Fully automatic distillerBy integrating heating, condensation, collection, and intelligent control technologies, efficient separation and purification of liquid mixtures can be achieved. The core principle can be summarized as a three-stage collaborative mechanism of "heating vaporization condensation liquefaction intelligent collection", combined with precision sensors and automation algorithms to ensure experimental accuracy and repeatability.
1、 Heating vaporization: precise temperature control to avoid sample decomposition
Efficient ceramic far-infrared heating technology
By using infrared radiation to directly heat the distillation flask, the thermal efficiency is increased by 30% compared to traditional electric heating tubes, and the heating uniformity reaches ± 1 ℃, avoiding the explosion caused by local overheating. For example, in the distillation of petroleum products, the ethanol collection temperature can be precisely controlled to 78.5 ℃, meeting the ASTM D86 standard.
PID temperature control algorithm
Real time adjustment of heating power to ensure temperature fluctuations of ≤± 0.1 ℃. When the temperature approaches the boiling point, the algorithm automatically reduces the power output to prevent insufficient vaporization of the sample due to overheating decomposition or cold spots. For example, in volatile phenol detection, temperature fluctuations need to be controlled within ± 0.5 ℃, otherwise it will cause oxidation of phenolic substances and affect the detection results.
Explosion proof boiling design
Built in explosion-proof boiling plate, which suppresses severe boiling by absorbing bubble energy; Simultaneously supporting the addition of zeolite or magnetic stirring to further reduce the risk of explosion and boiling. For example, in the distillation of saline wastewater, salt crystallization can easily cause explosive boiling. Explosion proof boiling plates can effectively absorb the impact energy and ensure experimental safety.
2、 Condensation liquefaction: efficient heat exchange, reducing steam escape
Dual circulation cooling water system
The condenser adopts high thermal conductivity stainless steel or glass tube walls, combined with adjustable condensation temperature (5-30 ℃), to meet the condensation needs of samples with different boiling points. For example, low boiling point organic compounds (such as ether, boiling point 34.6 ℃) require low-temperature condensation, while high boiling point substances (such as phenol, boiling point 181.8 ℃) require higher condensation temperatures to prevent pipeline blockage.
Optimization of channel structure
The internal design of the condenser features a spiral flow channel, increasing the contact area between steam and cooling water, resulting in a condensation efficiency of over 95%. For example, in ethanol distillation, the optimized flow channel can shorten the condensation time from 3 minutes to 1.5 minutes while reducing the amount of steam escape.
Inner wall polishing treatment
The inner wall of the condenser tube is polished with a surface roughness Ra ≤ 0.4 μ m to reduce droplet adhesion and ensure smooth flow of condensate into the receiving bottle. For example, in ammonia nitrogen detection, droplet adhesion can cause ammonia gas to escape, affecting detection accuracy. Polishing treatment can reduce such errors to less than 0.1%.
3、 Intelligent collection: dual endpoint control to ensure experimental accuracy
Real time monitoring of weighing sensors
A high-precision weighing sensor (with an accuracy of ± 0.1g) is equipped below the receiving bottle to monitor real-time changes in the quality of the distillate. When the preset value is reached (such as 100mL distillate corresponding to 100g mass increment), the control system automatically cuts off the heating power and closes the condensate passage through the anti backflow solenoid valve.
Redundant protection of fiber optic liquid level sensor
As the second safeguard, the fiber optic liquid level sensor monitors the liquid level height inside the receiving bottle. When the liquid level approaches the bottle mouth, the system automatically stops distillation to prevent liquid overflow. For example, in COD detection, the volume of distillate needs to be accurate to ± 1mL, and the dual sensor design can control the error within ± 0.5mL.
Time+weight dual endpoint control mode
Users can simultaneously set the distillation time and distillate volume, and the instrument will automatically stop running when either condition is met. For example, in long-term distillation experiments (such as 24-hour continuous operation), time control can prevent instrument overload; In rapid distillation (such as completing in 10 minutes), weight control is more efficient.
4、 Intelligent control: full process automation, improving experimental efficiency
7-inch touch screen integrated with 18 national standard methods
Support one click calling of standard methods such as GB/T 6536 (Distillation of Petroleum Products) and HJ 503-2009 (Detection of Volatile Phenols in Water Quality), allowing users to start experiments directly without manually setting parameters.
Customize 1000 sets of distillation schemes
Users can customize parameters such as temperature, time, and condensate flow rate according to their experimental needs and store them as independent solutions. For example, in the detection of food alcohol, the "beer distillation scheme" (temperature 78.3 ℃, time 15 minutes) and the "Baijiu distillation scheme" (temperature 78.5 ℃, time 20 minutes) can be stored for convenient and rapid use.
Real time data curve display and export
During the distillation process, the system records real-time data such as temperature, weight, and time, and generates a curve graph. After the experiment is completed, users can export the data to their computer via USB or Wi Fi to generate an experimental report that complies with the ISO/IEC 17025 standard.
5、 Modular design: multi-channel independent control to enhance throughput
6-hole single control module
Supports independent operation of 6 distillation channels, each channel can be individually set with parameters such as temperature and time, without interfering with each other. For example, in environmental monitoring, COD detection can be performed on 6 water samples simultaneously, resulting in a 60% increase in single channel flux and an increase in daily sample processing from 50 to 80.
Automatic cleaning function
After distillation, the instrument can automatically extract pure water to clean the pipeline, reducing manual operation time. For example, in ammonia nitrogen detection, the cleaning function can reduce the residual ammonia concentration in the pipeline to below 0.1mg/L, avoiding cross contamination.
Remote OTA upgrade
Through 4G/Wi Fi modules, manufacturers can remotely push firmware updates, optimize control algorithms, or add experimental methods. For example, in 2024, a certain brand upgraded its temperature control accuracy from ± 0.2 ℃ to ± 0.1 ℃ through OTA, and users can complete the upgrade without returning to the factory.