New Upgrade：GD-9168A Petroleum Products Digital Vacuum Distillation Tester

Definition of Distillation range :

A liquid substance having a constant vapor pressure at a certain temperature. When the saturation vapor pressure and the external pressure is equal to the liquid surface and internal vaporization phenomenon, the temperature at this time is called the liquid at this pressure boiling point. The boiling point at standard atmospheric pressure is the standard boiling point. Petroleum products is a complex mixture of a variety of hydrocarbons and a small number of hydrocarbon derivatives, so there is no constant boiling point, its boiling point is a wide range of temperatures. Therefore, in order to grasp the composition of petroleum products, the oil in the specified conditions for distillation, from the initial distillation point to the final distillation point of this temperature range is called the distillation range.

Main structure and Functions:

⑴Vacuum pump: built-in vacuum pump

⑵Cooling fan: located next to the heating furnace,  automatically opens to cool the heating furnace after test

⑶Oil temperature sensor: used for measuring the temperature of oil sample in the distillationflask

⑷Distillation column assembly: vacuum jacket distillation column assembly for experimental distillation

⑸Oil vapor temperature sensor: plug the sealant into the top of the distillation flask to detect the temperature of the oil vapor

⑹Cold trap: built-in, semiconductor-cooled hydrazine  

⑺Collection bottle of the cold hydrazine residue: used to collect the residual liquid of cold hydrazine, the liquid can be taken out and weighed for further analysis

⑻LCD touch screen: 8 inch LCD color touch screen, man-machine interface

⑼Power switch: the main power switch, long press 5 seconds, the instrument will connect to the working power

⑽Sketch map: each interface function is shown on the right panel, refer to Fig.2

⑾Distillation flask: 500ml heat resistant distillation flask, put sample inside and put it on the heating furnace

⑿Heating furnace: electric heating furnace, used for heating sample, the heating power can be adjusted on the screen with an accuracy of 0.5%  

⒀Heating furnace lifting platform: up, down or stop is controlled by the button on the screen, with the limit protection

⒁Receptor lamp: installed under the receptor, easy to read the distillation volume

⒂Receptor: 200ml receptor, the drop chain is hanged inside to receive the distillate

⒃Clamp of the receptor: used to clip the receptor

⒄Window of the water level: show the water level in the tank.

Highlights of the instrument:

1. Built-in 8-inch color LCD touch screen, clear and simple interface, precise operation, easy to use.

2. The instrument automatically controls the test vacuum, ensuring high vacuum and high stability in the experimental process, with precise control.

3. The instrument has a built-in cold trap, adopting semiconductor refrigeration, rapid cooling, environmental protection and low noise.

4. The height of the heating furnace can be adjusted with the handle, and the heating power can be adjusted with the knob, which is clear and precise.

5. The software contains atmospheric pressure - reduced pressure conversion program, automatically converts the observed steam temperature to atmospheric equivalent temperature (AET).

6. The instrument automatically saves the experimental data and is equipped with a USB interface, which can store the experimental data or be used with an external printer.

7. At the end of the experiment, the cooling fan is automatically activated to quickly reduce the temperature of the furnace and flask temperature, shorten the waiting time.

8. With nitrogen interface, connect to the safety of the nitrogen protection system when needed.