● Proprietary traffic data model algorithm;Fuzzy theory control algorithm for temperature and humidity;
● High performance intelligent microprocessor and analog-to-digital/digital to analog conversion chip;
● Wide range ratio100∶1;Large caliber,Low flow rate,Pressure loss can be ignored;
● Direct measurement of mass flow rate,No need for temperature and pressure compensation;
● Low flow velocity measurement is very sensitive;
● Convenient design and selection,Easy to install and use;
● Suitable for measuring the flow rate of various single or mixed gases;
● Non measurable liquid or gas containing a large amount of water vapor,Steam cannot be measured.
2、 Application scenarios
●utility---Monitoring of electricity, gas, and water treatment
Gas in pipelines;general system;biogas;gas;natural gas;liquefied gas;Preheating air for boiler
●Oil and gas industry
energy exchange;Gas recovery from filling wells;Natural gas metering;Gas quality analysis;Leakage test;Natural gas measurement;Monitoring of Torch Gas
●Power industry
Gas measurement during gas distribution process in fuel system;Measurement of various gases in boilers and auxiliary systems;Gas measurement in gas furnace;Hydrogen measurement;Measurement of primary and secondary air in power plant blast furnaces
●Chemical industry
Smoke circulation monitoring;Gas flow measurement in sampling system;Gas flow measurement of induced draft fan;Measurement of Ammonia Flow in Fertilizer Plant;Various battery factories Gas flow measurement
●Metallurgical Industry
Gas filling measurement in steel plants;Measurement of blast furnace gas in ironworks;Measurement of Coke Oven Gas in Coking Plant;Heating furnace gas for steel rolling mill(Blast furnace gas, coking gas Natural gas, etc)Measurement Control;Control of gases such as hydrogen, oxygen, and nitrogen in heat treatment quenching furnaces, etc
●Pulp and paper industry
Measurement of gases in wastewater treatment systems;Smoke flow monitoring;Boiler recycling secondary/tertiary air;Measurement of gas and air supply for boilers
●Food and pharmaceutical industry
Addition of fresh air during processing operations;Carbon dioxide treatment in breweries;The flow rate of hot air in the bottle sterilizer;Hot Oxygen
Gas flow measurement during the chemical process;ventilation system;Boiler inlet, exhaust gas, process control
●environment protection
Gas measurement during biogas utilization process;Measurement of chlorine gas during chlorine gas treatment process;Gas measurement in aeration tank during sewage treatment process;Exhaust monitoring of chimney and flueSO2andNOXThe displacement
●Other 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
3、 Working principle
It is a flow meter based on the principle of thermal diffusion. When using fluid to flow through a heating object,The amount of heat lost by a heating object is proportional to the flow rate of the fluid. specifically,There are two standard grade sensors for this flowmeterRTD,One used as a heat source,One used to measure fluid temperature,When fluid flows through,The temperature difference between the two is nonlinearly related to the magnitude of the flow rate,This instrument can convert this relationship into a linear output for measuring flow signals.
There are two design methods for flow meters manufactured using the principle of thermal diffusion: one is:Based on the principle of constant temperature difference;The second is based on the principle of constant power. Regarding the common data model:P/△T=A+B(Q)NAmong them:P---Dissipated power,△T---Temperature difference between two sensors, Q---Mass Flow
measure, N---indexing, A、BIt is a coefficient related to the thermal properties of gases.
Principle of constant temperature difference:△Tremain unchanged,Dissipated powerPFlow rate of fluidQThe relationship increases exponentially.
● Constant power principle:Constant dissipated power,Temperature difference △TFlow rate of fluidQThe relationship of decreasing exponential function.
4、 Product Features
● Adopting highly stable patented technology platinumRTDsensor
● Adopting proprietary technology "balanced structure packaging",Self compensation of medium temperature
● proprietary algorithms,Can achieve high linearity, high repeatability, and high precision
● Wide range ratio100:1,Can be expanded according to user requirements
● Can achieve measurement of large pipe diameter and small flow rate,The minimum flow rate can be measured as low as zero,resolution0.1m/s
● No movable parts, vibration effects can be ignored
The requirements for straight pipe sections are not high5-10D
● Independent of the temperature and pressure of the medium
● Exclusive high-temperature algorithm,The medium temperature can reach+300℃
● Adopt high humidity algorithm,Realize high-precision measurement
● Input traffic signals12Point dynamic correction,built-in10Point correction
● Online dynamic correction of current/Voltage Output
Not sensitive to small particles such as dust
● Online uninterrupted loading and unloading,maintainable
5、 Product spectrum
enterprise standard |
Separation line |
model |
caliber |
Installation method |
Pipe Material |
Power supply mode |
signal output |
describe |
MK |
|
|
|
|
|
|
|
enterprise standard |
|
− |
|
|
|
|
|
|
meaningless |
|
010 |
|
|
|
|
|
Thermal gas mass flow meter |
|
|
XXX |
|
|
|
|
100showDN100 |
||
|
C |
|
|
|
plug-in(thread) |
|||
CF |
|
|
|
plug-in(flange) |
||||
F |
|
|
|
Flanged pipeline type |
||||
FW |
|
|
|
Pipeline welding type |
||||
|
B |
|
|
304stainless steel |
||||
L |
|
|
316Lstainless steel |
|||||
C |
|
|
20#carbon steel |
|||||
U |
|
|
Other materials |
|||||
|
1 |
|
AC220V |
|||||
2 |
|
DC24V |
||||||
|
1 |
4~20mA |
||||||
2 |
RS485 |
|||||||
MK |
− |
010 |
XXX |
C |
B |
1 |
1 |
Complete selection |