A static pressure tube body flowmeter is divided into the feeding tube and the observation cylinder. The feeding tube is inserted in the feeding tube, and a steady flow pipe is connected to the outlet of the feeding pipe. The cone of the feeding barrel is provided with a baffle, and the bottom of the feeding barrel is provided with a flow guide tube. The observation tube can also be connected through the throttling orifice or the throttling tube and the feeding cylinder, and the two form a connecting device, which makes the liquid level in the observation tube stable, and the fluctuation range is very small, which improves the measurement accuracy. A small number of small holes are evenly distributed on the wall of the steady flow tube, which greatly reduces the flow rate at the outlet of the steady flow tube, and reduces the turbulence degree of the inlet cylinder, avoiding the excessive fluctuation of the liquid level. A baffle is provided at a certain distance at the outlet of the current pipe to ensure the flow of the tube flowmeter in a static pressure mode. For the range of different flow measurement, the guide tube of different length can be selected. The utility model is suitable for measuring the flow rate of the suspended liquid, including the coal mud water in the coal preparation plant, and can also be applied to the determination of water flow.
【技术实现步骤摘要】
静压式筒体流量计
本技术涉及一种测量煤泥水的流量计,具体的说是一种静压式筒体流量计,此流量计可测量包括煤泥水在内的悬浮液的流量,也可以测量清水的流量。
技术介绍
煤泥水流量测量是湿法选煤厂必不可少的环节,特别是浮选入料与浓缩机入料煤泥水的测量,其必要性在于:澄清浓缩设备入料量的大小直接关系到絮凝剂(或凝聚剂)的添加量,合适的添加量不仅能保证煤泥水深度澄清和洗水闭路循环,还能节约水资源,杜绝工业废水污染环境。浮选入料流量的大小是浮选机的调试操作重要影响因素,也决定了浮选剂的添加量,一定的入料量对应一定的浮选剂量,浮选剂量的过大或者过小会造成浮选精煤质量不合格或者产率降低,合适的浮选剂添加量才能保证浮选精煤的产率和质量以及煤炭资源的充分利用,从而提高选煤厂的整体经济效益。因此煤泥水流量的测量对选煤厂的生产技术管理异常重要。目前常见的能用于测量煤泥水的流量计为电磁流量计与超声波流量计。1)电磁流量计是利用法拉第电磁感应定律制成的一种测量液体流量的仪表,其原理是:液体在垂直于磁场的非磁性测量管内流动,切割磁力线产生与流量成比例的感应电动势,传送到转换器转换成电流信号,在经过显示屏输出为流量值。电磁流量计的缺点:a.流量计的感应电势转换成的电流信号微弱,仅为微安级别(0-10μA),极易受到生产场地所用的电动机、电缆线形成的感应磁场干扰,造成测量偏差;b.零点易漂移,不易矫正、调节;c.流量计的测量管内水垢或管壁磨损改变内径尺寸,造成测量偏差。超声波流量计是利用超声波可以穿透物体的特性,在流体管道外设置超声波发送装置,测量管内流体流速,从而测出流量。其工作的场所不得 ...
【技术保护点】
一种静压式筒体流量计,分为入料筒和观测筒两部分,其特征在于,a.所述的观测筒上带有节流孔,观测筒通过节流孔与入料筒连通,观测筒与入料筒两者形成连通器;b.所述的入料筒内插有入料管,在入料管的底口连接有稳流管,稳流管的管壁上均匀分布有多个小圆孔;煤泥水经入料管、稳流管进入入料筒,又经导流管流出;c.所述流量计的入料筒底部设有导流管,导流管的长度与其内径的比值为0~4;d.所述入料筒锥部设有挡板。
【技术特征摘要】
1.一种静压式筒体流量计,分为入料筒和观测筒两部分,其特征在于,a.所述的观测筒上带有节流孔,观测筒通过节流孔与入料筒连通,观测筒与入料筒两者形成连通器;b.所述的入料筒内插有入料管,在入料管的底口连接有稳流管,稳流管的管壁上均匀分布有多个小圆孔;煤泥水经入料管、稳流管进入入料筒,又经导流管流出;c.所述流量计的入料筒底部设有导流管,导流管的长度与其内径的比值为0~4;d.所述入料筒锥部设有挡板。2.根据权利要求1所述的静压式筒体流量计,其特征在于,所述的入料筒为圆柱-圆锥型结构。3.根据权利要求1所述的静压式筒体流量计,其特征在于,在入...
【专利技术属性】
技术研发人员:吴大为,苏壮飞,任利勤,郭建伟,吴朝荡,张玉磊,许建军,
申请(专利权)人:北京国华科技集团有限公司,
类型:新型
国别省市:北京,11
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