Hydrogen flowmeter

At present, the gas flow meters used in China have the problem of small range ratio, and the flow below the lower limit of the range is basically lost. However, this is unacceptable in some fields, especially in gas and other trade settlement situations. The hot gas mass flowmeter has successfully solved this problem.

Hydrogen flowmeterProduct Usage

This product is widely used in industries such as steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, and environmental protection. Can be done:

Measurement of gas flow rate in steel plants and coking plants

Boiler air flow rate, measuring secondary air volume

Measurement of smoke flow rate emitted from chimneys

Waterfall gas flow measurement in water treatment

Gas flow measurement during the production process of cement, cigarettes, and glass factories

Compressed air flow measurement

Measurement of gas flow rates for natural gas, coal gas, liquefied gas, torch gas, hydrogen, and other gases

Product Principle

Adopting the principle of thermal diffusion, thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions. Its typical sensing elements include two thermal resistors (platinum RTDs), one is a speed sensor and the other is a temperature sensor that automatically compensates for gas temperature changes. When two RTDs are placed in a medium, the velocity sensor is heated to a constant temperature above ambient temperature, while the other temperature sensor is used to sense the temperature of the medium. The mass flow rate of gas passing through the velocity sensor is calculated based on the heat transfer of the sensing element.

As the gas flow rate increases, the heat carried away by the medium also increases. Causing the temperature of the sensor to decrease accordingly. In order to maintain a constant temperature, it is necessary to increase the working current through the sensor, and the magnitude of this increase in current is proportional to the flow rate of the medium.

Hydrogen flowmeterCG-06 Application Example

1. Petrochemical industry

Application scenario: Torch gas emission monitoring

Product advantages: Wide range ratio, sensor is not easily clogged, can be plugged and cleaned online, suitable for a wide range of gases

2. Power industry

Application scenario: Measurement of air volume for boiler primary air, secondary air, and coal grinding air

Product advantages: Easy installation, no straight pipe requirements, low pressure loss, no need for temperature and pressure compensation, can be used under harsh conditions (such as dust, particles, severe wear, low pressure, etc. in the air)

3. Metallurgical industry

Application: Measurement of blast furnace gas and coke oven gas

Product advantages: Calibrated according to the actual composition of the medium, the component changes can be corrected, the sensor can be cleaned online, and the insertion length can be adjusted arbitrarily

4. Electronic industry

Application scenario: High purity gas mass flow measurement

Product advantages: No need for temperature and pressure compensation to directly measure mass flow rate. The sensing head is highly polished and can be used for trade settlement heating and air conditioning

Product advantages: The product has sensitive response, reliable operation, and no strict requirements for installing straight pipe sections

5. Water treatment industry

Application scenario: Measuring the air flow rate of an aeration tank

Product advantages: dirt and dust resistance, truly no pressure drop, easy on-site installation

6. Food industry

Application scenario: Inject an appropriate amount of gas into the reactor to control the process and quality

Product advantages: Sanitary grade 3A, high purity, all liquid contact surfaces made of stainless steel, wide range ratio