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气体腰轮(罗茨)流量计

ATLQ Gas Lobed Rotor (Roots) Flowmeter

Engineering diameter: DN25-DN200mm
Accuracy level: 1.0 级、1.5 级
Billing control: IC card valve or electric valve can be used to achieve charging and control functions.
Applicable media: natural gas, city gas, propane, nitrogen, industrial inert gas, etc
Intelligent gas lobed rotor (roots) flowmeter is the ideal instrument for measuring natural gas, city gas, gas, nitrogen, industrial inert gas and other non-corrosive gases.
Introduction
Gas Lobed Rotor (Roots) Flowmeter is a kind of gas monitoring and measuring instrument with high precision, high reliability and wide range. The intelligent gas lobed rotor (roots) flowmeter is a new flowmeter that integrates flow, temperature, pressure sensors and intelligence on the basis of Roots flowmeter.

With the passage of gas, the pressure difference between the inlet and outlet of the gas meter acts on a pair of waist wheels connected together by a high-precision synchronous wheel, thereby driving the waist wheel to rotate, the gas filled with the metering room is quantitatively discharged, and then connected by a mechanical transmission and a calculator to achieve gas volume and data conversion.

Intelligent gas lobed rotor (roots) flowmeter is the ideal instrument for measuring natural gas, city gas, gas, nitrogen, industrial inert gas and other non-corrosive gases.
Features


01
Wide range: According to different specifications, the higher range can reach 1:216
02
Low starting flow rate: According to different specifications, low starting flow rate can reach 0.04m³fh.
03
High precision, high repeatability: long-term accuracy is not affected by the medium, long-term operation, stable accuracy.
04
Small pressure loss: according to different specifications, pressure loss 0.08kPa-0.58kPa.
05
High integration, low power consumption: microcomputer technology and high-performance integrated chip, the whole machine has powerful functions and excellent performance.
06
Compact structure: pressure sensor, temperature sensor, flow sensor are all built in, making the structure more compact.
07
Digital pressure temperature sensor: digital temperature sensor and digital pressure sensor configuration, separate calibration and verification, easy to replace, maintain and use.
08
Segment correction: Search the flow frequency signal, the instrument coefficient can be automatically segmented linear correction, improve the wide range accuracy of the instrument.
09
Complete data storage function: using E2PROM data storage chip, save user parameters, manufacturer parameters, timely data storage function, can prevent data loss during sudden power failure, in the state of power failure, internal parameters can be saved.
010
The basic output is complete: The intelligent flowmeter has pulse output, working condition or standard condition pulse signal output, and calibrated pulse output. It can also output 4-20mA analog signal or RS485 communication according to user needs.
Specifications
Model number Flow specification Nominal diameter

(mm)
Nominal pressure

(MPa)
Starting flow

(m3/h)
Flow range

(m3/h)
accuracy
ATLQ-20 G16 25










1.6

2.5

4.0
0.05 0.5-25












1.0 级、1.5 级
ATLQ-40 G25 40 0.05 0.4-40
ATLQ-65 G40 50 0.06 0.65-65
ATLQ-80 G65 50 0.06 0.8-80
ATLQ-100 G65 50/80 0.08 0.625-100
ATLQ-150 G100 80 0.1 1-160
ATLQ-200 G160 80 0.1 2.5-250
ATLQ-300 G160 100 0.12 3-300
ATLQ-450 G250 100 0.15 2.5-400
ATLQ-650 G400 100/150 0.65 4-650
ATLQ-1000 G650 150 0.65 13.3-1000
ATLQ-1600 G1000 200 1.05 32-1600
Model Selection
01 Measure the medium, temperature, whether there is corrosion
02 Flow range and inside diameter of user pipe
03 Pressure rating
04 Whether to show on site
05 Working power supply
06 Signal output, communication
07 Whether to explosion-proof
08 Installation mode
09 Precision class
Installation
 
1、Before installation and use, the user should read this description in detail to ensure the correct installation and reasonable use of the flow meter, so as not to affect the normal operation and measurement accuracy.

2、Before installing the flow meter, the outlet package should be removed, and granular impurities must be prevented from falling into the measuring room, such as anti-rust oil on the surface of the measuring room, which can be washed with gasoline or kerosene, and impurities in the pipeline should be strictly removed. A filter or filter should be installed upstream of the flow meter to prevent rust slag, welding slag and impurities from entering the measuring room.

3、When the flow meter is installed, whether the outlet is vertical or horizontal, the rotor axis should be kept horizontal as far as possible. In order to prevent the rust slag and welding slag impurities in the newly installed pipeline from entering the flow meter, the user should first install the transition pipe on the installation position of the flow meter, vent for a period of time (about a week), ensure that there are no large particles of impurities, and then replace the flow meter.

4、Install the flow meter to ensure that the center of the flow meter is aligned with the center of the pipeline, without misalignment, and that the flow meter is not affected by external forces (including axial and tangential).
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