Sewage pipeline flowmeter

Overview of Sewage Pipeline Flow Meter Products

Electromagnetic flowmeter is a high-precision and highly reliable flow instrument designed using Faraday's law of electromagnetic induction. The main components of the sensor are: measuring tube, electrode, excitation coil, iron core, and magnetic yoke housing. Electromagnetic flow meters are mainly used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. Including highly corrosive liquids such as acids, alkalis, salts, etc. This product is widely used in industrial sectors such as petroleum, chemical, metallurgical, textile, papermaking, environmental protection, food, as well as municipal management, water conservancy construction, river dredging and other fields for flow measurement.

Fluid measuring instruments developed, researched, and produced using advanced technology have the characteristics of high precision, high reliability, and long service life. To ensure product quality, meticulous research and control are carried out at every stage of the product structure, material selection, process formulation, production assembly, and factory testing, and a complete flow calibration and detection system is provided. While meeting on-site display requirements, it can also output 4-20mA current signals for recording, regulation, and control purposes. It has been widely used in industrial technology and management departments such as chemical, environmental protection, metallurgy, pharmaceuticals, papermaking, and water supply and drainage. In addition to measuring the flow rate of general conductive liquids, flow meters can also measure the volumetric flow rate of liquid-solid two-phase flow, high viscosity liquid flow, and salt, strong acid, and strong alkali liquids.

Manufacturer's price:

Measurement principle of sewage pipeline flowmeter

The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. In a flowmeter, the conductive medium inside the measuring tube is equivalent to a conductive metal rod in Faraday's test, and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through, an induced voltage is generated. The induced voltage generated by measuring the two electrodes inside the pipeline. The measuring pipeline achieves electromagnetic isolation from the fluid and measuring electrode through non-conductive lining (rubber, Teflon, etc.), as shown in the figure.

Product features of sewage pipeline flowmeter

1. All digital processing, strong anti-interference ability, reliable measurement, high accuracy, and a flow measurement range of up to 150:1

2. Ultra low EMI switching power supply, suitable for a wide range of power supply voltage changes, with good EMI resistance performance.

3. Adopting a 16 bit embedded microprocessor, it has fast computing speed, high accuracy, programmable low-frequency rectangular wave excitation, improved stability of flow measurement, and low power consumption.

4. Using SMD devices and surface mount technology, the circuit has high reliability.

5. There are no movable parts or flow blocking components inside the pipeline, and there is almost no additional pressure loss during measurement.

6. On site, the range can be modified online according to the actual needs of the user.

7. The measurement results are independent of physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity, etc.

8. High definition backlit LCD display, fully Chinese menu operation, easy to use, simple to operate, easy to learn and understand.

9. It has digital communication signal outputs such as RS485, RS232, Hart, and Modbus. (Optional)

10. It has self checking and self judging functions.

11. Hourly total volume recording function, recording the total flow volume in hours, suitable for time-sharing measurement system (optional)

12. There are three integrators inside that can display the forward cumulative amount, reverse cumulative amount, and difference cumulative amount respectively. There is also a non power failure timer inside, which can record 16 power failure times. (Optional)

13. Infrared handheld operator, 115KHZ communication speed, all functions of long-distance non-contact operation converter (optional)

Technical parameters of sewage pipeline flowmeter

Diameter and Flow Range Table of Sewage Pipeline Flow Meter

Electromagnetic flow meters have a wide range of applications. Large caliber instruments are commonly used in water supply and drainage engineering, while small and medium-sized instruments are commonly used in solid-liquid two-phase difficult to measure fluids or high demand places, such as measuring pulp and black liquor in the paper industry, slurry in non-ferrous metallurgy industry, coal slurry in coal preparation plant, and strong in chemical industry

Control and monitoring of corrosive liquids and cooling water for blast furnace tuyere in the steel industry, as well as flow measurement and control of hydraulic coal transportation in long-distance pipelines. Small caliber and micro caliber are commonly used in places with hygiene requirements such as the pharmaceutical industry, food industry, and biotechnology.

1. Choose the appropriate type based on the characteristics of integrated and separated electromagnetic flow meters. The integrated installation and wiring are convenient, with moderate accuracy, and should not be installed below the ground to prevent the converter from being submerged in water. High degree of separation, converter and transmission

Remote installation of sensors is more suitable for places with poor on-site environments (such as hazardous, toxic, and easily flooded areas), but installation and wiring are strict, otherwise interference signals may be introduced.

2. Choose the appropriate electrode form. For media that do not produce crystals, scars, or contaminate electrodes, standard electrodes can be used. Otherwise, use a type of cleaning electrode or an electrode with a cleaning connection device. For sludge testing, replaceable electrodes can also be used.

3. Select electrode materials based on the corrosiveness of the tested medium.

Electrode selection diagram:

Diagram for selecting lining materials for the tested medium:

Type spectrum of sewage pipeline flowmeter