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Small knowledge of glass reactors

Release Time:

2023-02-14

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The glass reactor is mainly used for testing equipment.

 

The reaction solvent can be placed in the inner layer of the glass reactor for stirring reaction, and the interlayer is circulated through the cold and heat source. The interlayer of the glass reactor can be used for high temperature reaction (the highest temperature can reach 300 ℃); the glass reactor can also be used for low temperature reaction (the lowest temperature can be reach -80°C); the glass reactor can be evacuated for negative pressure reaction. And its unique design makes the experiment safer and more convenient. The glass reactor is a kind of equipment that adopts advanced interlayer cooling cycle technology to heat the material to the temperature of the glass reactor cavity, and at the same time vacuumize the cavity to make the material expand or contract when heated.


Simple and fast operation:

 

1. According to user requirements, manual control stirring can be selected;
2. There is no contact between the stirring shaft and the inside of the kettle to avoid damage due to friction;
3. The kettle body adopts interlayer cooling technology to avoid mechanical failure caused by overheating of the inner cavity and stirring shaft caused by heating;
4. With safety protection device (overheat protection device, over temperature protection device, etc.);
5. The kettle body and the jacket (inside the kettle) have good sealing performance, do not contain organic solvents, and are safe and reliable to use;
6. Equipped with a vacuum gauge and a vacuum valve, it can be used for vacuuming or negative pressure response.
The glass reactor is a container of the medium in the kettle made of glass, usually with a double-layer structure. It has the characteristics of strong corrosion resistance, high strength and high pressure bearing. It is widely used in chemical, pharmaceutical, material and other fields for laboratory and production pilot scale analysis and research work.
Suitable for chemical elemental analysis (liquid phase) and biochemical tests.


Working principle of glass reactor:

 

The glass reactor mainly uses its double-layer glass characteristics. We can place the reaction material (somewhat called the reaction solvent) in the middle interlayer, and carry out the stirring reaction under normal pressure or negative pressure. The glass reactor passes through the double-layer reaction. The interlayer of the kettle is injected with a constant temperature (high or low temperature) hot solution or cooling liquid to heat or cool the materials in the reaction kettle at a constant temperature, and can provide stirring. In this way, the medium in the interlayer of the glass reactor (for example: refrigerated liquid, heating water or heating oil, etc.) can be heated or cooled by stirring for a cyclic reaction. It is widely used as an ideal device in modern biochemical new material synthesis experiments.

Product features of glass reactor:

 

Different cold and hot circulating liquids (hot water/hot oil/refrigerated liquid) can be passed into the interlayer of the glass reactor. In the sealed glass container, the reactants are stirred and reacted under normal pressure or negative pressure. The fully transparent reaction process is clear at a glance. It is an ideal experimental pilot equipment for modern biopharmaceuticals, fine chemicals, and new material synthesis.


1. Adopt new high borosilicate glass (GG-17) reaction experiment equipment with physical and chemical properties. 2. The unique equipment of this product, the stainless steel frame structure of the whole machine (the connecting part of the three-way and four-way is exquisitely connected), compact and firm, not out of shape, and easy to move.
3. The unique frequency conversion speed regulation allows you to use high and low speeds, ideally and accurately, and can be equipped with a full explosion-proof system.
4. The kettle cavity and jacket are designed without dead ends, and the kettle lid is specially made for solid feeding, which is more convenient for cleaning without disassembly. The lower material is designed for the user, and it is more ideal to release concentrated liquid and a small amount of solid liquid material.
5. The heating (cooling) solution in the interlayer of the reaction kettle can be completely removed after the reaction is completed, without liquid accumulation.
6. The scientific concept of the whole machine is beautiful and practical, and it is the leading domestic counterpart.


Technology of glass reactor:

 

1. The material used in the glass reactor (GG17 high borosilicate glass) has excellent material and chemical properties. In the stirring process of frequency conversion speed regulation, the operation will be relatively stable, and no sparks will be generated even if the torque is large.
2. In addition, the components are sealed with PTFE, which can maintain a good vacuum degree (generally around -0.095mpa) among similar products in the market, and maintain high-precision sealing under working conditions. And there is also a debris collection tank.
3. Alloy steel mechanical seal, PTFE connection port, high-precision sealing in working condition.
4. Pt100 sensor probe, high temperature measurement accuracy, small error, effectively improving work efficiency
5. PTFE discharge valve, movable interface, complete and quick discharge.
6. After the reaction is completed, the cooling or heating solution in the interlayer of the glass reactor can be completely drained without liquid accumulation
7. The overall stainless steel column mobile frame structure, five-port reaction kettle cover, a full set of glass for reflux, liquid addition, and temperature measurement.
8. Strong torque, no noise. Adopted Japanese technology AC gear reduction motor
9. The double PTFE stirring paddle of the glass reactor is suitable for stirring and mixing of low to high viscosity liquids.
Maintenance instructions for glass reactors:
1. Check the instrument carefully before use, whether the glass bottle is damaged, whether the interfaces are consistent, and handle with care.
2. Wipe each interface with a soft cloth (you can replace it with a napkin), and then apply a little vacuum grease. (Vacuum grease must be covered after use to prevent lime sand from entering.)
3. The interfaces of the glass reactor should not be screwed too tightly, and should be loosened regularly to avoid long-term locking and causing the connectors to bite dead.
4. Turn on the power switch first, and then let the machine run from slow to fast. When stopping, make the machine stop, and then turn off the switch.
5. The PTFE switches everywhere should not be tightened too hard, as it is easy to damage the glass.
6. After each use, you must use a soft cloth to wipe off all kinds of oil stains, stains, and solvent residues left on the surface of the machine, and keep it clean.
7. Unscrew each PTFE switch after stopping the machine, and the PTFE piston will be deformed if it is still in the working state for a long time.
8. Clean the sealing ring regularly. The method is: take off the sealing ring, check whether there is dirt on the shaft, wipe it clean with a soft cloth, then apply a little vacuum grease, and reinstall it to keep the shaft and the sealing ring smooth.
9. The electrical part must not enter the water, and it is strictly forbidden to be damp.
10. It is necessary to purchase authentic accessories from the original factory. Random use of other accessories will cause fatal damage to the machine.
11. When doing any repair or inspection on the glass reactor, be sure to cut off the power supply and water source first.


Precautions for glass reactors:

 

1. All glass parts should be cleaned before installation.
2. Each standard port, ball mill port and sealing surface should be coated with a small amount of vacuum silicone grease to increase air tightness.
3. Before installation, use, maintenance, and inspection, please be sure to read all the contents of this manual to ensure correct use. 4. The power supply voltage must be consistent with that specified by the instrument.
5. It is not suitable for high-speed operation without load.
6. The life of the electrical box is greatly affected by the ambient temperature and humidity. Please keep the governor and motor dry.
7. Install the equipment of the reactor first, and then operate and use the equipment by professional operators.

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