Liquid level measurement of gasoline vertical internal floating roof storage tank

A certain railway transportation limited liability company

In the first phase of the customer's project, two different measurement principles, high-precision radar and servo level gauges, were installed on the storage tank. The customer encountered frequent failures of servo level gauges, which led to the operation and maintenance team investing a lot of manpower to troubleshoot. The customer needs a reliable and validated level measurement solution to prevent such incidents from happening again.

The customer was informed in the "Opinions on On Site Verification of Safety Production License Changes" organized by relevant departments that "all on-site servo level gauges for storage tanks in the railway loading and unloading platform tank area were found to be damaged", and requested a deadline for rectification.

Comparison of measurement trends between high-precision radar level gauge (red) and servo level gauge (blue)

The traditional external liquid level gauge detection sensor is installed at the bottom of the vertical storage tank. During long-term production and operation of the vertical storage tank, impurities and sediments will be generated, which will affect the measurement stability.

The technical support team of Dinghua Electronics is deeply involved, working closely with customers to understand their needs and the challenges they face. Recommend customers to choose the new generation of energy gathering external liquid level gauge launched by Dinghua Electronics.

This product is mainly designed for harsh working conditions such as vertical storage tanks. Compared with traditional external level instruments, the measurement signal is greatly improved, which can effectively overcome tank bottom sedimentation, reduce measurement blind spots, and significantly improve stability and accuracy.

Application site diagram of energy gathering type external liquid level gauge Source: Dinghua site working condition diagram

With the successful implementation of reliable and validated measurement solutions, the customer has eliminated safety production hazards and smoothly started production.

The measurement accuracy and stability of the energy gathering type external liquid level gauge are consistent with high-precision radar, as shown in the figure:

Comparison diagram of signals between the energy gathering type external liquid level gauge (red) and the high-precision radar liquid level gauge (blue) Source: User Usage Report

After the application of the energy gathering type external liquid level gauge:

1. The liquid level signal significantly increased from 100mV to about 1500mV, and the intensity increased by 15 times.

Before use, the blind spot is about 1.5m; after use, there is no blind spot.

The measurement accuracy and stability have been significantly enhanced, eliminating the impact of incoming liquid shock and liquid level fluctuations on liquid level measurement;

Eliminating the impact of long-term use of storage tanks and the gradual thickening of the sediment layer at the bottom of the tank on liquid level measurement.

Source of signal diagram for ordinary liquid level gauge: Dinghua engineer

Source of Signal Diagram for Energy Gathering External Liquid Level Gauge: Dinghua Engineer