Selection of online density meters

A density transmitter has just been installed in the flue gas desulfurization system to measure the density of the desulfurizing agent. Shaanxi Shuaike has not been put into operation, and its effectiveness is unknown.

Check whether the parameters meet your requirements. The slurry density meter measures the density of the medium by utilizing the principle of pressure balance. It uses air as the medium for pressure transmission, which not only avoids the additional errors associated with remote transmission devices but also prevents the medium from corroding the measuring elements. The core component – the pressure difference sensor – utilizes the latest generation of high-performance single-crystal silicon sensors from abroad, combined with high-performance large-scale integrated circuits as well as rigorous manufacturing processes. This device features high measurement accuracy, a robust and reliable structure, comprehensive lightning protection measures, easy installation, and good long-term stability. II. Applicable Subjects: It is generally used to determine the density of mud in oil field drilling fluids. It is mainly used in cementing operations for offshore oil fields, desert oil fields, and onshore oil fields. At the same time, driven by the needs of industrial development, it is also used in production sites such as petrochemicals, pharmaceuticals, and metallurgy for online density measurement of products. III. Technical Specifications 1. Density measurement range: generally 0–5 g/cm³. 2. Measurement accuracy: 0.5%, 1%, or 2%, selectable. 3. Level measurement range: generally 0–10 meters. 4. Types of media: corrosive substances such as acids, bases, and salts, as well as viscous media like sludge and chemicals. 5. Media temperature: -10°C to 80°C, or 0–200°C. 6. Ambient temperature: -40°C to 50°C. 7. Instrument power supply: 24V DC. 8. Air pump power supply: 220V AC. 9. Outputs: 1) 4–20 mA; 2) 1–5 V; 3) Wireless transmission or as per special requirements. Contact person: Liang Dehui, 13332465641

Emerson has a type of densitometer whose working principle is as follows: All HighSense liquid density sensors operate on the same principle, similar to a mass-spring system. When a mass is attached to a spring and then released, the mass-spring system vibrates at its natural frequency. It is known that it reaches rest due to facial damping. By applying a driving force to the mass to overcome damping, resonance can be maintained. When the density of the product being measured changes, the vibrating mass in the density sensor also changes, and this can be detected through a change in the resonant frequency. Typical industries include: oil and petrochemicals, brewing, food industry, pharmaceutical industry, mineral processing (clay, carbonates, silicates, etc.). If you need detailed information, feel free to leave your email address and I’ll send it to you~~

Thank you to the friend on floor 4; my email address is h10j110@126.com

Vibrating density meters are produced by Yokogawa

Differential pressure online density meter, manufactured by Shanghai Menghui

Spray hard; hehe, maybe you’ll even knock over those big foreign companies!

For slurry or any type of pulp density meter, the best choice is a Coriolis mass flow meter, which offers high measurement stability and precision. However, attention should be paid to the issue of wear; the following solutions are recommended: 1. Install it on a bypass pipe as much as possible, and place a control valve downstream of the instrument to keep the flow rate below 3 m/s, thereby reducing wear. 2. Use a mass flow meter with straight tubes (preferably a single straight tube), as it has no flow-blocking elements or bends inside, which reduces the risk of wear (such products are available from Kolon). 3. Install a protective ring at the instrument’s inlet; this helps to protect the density meter itself from wear. In many power plant desulfurization applications, density meters using these solutions can operate stably and accurately for over 5 years

The Russian Ikofis Na-22 radioactive densitometer is an ideal alternative to hazardous gamma radiation sources such as cobalt-60 and cesium-137. With its notable advantages including low radiation levels, high precision, and the absence of approval procedures, it greatly simplifies the use of densitometers in the mining industry. It poses no harm to operators or the environment, while also reducing costs associated with use and maintenance. Thus, it contributes to improving the technical standards of China’s automation industry!