The glacial acetic acid quantitative dosing metering pump chemical additive automatic dosing and filling equipment adopts a mass metering method. The system consists of a quantitative metering control instrument, pipeline flow transmitter, temperature sensor, and other components. During liquid transportation, it collects flow signals and temperature change signals in a timely manner. The control instrument initially inputs the standard density of the liquid at 20°C, then synchronously converts the flow and temperature signals using conversion coefficients to calculate the mass in kilograms of the liquid. When the preset quantitative delivery amount is reached, it automatically stops the pump and closes the valve, achieving a quantitative mass metering accuracy of 0.2%. The instrument can also print the number of kilograms of liquid delivered in this operation.

During liquid transportation, the flow transmitter collects volume signals and transmits the data to the measurement and control instrument; the temperature sensor monitors temperature changes in real-time and sends the data to the measurement and control instrument. The measurement and control instrument performs synchronous calculations on the received volume and temperature signals using conversion coefficients to derive real-time mass data. When the preset delivery amount in kilograms is reached, it automatically stops the pump and closes the valve.

When external sales and filling are required, the glacial acetic acid quantitative dosing metering pump chemical additive automatic dosing and filling equipment can also be manually operated using a handheld filling gun for direct vehicle filling, eliminating the need for steps such as unloading barrels, tare weighing, filling, weighing, and loading. The system is equipped with various calibers and is widely used in applications such as tanker filling, transferring finished products to the warehouse in production workshops, and delivering raw materials to production workshops. The system's medium temperature range is divided into normal temperature (0~60°C) and high temperature (60~200°C). Based on the specific gravity of water, a DN40 caliber metering system can fill approximately 200 kg per minute when the pump flow rate reaches 12 m3/h, significantly saving time, labor, material resources, and barrel losses, while ensuring highly accurate metering. The system's metering accuracy is better than 0.2%.

Operation process of the glacial acetic acid quantitative dosing metering pump chemical additive automatic dosing and filling equipment: Taking 200 kg per barrel and needing to fill 20 barrels as an example:

1. Insert the filling head into the barrel.

2. Keyboard operation: 200 → Quantitative → 20 → Start (filling begins, and the pump automatically stops after reaching 200 kg).

3. Insert the filling head into another empty barrel and press Start again. Repeat until 20 barrels are filled, and the results are automatically printed.

4. Print format: 200--------- (net weight per barrel) 20--------- (number of barrels to be filled) 10000--------- (total net weight filled in this operation)