摘要
为了构建模拟抗(耐)震压力表真实工况的校准环境,按照SY/T 6817—2010《抗(耐)震压力表校准方法》设计制作了校准装置。首先,在被检表量程的30%~40%之间确定一个检验点,采取气驱液预压泵产生检验点基准压力;然后,利用杠杆梁变幅机构带动液压缸活塞往复运动来产生正弦波脉动,脉动范围限定在基准压力值和高压值之间,实现10%的正弦波脉动幅度,脉动频率为(60±5)次/min;最后,将液压管路引到综合振动台并连接到被检表活接头上,对被检表进行液压脉动和电磁振动试验。设计和试验结果表明:研制的校准系统具有脉动频率和幅度设定方便,输出稳定的正弦波脉动波形,整体控制精度优于0.1%,符合校准方法要求。系统通过工控机采集卡自动控制,控制精度高,显示屏显示界面明晰,操作方便,适合于试验室、检定室校准抗(耐)震压力表使用。
In order to build a calibration environment for simulating the real industrial and mining of anti⁃vibration pressure gauges,a calibration device was designed and manufactured according to SY/T 6817—2010“Calibration Methods for Anti⁃Vibration Pressure Gauges”.Firstly,an inspection point is determined between 30%and 40%of the range of the meter to be inspected,and the reference pressure of the inspection point is generated by a gas⁃driven liquid preloading pump.Then,the lever beam luffing mechanism is used to drive the piston of the hydraulic cylinder to reciprocate to generate sine wave pulsation,and the pulsation range is limited between the reference pressure value and the high pressure value to realize 10%sine wave pulsation amplitude,and the pulsation frequency is(60±5)times/min.Finally,the hydraulic pipeline is led to the comprehensive vibration table and connected to the movable joint of the tested meter,and the hydraulic pulsation and electromagnetic vibration tests are carried out on the tested meter.The design and test results show that the developed calibration system has the advantages of convenient pulse frequency and amplitude setting,stable sine wave pulse waveform output,and the overall control accuracy is better than 0.1%,which meets the requirements of calibration methods.The system is automatically controlled by the industrial computer acquisition card, with high control precision, clear displayinterface and convenient operation. It is suitable for calibrating anti⁃vibration pressure gauges in laboratories andverification rooms.
作者
刘开绪
刘卓群
李博
董鹏
王传英
高玉凯
LIU Kai-xu;LIU Zhuo-qun;LI Bo;DONG Peng;WANG Chuan-ying;GAO Yu-kai(Department of Electricity&Information Engineering,Daqing Normal University,Daqing,Heilongjiang 163712;School of Electrical Engineering,Northeast Electric Power University,Jilin,Jilin 132012;Daqing Oilfield Technical Supervision Center,Daqing,Heilongjiang 163712)
出处
《液压与气动》
北大核心
2024年第5期86-92,共7页
Chinese Hydraulics & Pneumatics
基金
黑龙江省自然科学基金(LH2023F036)。
关键词
耐震压力表
校准
脉动压力源
anti⁃vibration pressure gauges
calibration
pulsating pressure source
