Encyclopedia knowledge of double glass reactor

The glass reaction kettle is divided into double glass reaction kettle and single glass reaction kettle The interlayer of double glass reaction kettle can provide high temperature reaction (Zui high temperature can reach 300 ℃); double glass reaction kettle can also do low temperature reaction (Zui low temperature can reach - 80 ℃); double glass reaction kettle can vacuumize and do negative pressure reaction And its unique design makes the test safer and more convenient The working principle of double glass reaction kettle double glass reaction kettle is to inject constant temperature (high or low temperature) hot solution medium or cooling medium into the interlayer of double glass reaction kettle to heat or cool the materials in the reaction kettle at constant temperature, and to provide stirring The material can react in the reactor and control the evaporation and reflux of the reaction solution After the reaction, the material can be discharged from the discharge port at the bottom of the reactor, which is very convenient for operation It is an ideal equipment for modern chemical small sample, medium sample experiment, biopharmaceutical and new material synthesis It can provide high-temperature reaction (equipped with corresponding circulating oil bath, Zui high temperature can reach 300 ℃); it can also do low-temperature reaction (equipped with corresponding low-temperature freezing liquid circulation system, Zui low temperature can reach - 80 ℃); it can be vacuumized to do vacuum reaction Moreover, its unique design makes the test safer and more convenient The main characteristics of double glass reaction kettle - double reaction kettle 1 Frequency control, AC induction motor Constant speed, no brush, no spark, safe and stable, can work continuously 2 The whole set of glass instrument is made of GG17 high borosilicate glass with good chemical and physical properties 3 The interface of glass interlayer can be heated by circulating hot oil, and low temperature reaction can be carried out by connecting freezing liquid 4 It can react at room temperature, and the reflected heat can be taken away quickly with tap water 5 The feeding port is equipped with flange port and polytetrafluoroethylene valve, and there is no dead angle in the container It is easy to disassemble and discharge solid materials 6 Four port reactor cover, extra large port design is easy to clean, standard port socket can be selected to assemble reflux, distillation synthesis device Double glass reactor - double glass reactor the double glass reactor is designed for double glass The inner layer can be put into reaction medium for stirring reaction, and the interlayer can be connected with different cold and heat sources (freezing liquid, hot water or hot oil) for circulating heating or cooling reaction Under the condition of constant temperature and closed glass reactor, stirring reaction can be carried out under normal pressure or negative pressure according to the use requirements, and reflux and distillation of reaction solution can be done It is an ideal pilot plant and production equipment for modern fine chemical plants, biopharmaceuticals and new material synthesis Double glass reaction kettle - instructions for the use of double glass reaction kettle ● before installation, use, maintenance and inspection, please read all contents of this manual carefully to ensure correct use ● the power supply voltage must be consistent with that specified in this instrument ● no load operation is not suitable for high-speed operation ● the service life of the electrical box is greatly affected by the surrounding temperature and humidity Please keep the speed and motor dry ● install the machine first and then wire and power it up by a professional electrician The ground terminal must be grounded High temperature bath must be connected with air switch ● within 5 minutes after the power supply is cut off, electric shock may still occur due to the discharge of frequency converter or capacitor ● pay attention to the impact damage of hard objects (watches, rings, belt buckles, etc.) on the glass during operation ● when connecting the vacuum pipe and water pipe, be careful to avoid the injury to human body caused by breaking the glass too hard ● when using high-temperature circulating oil bath, pay attention to the harm of high temperature to human body We suggest using heat-transfer oil (dimethylsilicone oil, with kinematic viscosity of 100) which is less harmful to human body as solvent In particular, when circulating at high temperature, the circulating pump should be turned on first to let the heat-conducting solvent circulate, and then the temperature will rise slowly Double glass reaction kettle - Installation of instruments (only for reaction kettle below 5L, with special personnel for installation above 5L) 1 after unpacking, check whether the main accessories of the machine are complete according to the packing list 2 Assemble the stainless steel pipe and fixed parts as shown in the attached figure 3 Install the electrical box on the top of the right rear upright post, screw in the screw, and insert the seven core plug The vacuum gauge is installed at the left rear end, and the screw can be tightened 4 According to the use height, fix the round bracket of the kettle on the vertical rod slider, place the kettle on the bracket, use the semicircle type hoop to fix the neck of the kettle and insert it into the vertical rod slider, tighten the fixing screws after closing, and pay attention to the perpendicularity of the main body of the reaction kettle during installation 5 The stir bar is fixed on the gear ring chuck of the main shaft of the motor The stir bar passes through the middle of the cover to rotate the bearing, and tightens the special connector, then adjusts the position of the motor, and concentrates on the concentricity of the vertical 6 The slide block on the vertical bar is a stainless steel multi-purpose clamp for fixing and adjusting different directions and heights 7 The 40 × standard port on the left side of the bottle cap is inserted with a snake type reflux condenser, the 40 × standard port on the right side is the feeding port connected with a constant pressure funnel, the 24 × standard port on the front of the middle part is the thermowell port, the 34 × standard port on the back of the cap is the multi-functional standby port, the bottom part is equipped with a discharge valve, and the upper and lower parts of the kettle are respectively the circulation liquid inlet and outlet The lower port is connected with the circulating liquid inlet and the upper port is connected with the circulating liquid return port 8 When installing the glass instrument, it must be clean, and each interface shall be coated with vaseline to prevent the glass from locking, and then coated with vacuum grease to prevent air leakage 9 Press the fixed device of universal wheel to mix If the mixing is stable, it means that the debugging is good Double glass reactor - use method 1 Check whether the power supply voltage is consistent with the specification provided on the machine nameplate 2 Plug in the power plug, turn on the power switch on the frequency converter, and use the speed control knob to select the appropriate speed 3 When the flow of materials and the power of the motor speed are at a certain point, resonance may occur Please change the speed of the motor to avoid resonance 4 After the mixing rod is installed, it must be rotated by hand, and pay attention to whether the concentricity is good If the concentricity is not good, loosen the re clamp, turn on the power after the clamp is right, and adjust gradually from slow to fast 5 Use the mixing rod regulator to make the mixing leaves up and down 5cm as required 6 If the sealing performance of the kettle is found to be poor, please check the rotating bearing in the agitator sleeve 7 The glass instruments of this reaction device are all made of gg.17 low expansion coefficient and high temperature resistant borosilicate glass The user provides reaction bottle and other glass instruments by himself Please confirm the quasi glass material to ensure safe use 8 The interlayer on the glass kettle is externally connected with the circulation port The hot oil can be used for heating reaction and the coolant can be used for low-temperature reaction If steam heating is used, it can not exceed 0.5k-1k (pressure steam heating shall not be used as far as possible) 9 When testing at low temperature, the discharge valve at the bottom will be frosted When using the valve, it must be partially defrosted to prevent glass from being broken 10 If there are particles in the solution in use, it is possible to deposit residues on the polytetrafluoroethylene piston of the valve when discharging When reusing, the air tightness will be affected It is necessary to clean and reuse after discharging each time Double glass reaction kettle - maintenance instructions 1 Before use, carefully check the instrument, whether the glass bottle is damaged, whether the interfaces are consistent, and pay attention to handle with care 2 Wipe each interface with soft cloth (instead of napkin), and then apply a little vacuum grease (the vacuum grease must be covered after use to prevent the lime sand from entering.) 3 Each interface shall not be tightened too tightly It is necessary to loosen and activate regularly to avoid long-term locking leading to connector seizure 4 Turn on the power switch first, and then let the machine run from slow to fast When the machine is stopped, turn off the switch 5 The polytetrafluoroethylene switches at all places shall not be over tightened, which is easy to damage the glass 6 After each use, all kinds of oil stains, stains and solvent remaining on the surface of the machine must be wiped with a soft cloth to keep it clean 7 After the machine is stopped, loosen the polytetrafluoroethylene switches, which will deform the polytetrafluoroethylene piston if it is still in the working state for a long time 8 Clean the sealing ring regularly by taking off the sealing ring, checking whether there is dirt on the shaft, wiping it with a soft cloth, then applying a little vacuum grease and refitting it to keep the shaft and the sealing ring smooth 9 The electrical part shall not be allowed to enter into water, and shall not be damped 10 The original accessories must be purchased Using other accessories at will will will cause fatal damage to the machine 11 When making any repair or inspection to the machine, it is necessary to cut off the power supply and water source first Note: This equipment belongs to fragile products Please handle it with care when using The damage of fragile products is not covered by our warranty If the customer needs, we need to charge the corresponding cost Double glass reaction kettle - simple troubleshooting 1 Turn on the power switch, the indicator light is not on If the external power supply is not connected or in poor contact, please check the power supply and socket by a professional electrician 2 If the fuse tube is short circuited, turn the power switch to the off position, and then replace the fuse tube 3 The power indicator is on, but does not rotate The rotating shaft is rusted and out of service The seven core plug is not connected to the motor and electrical box of the supplier due to failure Reconnect the seven core plug 4 The vacuum disappears suddenly, the glass is cracked, and the switch is damaged Check the glass parts and replace the switch 5 There is vacuum, but the sealing ring is not worn If the vacuum switch leaks, please replace the sealing ring and switch 6 Sometimes there is no dirt during vacuum, and the dirt connector on the steel shaft is loose Please clean the dirt and check the vacuum gauge and vacuum pump 7 The vacuum hose is aging, please replace it 8 The spindle of the main engine is loose left and right, and the top screw is loose and tightened 10 If the temperature of the motor is too high (it is normal to add 40 ℃ to room temperature), stop the motor under overload, turn the shaft by hand, check whether it is heavy, remove the dirt on the contact part between the sealing ring and the glass shaft, and apply vacuum grease 11 The speed display is inconsistent with the actual situation, the voltage is unstable, there is error in itself, and the supplier 12 The shell is electrified, and the heating pipe has cracks and water Please check by a professional electrician.