Skid-Mounted Metering System

Overview

Introduction and applications

The skid-mounted metering system is an integrated measuring unit developed in-house to an internationally advanced level. Its core is the on-site operating terminal, which acquires data and controls the whole skid: flow signals, temperature and pressure, combustible-gas detection, signal processing, valve and pump control, and automatic valve-opening adjustment according to flow rate. During loading it continuously monitors static electricity and overflow; if either alarm is triggered, the valve closes and the pump stops automatically. It supports standard protocols including RS485 Modbus RTU and PROFINET.

A complete skid-mounted loading system mainly comprises flow meters, control valves, temperature and pressure transmitters, safety devices such as static/overflow protection and personnel static dischargers, loading arms, vehicle positioning, vapour recovery, an explosion-proof large display and a touch-screen operating terminal (explosion-proof Exd IIBT4, IP65).

It is designed for loading at oil depots, loading and unloading at docks, and loading and drum filling at chemical plants, combining liquid transfer, metering, automatic control and network data transmission. Once the skid arrives on site, only process piping, communication cables and power need to be connected to put it into service.