發(fā)布時(shí)間：2018-09-07 09:04

【摘要】：標(biāo)準(zhǔn)表法氣體流量標(biāo)準(zhǔn)裝置為量值傳遞標(biāo)準(zhǔn),在流量儀表以及流量計(jì)量方法研究中發(fā)揮著重要作用。隨著研究的不斷深入,對流量標(biāo)準(zhǔn)裝置的性能提出了更高的要求。本文以天津大學(xué)流量實(shí)驗(yàn)室大口徑常壓氣體流量標(biāo)準(zhǔn)裝置為研究對象,著眼于裝置流量范圍、精度以及控制系統(tǒng)的可靠性,提出裝置改造方案,重點(diǎn)研究了裝置的控制系統(tǒng)的軟硬件設(shè)計(jì)方案以及方案的實(shí)現(xiàn)。根據(jù)檢定規(guī)程對裝置的性能指標(biāo)進(jìn)行了理論分析和實(shí)驗(yàn)驗(yàn)證。氣體流量標(biāo)準(zhǔn)裝置建設(shè)目的是為了進(jìn)行流量儀表測試。根據(jù)檢定規(guī)程,在實(shí)驗(yàn)裝置上進(jìn)行了標(biāo)準(zhǔn)孔板流量計(jì)、熱式質(zhì)量流量計(jì)和超聲流量計(jì)的檢定。標(biāo)準(zhǔn)孔板流量計(jì)主要是對裝置的精度進(jìn)行測試。熱式質(zhì)量流量計(jì)和超聲流量計(jì)的檢定主要是對裝置的整體運(yùn)行情況進(jìn)行系統(tǒng)的測試。本文的工作,提高了裝置的精度,增強(qiáng)了控制系統(tǒng)的可靠性和可操作性,為同類裝置的建設(shè)提供了經(jīng)驗(yàn)和思路,并對裝置的發(fā)展提出了展望。
[Abstract]:The standard meter gas flow standard device is the standard of value transfer, which plays an important role in the research of flow meter and flow measurement method. With the development of the research, the performance of the flow standard device is required higher. This paper takes the large caliber atmospheric pressure gas flow standard device of Tianjin University flow Laboratory as the research object, focusing on the device flow range, precision and the reliability of the control system, and puts forward the reconstruction scheme of the device. The hardware and software design and the realization of the control system are studied. According to the verification regulation, the performance index of the device is theoretically analyzed and verified by experiment. The purpose of the gas flow standard device is to test the flow meter. According to the verification regulation, the standard orifice plate Flowmeter, thermal mass Flowmeter and ultrasonic Flowmeter are calibrated on the experimental device. The standard orifice plate Flowmeter is mainly used to test the accuracy of the device. The verification of thermal mass Flowmeter and ultrasonic Flowmeter is mainly to test the whole operation of the device. The work of this paper improves the precision of the device, enhances the reliability and maneuverability of the control system, provides experience and ideas for the construction of the same kind of device, and puts forward the prospect for the development of the device.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TH814;TP273

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本文編號：2227813