product overview
Thermal gas flowmeter is an instrument that uses the principle of thermal conduction to measure fluid flow rate. The instrument uses the constant temperature difference method to accurately measure gas mass flow rate. Thermal gas mass flow meters have the advantages of small volume, high degree of digitization, easy installation, and accurate measurement.
Product Features
1Proprietary traffic data model algorithm; Fuzzy theory control algorithm for temperature and humidity;
2High performance intelligent microprocessors and analog-to-digital/digital to analog conversion chips;
3Large caliber, low flow rate, negligible pressure loss, wide range ratio1000：1, can be expanded according to user requirements;
4Directly measure mass flow without temperature and pressure compensation;
5Low flow velocity measurement is very sensitive;
6Convenient design and selection, easy installation and use;
7Suitable for measuring the flow rate of various single or mixed gases.
8Adopting highly stable patented technology platinumRTDsensor
9Adopting proprietary technology "balanced structure packaging",Self compensation of medium temperature
10Proprietary algorithm,Can achieve high linearity, high repeatability, and high precision
11It can achieve measurement of large pipe diameter and small flow rate, and the minimum flow rate can be measured as low as zero,resolution0.001m/s
12No movable parts, vibration impact can be ignored
13The requirements for straight pipe sections are not high1-2D
14It is independent of the temperature and pressure of the medium
15Exclusive high-temperature algorithm, medium temperature can reach+510℃，
16Input traffic signals12Point dynamic correction, built-in10Point correction
17Online dynamic correction of current/Voltage Output
Product Application
1Public works---Monitoring of electricity, gas, and water treatment
Gas in pipelines; Universal system; Biogas; Gas; natural gas; liquid gas; Preheating air for boiler
2Oil and gas industry
Energy exchange; Gas recovery from filling wells; Gas metering; Gas quality analysis; Leakage test; Natural gas measurement; Torch gas monitoring
3The power industry
Gas measurement during gas distribution in fuel systems; Measurement of various gases in boilers and auxiliary systems; Gas measurement in gas furnaces; Hydrogen measurement; Measurement of primary and secondary air in power plant blast furnaces
4Chemical industry
Smoke circulation monitoring; Gas flow measurement in sampling system; Gas flow measurement of induced draft fan; Measurement of ammonia gas in fertilizer plants; Measurement of various gas flow rates in battery factories
5Metallurgical industry
Gas filling measurement in steel plants; Measurement of blast furnace gas in ironworks; Measurement of coke oven gas in coking plants; Measurement and control of heating furnace gas (blast furnace gas, coking gas, natural gas, etc.) in steel rolling mills; Control of gases such as hydrogen, oxygen, and nitrogen in heat treatment quenching furnaces, etc
6Pulp and paper industry
Gas measurement in wastewater treatment system; Smoke flow monitoring; Boiler recycling secondary/Three levels of air; Boiler gas and air supply measurement
7Food and pharmaceutical industry
The addition of fresh air during processing operations; CO2 treatment in breweries; The flow rate of hot air in the bottle sterilizer; Measurement of gas flow rate during thermal oxidation process; Ventilation system; Boiler inlet, exhaust gas, process control
8environment protection
Gas measurement during biogas utilization process; Measurement of chlorine gas during chlorine treatment process; Gas measurement in aeration tanks during sewage treatment process; Exhaust monitoring of chimney and flueSO2andNOXThe displacement
9Other industries
Factory compressed air measurement; Coal powder combustion process/Gas ratio control fuel; Control of Hot Gas Flow from Vertical Grinding Mill in Cement Industry
Product parameters
1Measurement range:0.5—100Nm/s（20℃，101.33KPa）
2Accuracy:±1.5%The reading is ±1.5%full scale
3Range ratio: Typically100：1(depending on the range of calibrated flow)
4Range of pipe diameter: 15mm～6000mm
5Scope of application:Suitable for various types of single or mixed gases. Containing dust, sand, moisture, and various corrosive gases. (Excluding acetylene gas)
6Environmental temperature range: - forty℃～+85℃； Humidity less than90%RH
7Temperature range of the medium: - forty℃～+100℃；-40℃～+200℃；-40℃～+450℃；-40℃～+510℃
8Sensor diameter: ф3、 ф2.5
9Insertion sensor probe diameter: ф19(Standard) ф16、 ф12
10Sensor material:316Stainless steel, Hastelloy, titanium
11Material of probe rod (protective cover):316Stainless steel (standard), Hastelloy alloy
12Bidirectional measurement of medium flow rate
13Analog output: Flow rate:4-20mADC,Temperature:4-20mADC,Maximum Load: one thousandΩ
14Accumulated pulse output
15Type in12Nonlinear correction of segments, built-in10Nonlinear correction of segments
16Communication: Serial port outputRS232/RS485
17Power supply:24VDC/600mA；220VAC/2W；
18Alarm:1－2Circuit relay output5A/220V、5A/30VDCEnter settings
19Large screenLCDDisplay: 7-digit instantaneous flow, 8-digit cumulative flow
20Process pressure: 1.6Mpa(Maximum)20MPa）
21Installation process form: Plug in type (card sleeve, card sleeve+ball valve, flange connection) suitable forDN80The above pipeline installation, pipeline type (flange, threaded connection) is suitable forDN15The above pipeline installation.
22Explosion proof grade: intrinsic safety type（iaⅡCT5）Explosion proof type（ExdⅡCT4）
23Protection level:IP65