**Double-Layer Glass Reactor for Chemical Reactions**
A double-layer glass reactor is a widely used piece of equipment in modern fine chemical, pharmaceutical, and research laboratories. It is designed to perform various experiments under different conditions such as constant speed, constant force, and temperature. This versatile device can carry out processes like concentration, distillation, retention, separation, and purification, making it an essential tool for teaching, experimentation, pilot testing, and production.
**Key Features:**
- **Electronic Stepless Speed Regulation:** The motor offers smooth speed control without sparks, ensuring safety and longevity. For units 30L and above, imported frequency converters are used.
- **High-Efficiency Condenser:** Ensures high recovery rates of solvents during distillation or evaporation.
- **High-Quality Glass Components:** Made from GG17 borosilicate glass, which has excellent thermal and chemical resistance.
- **Quick Discharge Valve:** Allows for fast and efficient solvent recovery.
- **Imported Electrical Components:** Main parts are sourced from reliable international suppliers to ensure performance and durability.
- **Corrosion-Resistant Construction:** The unit is made from high-quality stainless steel, aluminum alloy, and synthetic materials, offering resistance to corrosion and chemical damage.
- **Standardized Connections:** Designed for easy assembly and disassembly, improving user convenience.
- **Vacuum Gauge:** Enables precise control of vacuum levels, especially useful when working with low-boiling-point substances.
- **PTFE and Rubber Seals:** Provide excellent sealing performance, allowing the reactor to maintain a strong vacuum and resist various solvents.
**Installation Steps:**
1. Upon unpacking, check that all components listed on the packing list are present.
2. Assemble the stainless steel pipes and fixed parts according to the provided drawings.
3. Install the electrical box on the right rear pole and secure it with screws. Connect the seven-pin plug. Mount the vacuum gauge at the back and tighten the screws.
4. Adjust the height of the kettle bracket and fix it onto the pole slider. Place the kettle on the bracket and insert the pole into the corresponding slot. Tighten the fixing screws to ensure vertical alignment.
5. Secure the stirring rod to the motor's main shaft and pass it through the rotating bearing on the cover. Use a dedicated connector and adjust the motor position to ensure concentricity.
6. The pole's multi-purpose clamp allows for flexible adjustment of height and direction.
7. On the left side of the lid, install a 40# standard port for the reflux condenser. On the right, connect the feeding funnel via a 40# port. The front 24# port is for the thermometer, while the rear 34# port serves as a spare connection. The bottom has a discharge valve, and the lower and upper ports are for the circulating fluid inlet and outlet, respectively.
8. When installing glass components, clean them thoroughly and apply Vaseline to the interfaces to prevent sticking. Apply vacuum grease to ensure airtightness.
9. Once installed, test the stirrer to ensure stability and proper operation.
**Operating Procedures:**
1. Verify that the power supply voltage matches the specifications on the nameplate.
2. Plug in the power and turn on the inverter switch. Adjust the speed using the control knob.
3. If resonance occurs due to the material flow or motor speed, change the speed to avoid it.
4. After installing the stirring bar, manually rotate it to check for concentricity. If not aligned, loosen the clamp, then gradually increase the speed.
5. Adjust the stirring leaves up and down as needed, within a range of 5 cm.
6. If the kettle's seal performance deteriorates, inspect the rotary bearing inside the agitator sleeve.
7. Ensure that all glass components are made from GG17 borosilicate glass. Confirm the material before use to guarantee safe operation.
8. The outer layer of the glass kettle can be heated using hot oil, while cooling is achieved with coolant. If steam heating is required, do not exceed 0.5–1 K (avoid pressure steam).
9. During low-temperature operations, the bottom discharge valve may frost. Thaw it partially before use to prevent damage to the glass.
10. If particles are present in the solution, residual material may affect the PTFE piston’s airtightness. Clean the valve thoroughly after each use.
**Maintenance Tips:**
1. Inspect the reactor before use to ensure no damage to the glass or misalignment of interfaces.
2. Handle the equipment carefully, as it is a fragile product. Contact the supplier for repairs within warranty.
3. Avoid over-tightening PTFE switches to prevent damage to the glass.
4. Start the machine at a slow speed and gradually increase. Always turn off the power before stopping.
5. Loosen connections periodically to avoid long-term tightness causing damage.
6. After each use, wipe down the surface with a soft cloth to remove oils, stains, and solvent residues.
7. Regularly clean the seal ring by removing it, wiping the shaft with a soft cloth, applying vacuum grease, and reattaching it.
8. After shutdown, loosen the PTFE switches to prevent deformation of the piston.
9. Keep electrical components dry and avoid water exposure.
10. Only use original accessories to prevent damage to the system.
11. Always disconnect the power and water supply before performing any maintenance or inspection.
12. Return the equipment to the manufacturer for professional maintenance every three years.
13. Wipe all connections with a soft cloth and apply a small amount of vacuum grease. Cover the grease after use to prevent contamination.
**Troubleshooting Guide:**
| Problem | Possible Cause | Solution |
|-------|----------------|----------|
| Power indicator doesn't light | Poor power connection or blown fuse | Check the power supply or replace the fuse |
| Power on but no rotation | Shaft rust, motor failure, or loose 7-pin plug | Contact supplier, reconnect the plug |
| Vacuum loss | Cracked glass or faulty switch | Replace the glass or switch |
| No vacuum despite pressure | Worn seals or leaky connections | Replace the seal or check the connections |
| Intermittent vacuum | Loose connector or aging vacuum hose | Clean the vacuum gauge or replace the hose |
| Main shaft wobbles | Loose screws | Tighten the screws |
| Motor overheating | Overload or dirty contact points | Stop, check the shaft, clean the seal area, and apply vacuum grease |
| Speed display mismatch | Voltage instability | Contact the supplier |
| Enclosure charged | Cracked heating element | Consult a professional electrician |
This double-layer glass reactor is available in capacities of 50L, 30L, and 20L. The standard port configuration includes a 40# port on the left, a 40# oblique port on the right, a 34# spare port on the back, a 24# thermometer port on the front, and a 50# flat flange stirrer in the middle. The bottom discharge uses a 50# flat flange (note that some variation may occur, so always refer to the original specifications).
Guangzhou Fuerle Health Technology Co., Ltd , https://www.fuerlegroup.com