Electromagnetic flowmeter

Overview

Electromagnetic flowmeter is mainly used to measure the volume flow of conductive liquid and liquid-solid two-phase fluid flowing through closed pipes continuously or intermittently. Its measurement accuracy is not affected by the temperature, density, viscosity and conductivity (> 5us / cm) of the measured medium. The flow rate of various corrosive liquids and strongly worn slurry can be measured by selecting suitable electrode materials and lining materials. The product is widely used in petroleum, chemical, metallurgy, textile, pharmaceutical, paper, power and environmental protection fields.

Working principle

The measurement principle is based on Faraday's law of electromagnetic induction (see Figure). An alternating external magnetic field is set outside the measuring tube of the sensor, and a pair of motors are installed on both sides of the vertical direction of the magnetic line of force. When the conductive medium flows through the measuring tube to cut the magnetic line of force, the induced electromotive force E is generated on the motor. The induced electromotive force E has the following relation:

E=K.B.V.D

E: Induced electromotive force

K:Instrument constant

B:Magnetic induction

Product structure:

It is composed of flow sensor and converter, equipped with a variety of standard output signal interfaces.

Functional features

Ø There is no choke in the measuring tube, and the pressure is almost zero;

Ø Corrosion resistance and wear resistance;

Ø The measurement accuracy is high and the work is stable and reliable;

Ø It has strong anti-interference ability and wide range;

Ø Various standard interfaces: 4 ~ 20mA current output, pulse output, alarm output and RS-485 communication.

Technical parameters

Ø Nominal diameter: DN15～DN600;

Nominal pressure (MPa): 1.0, 1.6, 2.5, 4.0, 16, 25, 32, 35, 40, 45;

Ø Electrode materials: 314 stainless steel, 316L stainless steel, titanium, tantalum;

Ø Lining materials: polytetrafluoroethylene, polyfluoroethylene propylene, polyurethane rubber, chloroprene rubber;

Accuracy: 0.5 and 1.0;

Ø Output signal: 4-20mA current output and pulse output of standard two-wire system;

Ø Communication interface: RS-485, RS-232C, MODBUS, REMOTE(HART);

Ø Power supply mode: 24VDC, 220VAC;

Ø Power consumption: AC<10W, DC<7.5W;

Ø Applicable medium temperature: -25～+65℃, -25～+140℃ (optional)

Ø Flow range: see the table below

Company profile

Shengli Oil Field Shengli Petroleum Instrument Factory is located in Dongying City, Shandong Province, where the Yellow River flows into the sea. The company was founded in 1992 with a registered capital of 50.1 million yuan. As a supplier of oil exploitation industry, it has nearly 30 years of production history and service experience. It is an equipment manufacturing and service provider integrating the R & D, production, sales and technical consultation of petroleum equipment, equipment, instrument and instrument products.

The company has strong technical force, strong production capacity, perfect after-sales service system and good social reputation. Since its establishment, the company has focused on independent research and development and industry university research cooperation, and has a number of core technologies with independent intellectual property rights. At present, the company is equipped with a lot of products, including oil and gas continuous metering device, oil and gas pressurization metering device, oil well continuous gas separation device, gas pressure regulating device, steady flow water distribution valve group, intelligent dosing device, intelligent inventory system, quantitative loading system, continuous oil level monitoring system, electromagnetic flowmeter, vortex flowmeter, turbine flowmeter, high pressure water meters and other types of multi series and specifications of products. Among all the products, the oil and gas continuous metering device is one of the self-developed products with core technology. Since its successful research and development, the product has been widely used in domestic major oilfields due to its wider applicability, higher measurement accuracy and simple and easy-to-use operation mode. At the same time, it has attracted more and more international customers' attention.

At present, the company has obtained CE, SIL and other international certification, and successfully passed ISO9001, ISO14001, ISO45001 system certification, and obtained gas pressure regulator, industrial pressure pipeline GC2 and other special equipment license. In 2019, the enterprise was identified as a high-tech enterprise in Shandong Province.

The company focuses on strengthening the building of sales force. While stabilizing and strengthening the existing market, efforts should be made to explore other emerging markets. At present, the company's product sales cover Daqing, Jilin, Shengli, Zhongyuan, Xinjiang, Changqing, Yanchang, Guangxi and other domestic oil field markets. At the same time, it has many cooperative partners in the three eastern provinces, Inner Mongolia, Shanxi, Shaanxi, Shandong, Henan, Anhui and other major domestic coal production areas, and the international sales business is also in the process of expansion. Superior product performance, excellent product quality and good after-sales service guarantee have helped enterprises win extensive social praise.

The company will adhere to the “quality-oriented, customer-oriented, integrity based, innovative development” purpose, strive to develop and produce advanced technology, manufacturing products, to provide customers with more scientific and reliable solutions and better services.

Sincerely looking forward to cooperating with you! Welcome the clients all over the world to discuss the future!