HQLY Roots flowmeter

Characteristics of Roots flowmeter:

The Roots flowmeter produced by our factory has a simplified and compact structure, good universality and interchangeability, small size, light weight, beautiful appearance, less consumables, low cost, good processability and economy, especially in terms of structural performance, with outstanding advantages:

1. Using numerical equations to derive the enveloping curve of the cycloidal rotor, programming with a microcomputer, and CNC machining to form it, the two rotors are combined at a 45 degree relative angle to ensure uniform and consistent meshing clearance between the two pairs of rotors. Its measurement error is linear and adjustable, eliminating vibration and running smoothly with constant flow rate, resulting in good measurement accuracy and repeatability; And it has good interchangeability.

2. A special sealing structure is used between the rotor main shaft and the shaft magnet, which makes it difficult for impurities or sand particles in the medium to enter the bearing, ensuring that the journal and bearing are not easily worn or damaged, and extending the service life; And it ensures that the rotor is not displaced or crushed due to journal and bearing wear, ensuring that the rotor clearance remains unchanged and the accuracy is not reduced.

3. The driving gear is located in the symmetrical middle of the two rotors, ensuring the balance of rotor operation, shaft and bearing, and the force balance of the driving gear, ensuring that they are not easily damaged, prolonging their service life, thereby improving rotor speed and stability, reducing vibration, reducing volume, and improving measurement accuracy.

4. Reform the gear allocation, reduce the load and speed of the magnetic coupling shaft to prevent misalignment or loss of data, and ensure accurate blocking of indication values.

5. The magnetic coupling shaft adopts rare earth material multipolarization, which improves the transmission torque and prevents demagnetization, loss of rotation or inability to move the meter head transmission, ensuring error free transmission, ensuring indication accuracy, and reducing volume.

6. Adopting a special structure, the flowmeter can be installed vertically or horizontally, reducing production plant investment and facilitating user use.

7. Optimized exterior structure, with a wide range of universal components, making it easy to repair parts.

8. The header has various types, including upright, angled, and right angled, which can be configured and adjusted according to the size of the aperture and the user's installation position, making it convenient for users to observe and read.

Main technical indicators of Roots flowmeter

Accuracy level: Y-shaped 0.5, 0.2 level; Q-type 1.0, 1.5 level;

Medium accuracy: 0.3~500mPa · s (Y-shaped);

Pressure loss: Δ P ≤ 0.04Mpa when the viscosity of the measured medium is ≤ 3 mPa · s.

Overview of Roots flowmeter

The LLY series Roots flowmeter is a volumetric flow measuring instrument used for continuous or intermittent precise measurement of the flow rate of media flowing through pipelines. Can be made of different materials according to different tested media; And according to the environmental state of the measured medium and various pressures and temperatures, corresponding flow meters are made for various users such as oil fields, refineries, ports, oil depots, oil pipelines, refueling pump stations, chemical industry, power plants, and other departments for measuring chemical liquids and solutions.

Structure principle of Roots flowmeter

The working principle of this flowmeter is that when the measured medium flows through the flowmeter, a pressure difference is formed at the inlet and outlet of the flowmeter. This pressure difference drives the Roots rotor to rotate. When the size of the rotor and measuring chamber structure is constant, the volume of the discharged medium is proportional to the speed of the rotor. This speed is transmitted to the meter pointer and counter through a variable speed mechanism at a certain speed ratio, and the volume of the medium flowing out can be read; And equipped with a signaling device, transmitting a certain number of pulse equivalents to the control instrument room for remote display and centralized control.