Anti blockage probe flowmeter a pitot tube, a sequence of connected S type pitot tube, tube, differential pressure transmitter and flow totalizer, S type pitot tube has shaped shell, cylindrical shell is parallel connected to the two of the same diameter pipe, one of the root canal is full the pressure tube, another tube is static tube, the lower the total pressure tube radial total pressure hole, the radial static pressure hole axis static tube axis and lower total pressure hole in the same line, in the opposite direction, the upper end of the pressure tube and the static pressure pipe are respectively connected with the upper end of the valve interface. The pressure tube and the static pressure pipe are respectively connected with the dredging port ball valve. The utility model of the total pressure tube and the static pressure pipe is respectively connected with the dredging port valve, when the pore pressure and static pressure holes are solid impurities are blocked, can pass into the compressed gas or inserting slender rod from the dredging port, can easily remove impurities of static pressure and total pressure hole in the hole of the utility suitable for use in fluid containing solid impurities.
【技术实现步骤摘要】
本技术涉及一种皮托管探针式流量计,特别是一种皮托管探针式流量计的检测头皮托管。
技术介绍
皮托管流量计用于测量管道内的气体或液体等流体的流量。皮托管流量计有顺序相连的检测头皮托管、导压管、差压变送器和流量积算仪。皮托管有S型皮托管,S型皮托管有平行相连的二根直径相同的直管,其中的一根管是全压管,另一根管是静压管,全压管的下端有径向管口是全压孔,静压管的下端有轴线与全压孔的轴线在同一直线、方向相反的径向管口是静压孔,全压管和静压管的上端分别有连有阀门的接口。使用时,皮托管沿被测管道的径向插入管道中,把皮托管定位地安装在管道壁上,让皮托管的全压孔和静压孔轴线处于被测管道的中心线,全压孔正面对着来流方向,用于测取全压,静压孔背对着来流方向,用于测取静压,流体在管道流动时,皮托管测取的全压和静压经导压管传递给差压变送器,差压变送器把全压和静压的压差转换成相应的Γ20πιΑ标准电流信号,标准电流信号传给流量积算仪,在流量积算仪内对标准电流信号进行数据处理和结果显示。S型皮托管的全压管和静压管是直管,皮托管是直管的皮托管流量计称作探针式流量计。现有技术中,S型皮托管探针式流量计的皮托管全压管和静压管的上端只有连有阀门的接口。在被测流体中,有些流体中含有固体杂质,皮托管探针式流量计使用上述S型皮托管时,容易发生固体杂质堵塞全压孔和静压孔的现象,全压孔和静压孔被杂质堵塞后, 极大地影响流体流量的测量,为了清除堵塞在全压孔和静压孔内的杂质,要把上述S型皮托管从被测管壁上取下来,清除堵塞在全压孔和静压孔内的杂质后,再把S型皮托管定位地安装在管道壁上,上述现有技术中的S型皮托 ...
【技术保护点】
1.一种皮托管防堵型探针式流量计,有顺序相连的S型皮托管、导压管、差压变送器和流量积算仪,S型皮托管有圆管形壳体,圆管形壳体内有平行相连的二根直径相同的直管,其中的一根管是全压管,另一根管是静压管,全压管的下端有径向全压孔,静压管的下端有轴线与全压孔的轴线在同一直线、方向相反的径向静压孔,全压管和静压管的上端分别有连有阀门的接口,其特征在于:全压管和静压管的上端分别有连有球阀的疏通口。
【技术特征摘要】
【专利技术属性】
技术研发人员:梁士革,
申请(专利权)人:铁岭市鑫光明科技有限公司,
类型:实用新型
国别省市:21
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