Translation of Differential Pressure Level Gauge

A differential pressure level gauge, also known as a DPLG, is a device used to measure the level of liquid in a container or tank. It operates based on the principle of hydrostatic pressure caused by the height of the liquid column.

The device consists of two pressure chambers – one located at the bottom of the tank and the other at a specific height above the liquid surface. The difference in pressure between these two chambers is proportional to the liquid level. This pressure difference is measured using a pressure sensor or a manometer.

In order to accurately measure the liquid level, the pressure in the second chamber is kept constant, typically by connecting it to a reference pressure source such as atmospheric pressure. By carefully calculating and calibrating the differential pressure, the actual liquid level can be determined with high accuracy.

There are various types of differential pressure level gauges available, such as displacer type, float type, and bubbler type. Each type has its own advantages and disadvantages, and the selection depends on factors such as the type of liquid being measured, operating conditions, and required accuracy.

The translation of "壓差式液位計(jì)" to English is "Differential Pressure Level Gauge." This name aptly reflects the working principle of the device and its purpose in measuring liquid levels. With advancements in technology, there have been significant improvements in the design and accuracy of differential pressure level gauges, making them widely used in industries such as petrochemicals, oil and gas, and water treatment.

In summary, a differential pressure level gauge is an essential instrument for measuring the level of liquid in tanks or containers. Its accurate measurement capabilities and reliable performance make it a preferred choice in a wide range of industries.