CN103712669A - Flow gauge online calibration device - Google Patents

Flow gauge online calibration device Download PDF

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Publication number
CN103712669A
CN103712669A CN201410018873.5A CN201410018873A CN103712669A CN 103712669 A CN103712669 A CN 103712669A CN 201410018873 A CN201410018873 A CN 201410018873A CN 103712669 A CN103712669 A CN 103712669A
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module
calibration device
online calibration
flowmeter
detection module
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CN201410018873.5A
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李伟
叶勇
任云
申刚
阳初春
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Naval Aeronautical University
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Naval Aeronautical University
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Abstract

The invention relates to a flow gauge online calibration device and belongs to the technical field of calibration device structures. The flow gauge online calibration device comprises a detection module, a collection module and an analysis module, wherein the detection module is used for detecting the state parameter of liquid inside a liquid mechanical output pipeline, the collection module is used for collecting the liquid mechanical output data, the analysis module is used for calculating the flow rate deviation between the detection module and the collection module, and the output end of the analysis module is connected with a display. The flow gauge online calibration device is reasonable in structure design, convenient to operate, capable of realizing online real-time calibration, and high in calibration precision.

Description

一种流量计在线校准装置A flowmeter online calibration device

技术领域 technical field

本发明涉及一种流量计在线校准装置,属于校准装置结构技术领域。 The invention relates to an online calibration device for a flowmeter, belonging to the technical field of calibration device structures.

背景技术 Background technique

有流量计量要求的流体机械,所安装流量计按照国家标准应定期检定,但拆卸送检的方式影响设备正常使用,且周期较长,急需能够现场开展在线校准的装置、手段。 For fluid machinery with flow measurement requirements, the installed flowmeter should be regularly calibrated according to national standards, but the way of disassembly and inspection affects the normal use of the equipment, and the cycle is long, so there is an urgent need for devices and means that can carry out on-line calibration on site.

发明内容 Contents of the invention

本发明的目的在于解决上述现有技术存在的不足之处,提供一种结构设计合理,操作方便,能够实现在线实时校准,校准精度高的流量计在线校准装置。 The purpose of the present invention is to solve the shortcomings of the above-mentioned prior art, and provide a flowmeter online calibration device with reasonable structure design, convenient operation, real-time online calibration, and high calibration accuracy.

本发明是通过以下技术方案来实现的:                                The present invention is achieved through the following technical solutions:

一种流量计在线校准装置,其特殊之处在于包括用于检测流体机械1输出管路内液体状态参数的检测模块、用于采集流体机械1输出数据的采集模块5、用于计算检测模块与采集模块5流量偏差的分析模块6,分析模块6的输出端与显示器3相连接; A flowmeter online calibration device, which is special in that it includes a detection module for detecting the liquid state parameters in the output pipeline of the fluid machine 1, an acquisition module 5 for collecting the output data of the fluid machine 1, and a detection module for calculating and The analysis module 6 of the flow deviation of the collection module 5, the output end of the analysis module 6 is connected with the display 3;

所述检测模块与分析模块6之间设有用于传输数据的数据传输模块4; A data transmission module 4 for transmitting data is provided between the detection module and the analysis module 6;

所述采集模块5与分析模块6之间设有数据转换模块7; A data conversion module 7 is arranged between the acquisition module 5 and the analysis module 6;

所述检测模块包括设于流体机械输出管路2上的压力传感器8、流量传感器9、温度传感器10;     The detection module includes a pressure sensor 8, a flow sensor 9, and a temperature sensor 10 arranged on the fluid mechanical output pipeline 2;

所述流量传感器9包括与管路2相连通的流量计,流量计连接有用于将脉冲信号转换成电流信号的变送器;                  The flow sensor 9 includes a flow meter connected to the pipeline 2, and the flow meter is connected with a transmitter for converting the pulse signal into a current signal;

所述流量计在线校准装置安装于箱体内,显示器3水平安装于箱体的上表面上; The flowmeter online calibration device is installed in the box, and the display 3 is horizontally installed on the upper surface of the box;

所述箱体的内壁上安装有减震装置; A shock absorbing device is installed on the inner wall of the box;

所述采集模块5包括用于拍摄流体机械1测量仪表的采集摄像头,采集摄像头通过数据传输线与数据转换模块7相连接。   The collection module 5 includes a collection camera for photographing the measuring instrument of the fluid machine 1 , and the collection camera is connected with the data conversion module 7 through a data transmission line. the

本发明的流量计在线校准装置结构设计合理,通过检测模块采集流体机械输出端处的液体流量、压力与温度信息由数据传输模块传送到分析模块,同时,采集模块还同步采集流体机械测量仪表指示的流量、压力与温度信息,然后送到分析模块进行分析处理,计算机在进行示值判读、流量补偿等运算后,评价流量的计量精度,给出结论;综上所述,本发明能够实现在线实流校准,可方便的串接在流体机械工作回路中,在流体机械的实际工作条件下进行校准,校准精度高,避免了计量装置的拆卸,具有非侵入式获取被校准数据的能力,该装置通过图像获取和处理得到流体机械的计量数据,不改变流体机械的任何工作状态,不影响流体机械的正常工作。 The structure design of the flowmeter online calibration device of the present invention is reasonable, and the liquid flow, pressure and temperature information at the output end of the fluid machinery is collected through the detection module and transmitted to the analysis module by the data transmission module. The flow, pressure and temperature information are then sent to the analysis module for analysis and processing. The computer evaluates the measurement accuracy of the flow after performing calculations such as indication value interpretation and flow compensation, and gives a conclusion; in summary, the present invention can realize online Real-flow calibration can be conveniently connected in series in the working circuit of fluid machinery, and can be calibrated under the actual working conditions of fluid machinery. It has high calibration accuracy, avoids the disassembly of metering devices, and has the ability to obtain calibrated data non-invasively. The device obtains the metering data of the fluid machinery through image acquisition and processing, without changing any working state of the fluid machinery, and without affecting the normal operation of the fluid machinery.

附图说明 Description of drawings

图1:本发明一种流量计在线校准装置的结构示意图。 Figure 1: Schematic diagram of the structure of a flowmeter online calibration device of the present invention.

具体实施方式 Detailed ways

以下参考附图给出本发明的具体实施方式,用来对本发明做进一步的说明。 The specific embodiments of the present invention are given below with reference to the accompanying drawings, which are used to further describe the present invention.

实施例1 Example 1

本实施例的一种流量计在线校准装置,包括用于检测流体机械1输出管路内液体状态参数的检测模块、用于采集流体机械1输出数据的采集模块5、用于计算检测模块与采集模块5流量偏差的分析模块6,分析模块6的输出端与显示器3相连接;检测模块与分析模块6之间设有用于传输数据的数据传输模块4;采集模块5与分析模块6之间设有数据转换模块7;所述检测模块包括设于流体机械输出管路2上的压力传感器8、流量传感器9、温度传感器10,流量传感器9包括与管路2相连通的流量计,流量计连接有用于将脉冲信号转换成电流信号的变送器。管路2的输出端与储液箱11相连通;流量计在线校准装置安装于箱体内,显示器3水平安装于箱体的上表面上;箱体的内壁上安装有减震装置;采集模块5包括用于拍摄流体机械1测量仪表的采集摄像头,采集摄像头通过数据传输线与数据转换模块7相连接。   An online flowmeter calibration device in this embodiment includes a detection module for detecting the liquid state parameters in the output pipeline of the fluid machine 1, an acquisition module 5 for collecting the output data of the fluid machine 1, and a detection module for calculating and collecting The analysis module 6 of module 5 flow deviations, the output end of analysis module 6 is connected with display 3; Be provided with the data transmission module 4 that is used to transmit data between detection module and analysis module 6; Set up between acquisition module 5 and analysis module 6 There is a data conversion module 7; the detection module includes a pressure sensor 8, a flow sensor 9, and a temperature sensor 10 arranged on the output pipeline 2 of the fluid machine, and the flow sensor 9 includes a flowmeter connected to the pipeline 2, and the flowmeter is connected to There are transmitters for converting pulse signals into current signals. The output end of the pipeline 2 is connected with the liquid storage tank 11; the flowmeter online calibration device is installed in the box, and the display 3 is installed horizontally on the upper surface of the box; a shock absorbing device is installed on the inner wall of the box; the acquisition module 5 It includes a collection camera for photographing the measuring instrument of the fluid machine 1, and the collection camera is connected with the data conversion module 7 through a data transmission line. the

工作过程如下:检测模块采集流体机械输出端处的液体流量、压力与温度信息由数据传输模块4传送到分析模块6,同时,采集模块5还同步采集流体机械1测量仪表指示的流量、压力与温度信息,然后送到分析模块6进行分析处理,计算机在进行示值判读、流量补偿等运算后,评价流量的计量精度,给出结论。 The working process is as follows: the detection module collects the liquid flow, pressure and temperature information at the output end of the fluid machine and is transmitted from the data transmission module 4 to the analysis module 6. At the same time, the acquisition module 5 also synchronously collects the flow rate, pressure and temperature indicated by the measuring instrument of the fluid machine 1. The temperature information is then sent to the analysis module 6 for analysis and processing, and the computer evaluates the measurement accuracy of the flow rate and gives a conclusion after performing calculations such as indication value interpretation and flow compensation.

本实施例的流量计在线校准装置具有以下优点: The flowmeter online calibration device of this embodiment has the following advantages:

1)具有便携式结构,机动灵活,便于携行和运输,设计了减震结构,对现场条件适应性强; 1) It has a portable structure, is flexible, easy to carry and transport, and is designed with a shock-absorbing structure, which is highly adaptable to site conditions;

2)能够实现在线实流校准,该装置可方便的串接在被校准工作回路中,在流体机械的实际工作条件下进行校准,校准精度高,避免了计量装置的拆卸; 2) It can realize online real-flow calibration. The device can be conveniently connected in series in the calibrated working circuit, and can be calibrated under the actual working conditions of fluid machinery. The calibration accuracy is high, and the disassembly of the metering device is avoided;

3)具有非侵入式获取被校准数据的能力,该装置通过图像获取和处理得到流体机械的计量数据,不改变流体机械的任何工作状态,不影响流体机械的正常工作; 3) It has the ability to obtain the calibrated data non-invasively. The device obtains the measurement data of the fluid machinery through image acquisition and processing, without changing any working status of the fluid machinery, and without affecting the normal operation of the fluid machinery;

4)具备温度、压力对流量影响的自动修正能力,该装置通过软件设计,建立了温度和压力对流量计量精度影响的修正模型,可自动进行修正,避免与流体机械出现由温度或压力造成的偏差。 4) It has the ability to automatically correct the influence of temperature and pressure on the flow rate. Through software design, the device has established a correction model for the influence of temperature and pressure on the flow measurement accuracy, which can be automatically corrected to avoid temperature or pressure caused by fluid machinery. deviation.

Claims (8)

1.一种流量计在线校准装置,其特征在于包括用于检测流体机械(1)输出管路内液体状态参数的检测模块、用于采集流体机械(1)输出数据的采集模块(5)、用于计算检测模块与采集模块(5)流量偏差的分析模块(6),分析模块(6)的输出端与显示器(3)相连接。 1. A flowmeter online calibration device, characterized in that it includes a detection module for detecting the liquid state parameters in the output pipeline of the fluid machine (1), an acquisition module (5) for collecting the output data of the fluid machine (1), The analysis module (6) is used to calculate the flow deviation between the detection module and the acquisition module (5), and the output terminal of the analysis module (6) is connected to the display (3). 2.按照权利要求1所述的一种流量计在线校准装置,其特征在于所述检测模块与分析模块(6)之间设有用于传输数据的数据传输模块(4)。 2. The flowmeter online calibration device according to claim 1, characterized in that a data transmission module (4) for transmitting data is provided between the detection module and the analysis module (6). 3.按照权利要求1所述的一种流量计在线校准装置,其特征在于所述采集模块(5)与分析模块(6)之间设有数据转换模块(7)。 3. The flowmeter online calibration device according to claim 1, characterized in that a data conversion module (7) is provided between the acquisition module (5) and the analysis module (6). 4.按照权利要求2所述的一种流量计在线校准装置,其特征在于所述检测模块包括设于流体机械输出管路(2)上的压力传感器(8)、流量传感器(9)、温度传感器(10)。 4. A flowmeter online calibration device according to claim 2, characterized in that the detection module includes a pressure sensor (8), a flow sensor (9), a temperature sensor (10). 5. 按照权利要求4所述的一种流量计在线校准装置,其特征在于所述流量传感器(9)包括与管路(2)相连通的流量计,流量计连接有用于将脉冲信号转换成电流信号的变送器。 5. A flowmeter online calibration device according to claim 4, characterized in that the flow sensor (9) includes a flowmeter connected to the pipeline (2), and the flowmeter is connected with a device for converting the pulse signal into Transmitters for current signals. 6. 按照权利要求1所述的一种流量计在线校准装置,其特征在于所述流量计在线校准装置安装于箱体内,显示器(3)水平安装于箱体的上表面上。 6. A flowmeter online calibration device according to claim 1, characterized in that the flowmeter online calibration device is installed in the box, and the display (3) is installed horizontally on the upper surface of the box. 7.按照权利要求6所述的一种流量计在线校准装置,其特征在于所述箱体的内壁上安装有减震装置。 7. A flowmeter online calibration device according to claim 6, characterized in that a shock absorbing device is installed on the inner wall of the box. 8.按照权利要求1所述的一种流量计在线校准装置,其特征在于所述采集模块(5)包括用于拍摄流体机械(1)测量仪表的采集摄像头,采集摄像头通过数据传输线与数据转换模块(7)相连接。 8. A flowmeter online calibration device according to claim 1, characterized in that the acquisition module (5) includes an acquisition camera for photographing the measuring instrument of the fluid machine (1), and the acquisition camera converts the data through the data transmission line modules (7) are connected.
CN201410018873.5A 2014-01-16 2014-01-16 Flow gauge online calibration device Pending CN103712669A (en)

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CN107731720A (en) * 2017-11-29 2018-02-23 沈阳拓荆科技有限公司 The fluid flow calibration system and calibration method of a kind of semiconductor processing equipment
CN108241346A (en) * 2017-12-05 2018-07-03 北京智拓博科技有限公司 Fluid machinery intelligent monitor system and its method
CN108430281A (en) * 2015-10-20 2018-08-21 沙克忍者运营有限责任公司 Dynamic Calibration Compensation for Flow Meters
CN113108879A (en) * 2021-04-29 2021-07-13 青岛市计量技术研究院 Gas flowmeter for measuring remote calibration of circular-section pipeline and calibration method
CN114061708A (en) * 2021-11-01 2022-02-18 湖州市检验检测中心 High-precision automatic control liquid flowmeter (instrument) on-line calibration device
CN114659594A (en) * 2022-03-21 2022-06-24 江苏红光仪表厂有限公司 Active Calibration Systems for Flow Meters
CN118362175A (en) * 2024-06-20 2024-07-19 福建哈德仪表有限公司 Gas ultrasonic flowmeter with calibration function

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CN108430281A (en) * 2015-10-20 2018-08-21 沙克忍者运营有限责任公司 Dynamic Calibration Compensation for Flow Meters
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CN114659594A (en) * 2022-03-21 2022-06-24 江苏红光仪表厂有限公司 Active Calibration Systems for Flow Meters
CN114659594B (en) * 2022-03-21 2024-08-09 江苏红光仪表厂有限公司 Active calibration system for flow meters
CN118362175A (en) * 2024-06-20 2024-07-19 福建哈德仪表有限公司 Gas ultrasonic flowmeter with calibration function
CN118362175B (en) * 2024-06-20 2024-10-11 福建哈德仪表有限公司 Gas ultrasonic flowmeter with calibration function

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