The long diameter nozzle flow meter uses a throttling flow sensor. It is mainly used in high-pressure or high-temperature and high-pressure situations in the power industry. Main steam, main feed water or desuperheated water all adopt this typical design. It has the characteristics of wide range ratio, impact resistance, small pressure loss, long service life, large measurement range, and measurement accuracy. It adopts a special pressure taking (throat pressure taking) method based on the long-neck nozzle, so that the flow sensor not only has the advantages of the traditional long-neck nozzle, but also has the unique advantages of stable outflow coefficient and high repeatability. The long diameter nozzle flow meter is used with various differential pressure transmitters to measure the flow of various fluids. The flow rate can also be adjusted with the regulator. It is widely used in petroleum, chemical industry, metallurgy, textile, water conservancy, electric power and other departments.
Standard nozzle, also known as welding nozzle. The measurement principle is: when the fluid filling the pipe flows through the throttling device in the pipe, the flow beam will form a local contraction at the throttling piece of the throttling device, thereby increasing the flow rate and lowering the static pressure. A pressure drop, or pressure difference, occurs. The greater the flow rate of the medium flow, the greater the pressure difference generated before and after the throttling member, so the standard nozzle can measure the fluid flow rate by measuring the pressure difference. The standard nozzle flowmeter is based on the law of energy conservation and the law of flow continuity. It is used with a differential pressure transmitter to measure the flow of liquid, steam, and gas. The standard nozzle is widely used in petroleum, chemical industry, metallurgy, and electric power. , light industry and other fields.
