N15 SDLA020301021 Dual channel Condenser Tube Consumables and Accessories

Working principle and advantages (why "dual channel"?)

The core principle isReverse flow heat exchange.

• Reverse flow designCooling water frombottomEnter, fromtopflow out; And hot steam comes fromtopEnter the inner tube. The two flow in opposite directions.

  
  

• Advantages of dual channel：

• Large cooling areaThe cooling water fills the entire jacket and surrounds the inner tube, providing a very large heat exchange area.

• High condensation efficiencySuitable for condensation reflux or distillation of substances with high boiling points (such as above 60 ° C) and high steam content.

• Save waterUnder the same condensation effect, due to its high efficiency, the required water flow rate can be smaller than that of straight condenser tubes.

main purpose

1. Reflux reactionThis is its primary purpose. In organic synthesis, the reaction mixture is heated to boiling, and the resulting steam condenses in a condenser and drips back into the reaction vessel to prevent solvent and reagent loss and maintain the reaction system for a long time.

2. distillationUsed for distillation separation of liquids with high boiling points, as the condensing part of distillation equipment.

3. In situations where efficient condensation is requiredWhen conducting experiments using common organic solvents such as ethanol, acetone, benzene, and toluene (with boiling points typically between 80-150 ° C), a dual channel condenser tube is a reliable choice.

4. Precautions for use

5. water inlet direction：be sure toInlet at the bottom and outlet at the top（Down in, up out）. Reversing the connection will reduce efficiency and may cause the jacket to be filled with bubbles.

6. flow velocityIt should not be too large, as it can form a stable liquid flow and the outlet water temperature should be slightly hot. Excessive water pressure may cause the connection to detach.

7. Leak prevention inspectionBefore use, check if the water pipe connection is secure to prevent water leakage from damaging the experimental equipment or causing danger.

8. Prevent 'boiling' from rushing inIn the reflux device, if the reaction boils violently, it may cause uncondensed steam to rush out directly. This can be avoided by adjusting the heating temperature or using more efficient condenser tubes (such as spherical ones).

9. Cleaning and PreservationClean promptly after the experiment to prevent residue blockage or corrosion. After drying, store to avoid the formation of scale.