictive failure monitoring system for a mass flow controller
KR100436972B1 (en) * 2002-04-18 2004-06-30 자인테크놀로지(주) Vapor flow measuring device for standardizing flow meter
KR20070056092A (en) * 2004-08-13 2007-05-31 엔테그리스, 아이엔씨. Calibration system and method of flow meter
CN101246035A (en) * 2008-03-17 2008-08-20 成都康斯博科技有限责任公司 Portable natural gas flow measuring and checking system
CN204064406U (en) * 2014-06-30 2014-12-31 东华理工大学 A kind of high-speed gas flow calibration system based on laboratory multiple-way duct
CN104061984B (en) * 2014-06-30 2017-07-07 东华理工大学 A kind of high-speed gas flow calibration system and calibration method based on laboratory multiple-way duct
DE102014016820A1 (en) * 2014-11-14 2016-05-19 Abb Technology Ag Method for operating a flow meter
CN104634423B (en) * 2015-02-09 2017-11-28 西安朗威科技有限公司 The method of water injection well in oil fields high-pressure flowmeter on-line proving
US10921174B2 (en) * 2017-05-25 2021-02-16 Endress+Hauser Group Services Ag Hydrocarbon transfer standard certified to provide in situ calibration of measuring devices
CN209197859U (en) * 2018-09-18 2019-08-02 中国石油天然气股份有限公司 Calibration equipment of natural gas flowmeter
CN110118589B (en) * 2019-03-27 2021-08-13 佛燃能源集团股份有限公司 Device and method for calibrating metering device
CN112556798B (en) * 2019-09-26 2024-01-26 深圳电蚂蚁数据技术有限公司 Flow measurement system and error verification method convenient for error verification
CN213842325U (en) * 2020-12-08 2021-07-30 呼和浩特中燃城市燃气发展有限公司 Natural gas testing and verification integrated system
CN114427902B (en) * 2021-12-30 2024-03-26 广东旭诚科技有限公司 Flow automatic checking device based on Internet of things and steady-state curve algorithm and application thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114964427A (en) * 2022-05-26 2022-08-30 国家石油天然气管网集团有限公司华南分公司 A Coriolis mass flowmeter on-site detection system and detection method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
天然气流量计检定过程智能化质量控制技术实践;吴岩 等;《油气储运》;20210625;第40卷(第6期);第637-642页 *
流量核查技术在天然气流量计检定中的应用;国明昌 等;《计量技术》;20190318(第3期);第42-46页 *

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