Coriolis mass flow meter is an instrument used to measure fluid mass flow, which uses the Coriolis effect to achieve measurement. The Coriolis effect means that when a fluid passes through a magnetic field, the electrons in the fluid will be deflected due to the influence of the magnetic field, resulting in a transverse potential difference, called the Coriolis potential.

Coriolis mass flow meters take advantage of this effect to measure the mass flow of a fluid. It consists of a tube and two magnets with a sensor inside the tube to measure the Coriolis potential. When the fluid passes through the pipeline, due to the influence of the magnetic field, the electrons in the fluid will be deflected, resulting in a transverse potential difference. The sensor can measure the magnitude of this potential difference, thereby calculating the mass flow rate of the fluid.

Coriolis mass flow meter has the advantages of high precision, good stability, and wide measurement range, and can be widely used in fluid mass flow measurement in chemical, petroleum, pharmaceutical, food and other industries.

Now, let's discuss the application advantages of Coriolis mass flow meter in liquid chlorine filling.

Liquid chlorine is a yellow-green transparent liquid with a strong pungent odor and corrosive properties. It is a very reactive substance that, although it does not ignite spontaneously, can promote combustion. Liquid chlorine is capable of reacting with many elements and compounds and can even cause fires and explosions when mixed with flammable gases. In order to ensure the safety of liquid chlorine, my country has formulated strict regulations on liquid chlorine containers and their filling, and has strengthened the supervision and inspection of fire protection, safety supervision and other departments during the transportation of liquid chlorine. Especially for excessive filling of liquid chlorine, my country has adopted quite severe punishment measures. Therefore, real-time supervision is required when filling liquid chlorine to avoid overfilling. Once overfilling is discovered, a lot of manpower, material and financial resources need to be invested in punishment and unloading, so measurement during the filling process of liquid chlorine becomes particularly important.

Below we will introduce in detail the application advantages of Coriolis mass flow meters in liquid chlorine filling, including the following aspects:

1.    The unique measurement method can directly measure the mass flow rate of the medium without temperature and pressure compensation, avoiding the problem of inaccurate measurement caused by compensation errors. Coriolis mass flow meter is a purely physical quantity measurement instrument, which is related to the physical properties of the medium, so it has high accuracy and stability.

2.    High precision and high stability. Because the Coriolis mass flow meter adopts advanced sensor technology and advanced electronic signal processing technology, it has high measurement accuracy and stability, and can work normally in various harsh working environments.

3.    Online temperature and density monitoring can be realized to prevent gasification. The Coriolis mass flow meter is not only a high-precision flow meter, but also can realize real-time online temperature and density monitoring of liquid chlorine, thus effectively preventing the vaporization of liquid chlorine.

4.    Debugging is simple and maintenance costs are low. The debugging process of the Coriolis mass flow meter is simple and fast, and only simple work such as zero calibration is required. In addition, because Coriolis mass flow meters have few wearing parts, maintenance and repair costs are low during normal use.

5.    Without any flow-blocking components, it has a long service life. The Coriolis mass flow meter adopts a smooth pipe structure without any flow-blocking components inside, so it has small pressure loss and long service life, ensuring long-term stable operation.

Regarding the use of Coriolis mass flow meters in liquid chlorine tank truck filling, we have the following more detailed suggestions:

1.All liquid chlorine transportation pipelines should be fully insulated to ensure the stable temperature of the medium during transportation to ensure the accuracy and accuracy of the flow meter.

2.The Coriolis mass flow meter should be installed far away from the filling outlet, especially not on the operating platform. Because in the early stage of liquid chlorine filling, due to the low pressure in the tank and the high flow rate of liquid chlorine, local vaporization will occur due to excessive local pressure loss at valves, flanges, etc. near the outlet, which will affect the normal operation of the mass flow meter. In addition, installation at this location will also introduce external vibration interference and increase measurement errors.

3.The Coriolis mass flow meter should be installed as close to the ground as possible, and both ends of the flow meter should be firmly supported on the ground. If the conditions are not met and the installation can only be carried out overhead, relatively stable support should be provided at both ends of the flow meter. Practice has proved that the normal operation of the flow meter is very important for this.

4.The switching speed of the filling control valve should be controlled within an appropriate range to maintain the pressure of the medium in the pipeline where the flow meter is located within a stable liquid range. When a manual valve is used, the reading of the pressure gauge of the pipe section can be manually observed to be within the allowable range; if automatic valve control is used, the pressure signal can be used to control the valve opening and closing speed.

5.When selecting a Coriolis mass flow meter, try to make the commonly used flow rate fall within the flow measurement range.1/2~2/3In order to reduce the measurement error caused by the excessive pressure in the tank causing the instantaneous flow rate to be too small in the later stage of the liquid chlorine filling process. In addition, the appropriate accuracy level and output signal type should be selected according to actual needs. 

The application advantages of Coriolis mass flow meters in liquid chlorine filling include unique measurement methods, high precision, high stability, online temperature and density monitoring, simple debugging, and low maintenance costs. The application of Coriolis mass flow meter can realize real-time monitoring and accurate measurement of liquid chlorine filling, thus ensuring the safety of liquid chlorine.