Application Case of ST502 with Ultra-High Temperature Transducer in the Chemical Industry

Application Case of ST502 with Ultra-High Temperature Transducer in the Chemical Industry

Project Background

In the production process of the chemical industry, the flow measurement of high-temperature liquid media has always been a key focus and challenge in the selection of field instruments. Especially in urea synthesis, transportation, and related processes, the high temperature of the media and the complex operating conditions place higher demands on the stability, temperature resistance, and long-term operational reliability of flow meters.

This case study is from a chemical company in Shanghai, China, which requires continuous flow monitoring of a high-temperature urea solution approaching 260℃ for production process control and operational data analysis.

Operating Challenges

The project site has the following typical characteristics:

• Extremely high media temperature: Urea solution temperature close to 260℃
• Large pipe diameter: DN400 stainless steel pipe
• High requirements of the chemical site: Long-term stable operation is required, with minimal maintenance and downtime
• No production shutdowns allowed for modification: Traditional insertion-type or pipe-cutting solutions are difficult to implement.

Under these conditions, conventional mechanical or electromagnetic flow meters have certain limitations in terms of installation, maintenance, and temperature resistance.

Solution

To address the above operating requirements, the customer ultimately selected our ST502-HT013 wall-mounted ultrasonic flow meter, equipped with an ultra-high temperature ultrasonic sensor. The clamp-on installation eliminates the need for pipe cutting.

Main configurations are as follows:

• Model: ST502-HT013 Wall-mounted Ultrasonic Flow Meter
• Sensor Type: Ultra-high Temperature Clamp-on Sensor
• Pipe Material: Stainless Steel
• Pipe Diameter: DN400
• Measuring Medium: Urea Solution
• Medium Temperature: Approximately 260℃
• Application Industry: Chemical Industry

Application Advantages

1. Ultra-high Temperature Adaptability

The ultra-high temperature sensor paired with the ST502-HT013 can stably measure liquids at temperatures approaching 260℃, meeting the demands of harsh chemical operating conditions.

2. Clamp-on Installation, No Production Shutdown

The sensor is directly installed on the outer wall of the pipe, eliminating the need for drilling or cutting, significantly reducing installation risks and construction costs, making it particularly suitable for retrofitting existing systems.

3. Suitable for Large Diameter Pipe Measurement

It exhibits excellent signal stability and measurement repeatability for DN400 stainless steel pipes, making it suitable for large-diameter pipelines commonly found in the chemical industry.

4. Low Maintenance and Stable Operation

With no moving mechanical parts and no direct contact with the medium, it avoids wear and clogging issues in high-temperature and highly corrosive environments, ensuring reliable long-term operation.

Customer Feedback

After the equipment was put into operation, the flow data was stable and the response was timely, meeting the customer's requirements for high-temperature urea solution flow monitoring while significantly reducing maintenance workload. The customer positively evaluated the equipment's high-temperature resistance and external clamp-on installation method.

Summary

The ST502-HT013 wall-mounted ultrasonic flow meter, with its ultra-high temperature measurement capabilities, non-invasive installation method, and excellent performance in large-diameter stainless steel pipes, has been successfully applied to high-temperature urea solution measurement scenarios in the Shanghai chemical industry, providing a reliable and efficient solution for flow monitoring under similar high-temperature and complex conditions.