Application method and precautions of double glass reactor

Usage and precautions of double glass reaction kettle: double glass reaction kettle is designed with double glass Reaction medium can be put into the inner layer for stirring reaction, and different cold and heat sources (freezing liquid, hot water or hot oil) can be connected to the interlayer for cyclic 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 Detailed introduction: instructions for the use of double glass reaction kettle ● this instruction gives a detailed description of the device and the use of double glass reaction kettle ● operation error will cause accidents, shorten the service life of the device and reduce its performance Therefore, please read the manual carefully when using it Please give this manual to the end user of Zui ● please take good care of this manual for reference when necessary The manual is for reference, and the specific design shape is subject to the real object Safety precautions: the precautions must be strictly observed, otherwise personal injury or damage to the machine may occur ● before installation, use, maintenance and inspection, be sure to read all contents of this manual and use it correctly ● 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 3、 Installation of the instrument: (only for reaction kettles below 5L, and more than 5L shall be installed by special personnel) 1 After unpacking, check whether the main accessories of the machine are complete according to the packing list 2 Assemble the frame with stainless steel pipe and fixings as shown in the attached figure 3 Install the electrical box on the top of the right rear upright post, screw in the screws, 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 reaction kettle on the vertical rod slider, place the reaction kettle on the bracket, use the semicircle hoop to fix the neck of the kettle, insert the vertical rod slider, tighten the fixing screws after closing, and pay attention to the vertical 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 in the front of the middle is the thermowell port, the 34 × standard port in the back of the cap is the multi-functional standby port, the bottom is equipped with a discharge valve, and the upper and lower parts of the kettle are respectively the circulating 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 The glassware must be clean when installed 9 Press the fixed device of universal wheel to mix If the mixing is stable, the debugging is good 4、 Usage: 1 Check whether the power supply voltage is consistent with the specification provided on the nameplate of the machine 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 The flow of materials and the power of motor speed may produce resonance at a certain point Please change the motor speed 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 By using the mixing rod regulator, the mixing leaves can be 5cm up and down 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 All glass instruments of the reaction device are made of gg.17 low expansion coefficient and high temperature resistant borosilicate glass The user has prepared reaction bottle and other glass instruments Please confirm the quasi glass material to ensure safe use 8 The interlayer on the double glass reaction kettle is connected with the circulation port The hot oil can be used for heating reaction and the cooling liquid can be used for low temperature reaction If the steam is used for heating, it can not exceed 0.5k-1k (try not to use pressure steam for heating) 9 When the double glass reaction kettle is tested at low temperature, the discharge valve at the bottom will be frosted When the valve is used, it must be partially thawed to prevent the 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 5、 Maintenance notice 1 Before use, carefully check the instrument, whether the glass bottle is damaged, whether the interfaces are consistent, and take care of it 2 Wipe the joints with a soft cloth (instead of napkin), and then apply a little vacuum grease (the vacuum grease must be well covered after use to prevent the ash sand from entering.) 3 Each interface shall not be tightened too tightly It shall be loosened regularly to avoid long-term locking leading to connector seizure 4 First, turn on the power switch, and then let the machine run from slow to fast When the machine is stopped, make the machine stop, and then 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, it is necessary to use a soft cloth to clean all kinds of oil stains, stains and solvent left on the surface of the machine and keep it clean 7 After the machine is stopped, loosen the PTFE switches, and the PTFE piston will be deformed if it is still in working state for a long time 8 Clean the sealing ring regularly by removing the sealing ring, checking whether there is dirt on the shaft, wiping it with a soft cloth, then applying a little vacuum grease, and then 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 Original accessories must be purchased Using other accessories at will will cause fatal damage to the machine 11 When doing any repair or inspection to the machine, be sure to cut off the power supply and water source first.