Thin film distillation technology can achieve precise purification and is a green separation technology for thermally sensitive materials,Laboratory membrane distillation deviceWidely used in industries such as food, spices, and fine chemicals. The laboratory membrane distillation device can be used as a reboiler combined with a distillation column to achieve thermosensitive and component separation with boiling points close to each other.
According to the separation requirements, the feed for the bottom thin film evaporator, the feed for the middle of the tower, and the feed for the top of the tower can be selected.
The reflux ratio controller is based on electromagnetic principles and can accurately measure reflux and extraction time.
The evaporation area can be selected, and the distillation column form, specification, and length can be selected. The inlet and outlet can be manually or automatically operated by a gear pump.
The common problems and solutions of laboratory membrane distillation equipment are as follows:
1、 Liquid flooding phenomenon
Reason: Excessive gas-liquid phase load, blocked downcomer, excessive heating or freezing blockage.
Handling:
Adjust the gas-liquid phase load and reduce the heating amount.
If it is frozen blockage, inject thawing agent or stop for maintenance.
When there is a blockage caused by dirt, it is necessary to reduce the load during operation or clean.
2、 Heating malfunction
Steam heating issue: Check pressure, non condensable gas or condensate discharge.
Reboiler malfunction: Check for leaks, abnormal liquid levels, or blockages.
3、 Pump cannot load material
Reflux pump: Check the filter, liquid level, and valve opening.
Feed pump: Insufficient pre cooling leads to vaporization requiring cooling.
4、 Abnormal tower pressure
Ultra high: Increase exhaust volume and reduce heating.
Pressure difference rise: segmented pressure measurement to determine blockage or flooding.