Introduction

In the field of highly corrosive liquid flow measurement, HQ electromagnetic flowmeters stand out with their innovative fluororubber lining technology. TC series products (such as models HYLD and TC-DCZHQ) perfectly solve the corrosion challenges of acidic and alkaline media through special lining materials, providing high-accuracy, long-service-life flow monitoring solutions for industries such as chemical processing and environmental protection. This article provides an in-depth analysis of the working principle and core advantages of this breakthrough technology.

Industry Challenges in Measuring Highly Corrosive Liquids

Industries such as chemical processing, pharmaceuticals, and environmental protection often need to handle strong acids, strong alkalis, or other corrosive liquids. Traditional flowmeters are prone to the following problems in these harsh environments:

• The sensor electrodes and measuring pipeline are corroded, resulting in reduced measurement accuracy;
• Equipment service life is significantly shortened, and maintenance costs are high;
• Measurement data is unstable, affecting process control and production efficiency.

These problems have a serious impact on production safety and economic benefits for enterprises, making it urgent to adopt a corrosion-resistant flow measurement solution capable of long-term stable operation.

Fluororubber Lining Technology of HQ Electromagnetic Flowmeters

Material Characteristics and Selection Basis

HQ electromagnetic flowmeters use a specially formulated fluororubber lining material, which offers the following outstanding characteristics:

Structural Design and Working Principle

HQ electromagnetic flowmeters adopt a patented composite lining structure design:

1. The inner layer is a dense fluororubber layer that comes into direct contact with the medium, providing optimal corrosion protection;
2. The middle layer is a reinforced fiber mesh, improving structural strength and dimensional stability;
3. The outer layer is conductive rubber, ensuring uniform distribution of the electromagnetic field and guaranteeing measurement accuracy.

This design enables TC series electromagnetic flowmeters (including models such as HYLD and TC-DCZHQ) to maintain measurement accuracy of ±0.5% over the long term in highly corrosive environments.

Core Advantages of TC Series Products

Excellent Corrosion Resistance

Accelerated corrosion tests in the laboratory have proven that:

• After immersion in 98% concentrated sulfuric acid for 1000 hours, the lining material showed no obvious changes;
• After immersion in 40% sodium hydroxide solution for 800 hours, it still maintained good mechanical properties;
• It also has excellent resistance to organic solvents such as acetone and xylene.

Diverse Model Options

According to different application scenarios, the TC series offers a variety of specifications:

• TC-CDC Model: suitable for conventional corrosive liquids, offering the best cost performance;
• TC-FFDC Model: specially designed for high-concentration hydrofluoric acid, with a specially formulated lining;
• TC-WSDC Model: a wide-range model suitable for working conditions with large flow fluctuations;
• TC-GYDC Model: a high-pressure model that can withstand working pressure up to 4.0MPa.

Analysis of Practical Application Cases

Sulfuric Acid Flow Measurement in the Chemical Industry

After a large sulfuric acid production enterprise adopted the TC-DCZHQ electromagnetic flowmeter to replace traditional stainless steel flowmeters:

• Service life was extended from 6 months to more than 5 years;
• Annual maintenance costs were reduced by 80%;
• Measurement accuracy improved to ±0.3%, significantly enhancing product quality stability.

Wastewater Treatment Applications in the Environmental Protection Industry

In the monitoring of strongly acidic and alkaline wastewater at municipal sewage treatment plants, the TC-ZNDC electromagnetic flowmeter delivered outstanding performance:

• Continuous operation for 3 years with no signs of corrosion;
• Self-cleaning electrode design to prevent contaminant buildup;
• 4-20mA and RS485 dual outputs for easy system integration.

Selection and Maintenance Recommendations

Selection Considerations

To ensure the optimal performance of HQ electromagnetic flowmeters, the following should be considered during model selection:

1. The specific chemical composition and concentration of the medium;
2. Operating temperature and pressure range;
3. Pipeline size and flow range;
4. Output signal and communication protocol requirements.

Key Points for Routine Maintenance

Although fluororubber lining technology greatly reduces maintenance requirements, it is still recommended to:

• Inspect the surface condition of the lining once every six months;
• Regularly calibrate the zero point to ensure measurement accuracy;
• Avoid mechanical impact and excessive vibration.

Summary and Action Recommendations

Through its innovative fluororubber lining technology, HQ electromagnetic flowmeters effectively solve the industry challenge of measuring the flow of highly corrosive liquids. TC series products (including various models such as HYLD and TC-DCZHQ), with their excellent corrosion resistance, high accuracy, and long service life, have become the preferred solution for industries such as chemical processing and environmental protection.

As a professional high-tech enterprise, Xi'an Shenghongchuang Instrument Co., Ltd. has extensive experience in the R&D of flow measurement equipment. Our technical team can provide you with professional selection advice and customized solutions.

Contact us now to obtain detailed technical documentation and quotation information for TC series electromagnetic flowmeters, and provide reliable assurance for your corrosive liquid flow measurement needs.