锐孔板流量计,构造简单,适用性广,在化工生产过程中,得到广泛采用。但当用于焦油之类的粘稠易凝介质的流量测量时,取压装置的导管,有凝滞堵塞的现象发生。为了防止这种堵塞情况的出现,我们对锐孔板板的环室作了改革,并在取压、导压等测量环节上采取了一些措施,通过实践,说明问题初步得到了解决。现将具体做法介绍于下。一、环室的改装我们使用的锐孔板环室,如图1所示,各部尺寸,除图上所标明的以外,其余的均与标准设计相同。这种环室由两部分拼焊而成。其主要特点,环室内壁较薄,厚为1毫米,为了提高防腐蚀性能,应用不锈钢制作。当用于高压系统时,为了增加接 Rui orifice flow meter, simple structure, wide applicability, in the chemical production process, widely used. However, when used for measuring the flow of viscous and easily condensable media such as tar, the conduit of the pressure-receiving device is clogged. In order to prevent the appearance of such blockage, we made a reform on the ring chamber of the orifice plate and adopted some measures in the measurement of pressure, pressure and other measures. Through practice, the problem was initially solved. The specific practices are introduced below. First, the conversion of the ring chamber We use the orifice plate ring chamber, shown in Figure 1, the size of each department, except as shown on the map, the rest are the same as the standard design. This ring chamber consists of two parts welded together. Its main features, ring chamber thinner wall, the thickness of 1 mm, in order to improve anti-corrosion performance, the use of stainless steel. When used in high-pressure systems, to increase the connection