Application and advantages of metal rotor flow meter

Abstract: The information on the application and advantages of metal rotor flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. 1. Working principle of metal rotameter The float of metal tube rotameter is in the measuring tube. With the change of flow, the float moves up, and the buoyancy of the float and the gravity of the float reach a balance at a certain position. At this point float and orifice plate (or cone tube). More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the application and advantages of metal rotor flowmeters. 1. The working principle of the metal rotameter The metal tube rotameter float is in the measuring tube. With the change of the flow, the float moves upward, and the buoyancy of the float and the gravity of the float reach a balance at a certain position. At this time, the flow annulus area between the float and the orifice plate (or cone tube) remains constant. The area of ​​the annular gap is proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the flow rate, and the position of the changing float is transmitted by the internal magnet to the external indicator, so that the indicator can correctly indicate the flow value at this time. . This makes the indicator housing not in direct contact with the measuring tube, so even if limit switches or transmitters are installed, the instrument can be used under high temperature and high pressure working conditions. 2. Main features and structure type of metal rotor flowmeter All metal structure, there are indicating type, electric remote transmission type, corrosion-resistant type, high-pressure type, jacket type, explosion-proof type. With 0-10mA, 4-20mA standard analog signal output and field indication. Accumulation, digital communication, on-site modification of measurement parameters, different power supply functions, with magnetic filters and special specifications. Widely used in petroleum, chemical, power generation, pharmaceutical, food, water treatment, etc. In the process of flow measurement in complex, harsh environmental conditions, and various media conditions. 2.1 Main features (1) Sturdy, simple, reliable, low maintenance and long life. (2) Modular, intelligent, indicator design. (3) The requirements for the downstream straight pipe section are not high. (4) There is a wide flow range of 10:1. (5) Short stroke, small structure design. (6) Realize soft output through HART, display instantaneous and cumulative flow, switch signal output, on-site setting and adjustment of medium parameters, and on-site compensation. (7) Multi-level correction of medium viscosity, density, temperature and pressure. (8) There are various forms such as local type, remote transmission type, jacket type, explosion-proof type, corrosion-resistant type, hygienic type, etc. (9) Stainless steel, Hastelloy, titanium material, PTFE material measurement system can be selected (10) Low Pressure loss design. (12) Vertical, horizontal and various installation methods are more suitable for different occasions. (13) All-metal structure, suitable for high temperature, high pressure and strong corrosive media. (14) It can be used in flammable and explosive hazardous situations 2.2 Structure type The flow detection element of the metal rotameter is composed of a vertical tapered tube that expands from bottom to top and a float group that moves up and down along the axis of the tapered tube . When the fluid to be measured passes through the annular gap formed by the conical tube and the float from bottom to top, the upper and lower ends of the float generate differential pressure to form a rising force of the float. The area increases accordingly, the fluid velocity at the annular gap decreases immediately, the differential pressure between the upper and lower ends of the float decreases, and the lifting force acting on the float also decreases. high. There is a corresponding relationship between the height of the float in the cone tube and the flow through it. According to the measurement environment, it can be installed vertically or horizontally. See the table below. (1) High-temperature structure The high-temperature structure is used for flow measurement of the medium where the temperature of the medium is too high and measures for thermal insulation of the measuring tube are required. The high temperature type structure increases the distance between the measuring tube and the indicator to increase heat dissipation and increase the thickness of the thermal insulation material to ensure that the indicator works within the allowable ambient temperature range. The in-situ metal tube rotameter can measure the flow rate of the medium with temperature up to 400℃. (2) Structural damper structure type with damper device is used for medium flow measurement when the flow (pressure) at the inlet of the flow meter is unstable, especially for gas measurement. (3) Jacket-type structure The jacket-type structure is used for flow measurement of media that require heat tracing or cooling (such as high viscosity and easy crystallization). By heating or cooling the medium in the jacket, the low boiling point, low freezing point fluid is not vaporized and crystallized. For the inlet and outlet connections of the heat tracing medium, the standard type uses HG20594-97DN15PN1.6 flanges. Other flange specifications can be specified with the manufacturer. The pressure level of the jacket is 1.6MPa. 2.3 Type selection The rotor flowmeter is mainly used for It is generally not suitable for measuring single-phase liquids or gases, liquids containing particulate solids or gases containing droplets. Because the float adheres to particles or tiny air bubbles in the liquid flow, it will affect the measurement value. If you need to transmit the signal far away for total accumulation or flow control,Generally, the metal rotor flowmeter with remote transmission is used.

Beijing Sincerity Automatic Equipment Co., Ltd as one who also teaches operations about how we use our whole operating system as a way to gain advantage and create considerable value and capture value in a sector where, in essence, the environment is quite hostile from a competitive point of view.

We are proud to be one of the largest suppliers out there. You will love what we offer for your mass flow meter solution. Check our website at Sincerity Flow Meter or call to talk to our customer service department with any questions you may have.

An easy and inexpensive mass flow meter solution can be easily obtained now through purchasing a mass flow meter electromagnetic flow meter slurry online. Find your solution at Sincerity Flow Meter, your demand will be satified.