Introduction of insertion type electromagnetic flowmeter

Case introduction

On the basis of retaining the advantages of pipeline electromagnetic flowmeters, in order to solve the problems of difficulty and high cost in installing pipeline electromagnetic flowmeters on large pipelines, based on the NIKURADS principle, electromagnetic methods are used to measure the average flow velocity of the fluid, thereby Obtain the volumetric flow rate of the fluid. Especially after adopting pressure opening and pressure installation technology, the plug-in electromagnetic flowmeter can be installed without water interruption, and can also be installed on cast iron pipes and cement pipes. The successful development of the plug-in electromagnetic flowmeter, combined with the internationally advanced flow compensation algorithm and fluid model, combined with the unique low-power core converter, provides a new method and choice for high-end users to detect fluid flow, which is stable and accurate. The reliability, failure rate and anti-interference performance are comparable to those of international first-tier brands.

It consists of two parts: plug-in sensor and converter. According to different power supply methods, it can be divided into three types of products.

① 3.6V/DC built-in lithium battery power supply ② AC220V power supply ③ 336VDC + solar power supply

Among them, the large-capacity industrial lithium battery-powered plug-in flow meter is specially designed for the water industry and is widely used. In places without power supply on site, it meets the needs of urban water supply, provides information management services, and ensures accurate water fee calculations; measurement result management is upgraded to process management, and online installation does not require water interruption. The flow rate is small at night, high accuracy, convenient installation method, reliability and It has high stability and is the best choice for pipe network measurement of water supply and tap water enterprises.

The plug-in electromagnetic flowmeter has a simple structure, exquisite structure, easy installation, convenient inspection and maintenance, and the measurement is not affected by the material of the pipe being measured. It is suitable for petrochemical, electric power, metallurgy, textile, medicine, food, paper and other industries as well as environmental protection, water conservancy and other departments.

Installation of insertion electromagnetic flowmeters follows the following recommendations for optimal performance. A 20-diameter straight pipe is set upstream and a 10-diameter straight pipe is set downstream. Failures caused by pumps, valves and elbows require longer upstream and downstream straight pipes (40D and 20D respectively). If there is too much turbulence in the pipe, install a rectifier.

Confirm that the flow signal on the flow meter matches the flow direction in the pipe, and ensure that the electrode is perpendicular to the direction of flow. Confirm the location of the electrical connection and flow meter bracket. The probe direction must be aligned with the center of the pipe to avoid excessive local vibration of the pipe. The pipe must always be filled with liquid even if there is no flow.