Working Principle of Lifting Temperature-Controlled Reaction Kettle
The working principle of a lift-type temperature-controlled reactor (such as a tabletop lift-type reactor, a quick-opening lift-type reactor, etc.) mainly involved height adjustment, temperature control, and so on. In terms of height adjustment, the height and angle of the reactor were adjusted by the electronic control system to adapt to different reaction conditions and operational requirements. In terms of temperature control, different types of reactors had different temperature control methods. The first method was to use a heating/cooling system, such as a temperature-controlled oil heater for the reaction kettle. There were generally two ways to cool the reaction kettle. One was to use water to heat the medium to cool down. The equipment was connected to the cooling water circulation port. When it received the cooling command, the cooling electromagnetic valve would automatically open to circulate the cooling water to directly cool the reaction kettle to achieve a rapid cooling effect. Another method of temperature control was similar to a glass reactor. Through the double-layered reactor, a constant temperature (high or low temperature) hot solution or cooling liquid was injected to heat or cool the materials in the reactor at a constant temperature. It could also provide agitation, so that the medium in the reactor (such as freezing liquid, heating water, or heating oil) could be stirred to perform a circular reaction to achieve heating or cooling. There was also the water bath temperature control method, which placed the reaction kettle in the water bath, and used the heat capacity and heat transfer effect of the water bath to control the temperature of the reaction kettle through the principle of heat balance. The oil bath temperature control method placed the reaction kettle in the hot oil bath, and used the advantages of the high thermal conductivity and heat capacity of the hot oil to realize the temperature control of the reaction kettle. The kettle body was usually made of corrosion-resistant materials, such as stainless steel or special alloys, which could withstand corrosive substances such as strong acid and strong base to ensure the normal operation of the reaction. At the same time, during the reaction process, the stirrers could be used to mix and disperse the reaction materials to ensure the equality of the reaction. Read more exciting novels for free
How to use the explosion-proof temperature controller for the reaction kettle
The usage of the explosion-proof temperature controller for the reactor is as follows: 1. ** Check before use ** - After opening the box, the appearance of the control instrument was checked to see if it was damaged or rusted due to transportation and storage problems. He opened the legs to check if the control instrument was level and if the movable parts were flexible. - According to the name of the connection on the back panel of the control instrument, connect the power supply, heater, motor power supply, temperature sensor, speed sensor and ground wire of the control instrument according to the terminal identification. After checking that there is no error, connect the power supply. 2. ** Temperature-adjustment ** - Follow the instructions of the thermometer. For the first use, it is recommended to set the program and directly use the self-tuning method to determine the P, I, and D parameters through the instrument self-tuning. However, the constant temperature time for the first use is relatively long, and the more accurate P, I, and D parameters can only be determined after three settings are completed. After that, if the same parameters were used, there was no need to start the self-tuning function again, and the temperature could be controlled more accurately. 3. ** Speed adjustment (if any)** - The stirring speed of the motor can be adjusted by the up and down keys of the speed governor. The required stirring speed can be achieved by referring to the speed displayed on the stirring speed display. 4. ** Running Operation ** - Carefully check if there are any abnormalities before normal operation. Do not open the back door during operation to prevent electric shock. - The measuring instruments should be regularly aligned to ensure accurate and reliable operation. The working environment of the equipment must meet the safety technical requirements. - For instruments that have been left unused for a long time and instruments that have been working in a humid environment for a long time, the overall insulation resistance should be measured irregularly. The overall resistance should not be less than 10 Mum. 5. ** Equipment stop operation (no mention of special stop operation for explosion-proof temperature controller of reaction kettle, refer to the general requirements for relevant equipment stop)** - First, turn off the heating or cooling system, then turn off the equipment's power supply, and finally deal with the equipment's water source and air source (if any). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the principle of the high temperature reaction between water and aluminum tubes?
When aluminum is in a high temperature state (for example, when aluminum is a high-temperature molten aluminum or a high-temperature melt), it comes into contact with water. Water will be decomposed into hydrogen and oxygen, and aluminum will combine with the hydrogen ions in the water to form aluminum dioxide. The reaction equation is 2AI +6H <2> O = 2AI (OR)+3H <2>. In addition, water decomposed into hydrogen and oxygen at high temperatures. When the hydrogen and oxygen reached the critical point of mixing, an explosion could occur. At the same time, aluminum had a strong chemical affinity for oxygen, and a large amount of high-temperature aluminum and oxygen could instantly combine to cause a big explosion. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Industrial reaction kettle
Industrial reactors can be divided into three types according to their structural forms: open (open), closed (closed), and semi-open and semi-closed; according to the heat transfer method, they can be divided into external circulation type, internal circulation type, and direct flow type; according to the heating medium, they can be divided into water-cooled, oil-cooled, and air-cooled jacket heating types. The materials of the reactor were carbon steel, stainless steel, and so on. The process includes putting the materials into the stirring tank for heating and stirring. After reaching the set temperature, close the feeding valve and then open the discharge valve. The materials transfer heat to the cooling tank through the heat exchange and then enter the splitter. The magnetic stirring rod in the splitter is used to clarify the liquid phase. After the liquid phase is filtered, it enters the measuring tank and then is recycled through the return pipe. The concentrated solid particles are processed. When cleaning, open the discharge valve and wash with a high-pressure pump. After checking that there is no problem, it can be put into use. If you need more information about industrial reactors, you can further consult the relevant information. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Principle of Allergen Reaction
Allergy reactions are caused by some people being overly sensitive to the substances (allergens) they come into contact with. When a sensitive individual comes into contact with a foreign, harmless substance (an allergy), the immune system will overreact and the body will produce a type of protein specific to the allergy. These IgE-bound to the high-affinity receptor on mast cells and basophils. When the allergy entered the body again and met with these bound molecules, the form of the immune receptor would change from a dimmer to a monolith. This change in form would lead to the exposure of the protein sites of the relevant signaling pathways, which would activate the downstream signaling pathways, causing allergic reactions such as vasodilation and bronchiectomy. In severe cases, it could cause allergic shock. In an allergic reaction, the affected organs or tissues will be infiltrated by a large number of inflammatory cells (especially those that are not activated), and a high concentration of IgE will appear in the serum. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The working temperature of the lens
Different types of lenses had different operating temperatures. The lowest working temperature of a typical lens was around-10 degrees Celsius. The working temperature range of the surveillance camera was usually between-10 ° C and 50 ° C. The Fuji GTF medium frame lens barrel has 12 sealing points, the Fuji GF35 - 70mmF4.5 - 5.6WD lens and the XF23mmF1.4 lens have a minimum working temperature of-10 ° C. The working temperature range of the aerial camera was-40 ° C to 85 ° C. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Zhoushan reaction kettle electric heating
Zhoushan electric heating heat-conducting oil furnace has been applied in the production of oil resin. In industrial production, the reaction kettle electric heating heat-conducting oil furnace had many advantages. For example, its heating system was a closed circulation system, which could quickly heat up and cool down the reaction kettle. It could be customized to a very small volume and was easy to install. It was suitable for medical research occasions. It could realize special control methods such as cascaded control to stabilize the temperature. It could also realize automatic control through remote communication or programming with a PC to provide safety for production. It also played a positive role in reducing the probability of defective products and providing complex temperature control process design solutions. Its power consumption mainly depends on the heating part and the circulating pump, and the power consumption can be reduced through measures such as pipe insulation. In the relevant application scenarios of Zhoushan, the electric heating oil furnace of the reactor could also play a similar role. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction kettle reconstruction construction plan
The following are some common construction plans for the reactor: ** I. Electromagnetic heating modification plan for the reactor ** 1. ** Power calculation and selection ** - First of all, the known conditions must be clear, such as the material, size (diameter, height, thickness, etc.), weight, effective volume, material weight, material mixing heat, heating temperature requirements, time requirements, etc. - According to the heat calculation formula,[Q = cm/Delta t+km](where [c] is the specific heat capacity,[m] is the mass, and [Delta t] is the temperature difference), the specific heat capacity [J/(KG* ° C)], the temperature difference [° C], and the mass [KG] are substituted into the formula and divided by the time [S] to obtain the power [W]. - For example, the known atmospheric pressure reactor, material 304, the external dimensions of the kettle body are 2 meters in diameter * 3 meters in height (8mm in thickness), the weight is about 1000kg, the effective volume is 7 m3, the material weight is 7 tons, the reaction material is a certain liquid material mixed specific heat according to the requirements of 4200J/kg* ° C, and it is required to be heated from 20 ° C to 280 ° C within 3 hours. After calculating the theoretical power, it is necessary to consider the loss (generally increase the loss by 20%) to determine the actual matching power. For example, the theoretical power of the above example is 708KW, and the actual matching is 708KW *1.2 = 850KW. Seven sets of 120KW electromagnetic heater can be used for parallel heating. 2. ** Steps to design the plan ** - Understand the original structure and working principle of the reactor, including the size, shape, material, working temperature and other parameters of the reactor. Then, according to the actual situation and needs of the reactor, the electromagnetic heating scheme was designed. ** II. Upgrade plan for the support and foam plug at the bottom of the reactor ** 1. ** Selection of Upgrade Materials ** - High-quality steel was used to ensure the bearing capacity and corrosion resistance of the lower support and foam plug. 2. ** Pre-construction preparation ** - The original lower support and foam plug were first cleaned, and then disassembled to facilitate the installation of new materials. 3. ** installation process ** - After determining the size of the new material, he drilled a hole and installed it gently. Then, he adjusted the reaction kettle to ensure that the new support and foam plug were stable. ** 3. Cleaning and replacement of paint containers ** 1. ** Clean paint container ** - Clean up the old paint container, use professional equipment to heat and spray it with high pressure to ensure that it is thoroughly cleaned. 2. ** Change paint container ** - A new paint container was installed, and the corresponding clamp was used to fix the container to ensure safety and reliability. ** IV. Replacing the valve and sensor ** 1. ** Replacing the valve ** - First of all, determine which valve needs to be replaced, then use professional equipment to disassemble it, and choose a suitable position for the new valve to install. 2. ** Replacing the sensor ** - Clean the original sensor, then remove it and mark it according to the location where the new sensor is to be installed. For the modification of the reactor involving the key supervision of dangerous chemical processes (such as the modification of the internal heat-conducting oil-injected electric heating reactor without cooling measures): 1. ** For the atmospheric pressure reaction process using heat medium heating ** - The reaction kettle should be equipped with automatic control valve for feed and heat medium, and the reaction temperature can be adjusted by changing the feed flow or heat medium flow. - The reaction kettle shall be equipped with a high reaction temperature alarm and interlocked to cut off the feed or the heat medium. The parallel lock shall be used to open the emergency cooling system (including the cooling medium) and emergency discharge facilities. 2. ** For the pressure reaction process using heat medium heating ** - The reaction kettle should be equipped with an automatic feed or heat medium flow control valve, which can adjust the reaction temperature and pressure by changing the feed flow or heat medium flow. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction kettle oxygen concentration detection
There were many ways to detect the oxygen concentration in the reactor: 1. ** Sensing ** - ** Limiting-current type micro-oxygen sensor **: For example, the SO-D0 - 020 -A100C limiting-current type Zirconia oxygen sensor recommended by the industry mining website. The range is 0.01% - 2%, the wire length is 1 meter, and the minimum oxygen can be detected is 100pm. It is widely used in metal laser 3D printer, nitrogen production, fermentation and other fields. Its working principle was based on the carrier of the current in the zirconium dioxide bath being oxygen ions. When voltage was applied to the zirconium dioxide bath, oxygen was pumped to the positive pole, and a cover with a hole was added to the negative pole of the bath to limit the rate of oxygen flowing to the negative pole. As the applied voltage increased, the current in the bath reached saturation (limiting current), which was proportional to the concentration of oxygen in the surrounding environment. - ** Phorescent micro-oxygen transmitter **: For example, the UK's SSS fluorescent micro-oxygen transmitter-LOX-Trace- 1000 - BLX can measure the exposure to any oxygen concentration environment without damaging the sensor. It has high oxygen sensitivity and high sensitivity, fast response speed, and short purification time. It can be directly connected to the controller through the RS485 interface. - ** Electrochemical fuel cell type oxygen analyzer **: The oxygen sensor of the Southland oxygen analyzer-OMD640 is based on the principle of an electro-chemical fuel cell. The standard cell (TO2 - 133) is not affected by other background gases such as H2, He, or hydrogen. The acidic cell (TO2 - 233) works in the presence of acidic gases such as carbon dioxide or natural gas. The sensor is independent and requires little maintenance. There is no need to clean the electrodeor add an solute. 2. ** Online Analysis System ** - By installing an online analysis system for the oxygen content in the reaction kettle, the sample gas in the reaction kettle was collected, and the oxygen content value in the sample gas was detected, so as to know the oxygen content value in the reaction kettle. - The system composition of the reactor oxygen content analyzer included three parts: pre-treatment, sample collection, and analysis. In the pre-treatment part, the medium in the sample gas that affects the sensor measurement is removed or diluted to an acceptable concentration by neutralizing, thinning, or absorbing, so as to ensure the life and measurement accuracy of the analysis part. 3. ** Other instruments for testing principles ** - There were also instruments based on the principle of electrochemistry (gas in the primary battery generates an electric current to detect), such as the explosion-proof oxygen analysis system with the product model number of SC-Y500EQ. The working and counter poles were separated by a thin layer of an solute and connected to an external circuit through a small resistance. When the gas diffused into the sensor, the surface of the sensitive pole would undergo an oxidization or reduction reaction to generate an electric current. The current was directly related to the gas concentration and could be measured. - There are also instruments based on the principles of parasitism, optical, laser, etc., such as the HCC-type reactor oxygen content analyzer, which can directly measure the oxygen content in real time and accurately control it through bypass or in-place measurement. It has customized pre-treatment. It has the functions of neutralizing the sample gas with acid and base, removing organic matter, removing water, drying, stabilizing pressure, constant flow, etc., and has safety protection.(When the oxygen concentration value exceeds the first level of the pre-set alarm value, the electromagnetic nitrogen replacement will be automatically turned on until the value drops to the safe range), the nitrogen flow control (equipped with a nitrogen control box, when the oxygen concentration value is within the safe range, the large flow will be automatically cut off to realize the continuous supply of small flow to meet the micro-positive pressure in the kettle machine) and other features, which can realize automatic drainage and reduce personnel maintenance costs. In addition, traditional detection methods also used electrochemistry, ion flow, parasitism, Zirconia, laser, and other principles for detection. When there are special conditions in the reactor (such as the presence of corrosive gases, water vapor, etc.), a gas pre-treatment system may be needed to process the sample gas, remove organic liquids, water, and some impurities before analyzing the oxygen content. If the biochemical oxygen analyzer was used, it could meet the needs of ordinary customers. However, when the gas composition was too complicated to be completely processed by the pre-treatment system, the oxygen content analysis could only be carried out after the pre-treatment system. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The working principle of oil extraction
The working principle of oil extraction included geological exploration, drilling, oil extraction, and transportation. The location and nature of the oil reservoir can be determined through geological survey and geological survey. Well drilling was the process of passing a drill bit through the earth and into the oil reservoir. Oil extraction was the process of extracting oil from a reservoir. Transportation was the process of transporting the extracted oil to its destination. The specific mining methods included natural pressure mining, artificial pumping, water flooding, and gas flooding.
The working principle of 2D and 3D
The working principles of the 2D and 3D are different. You can refer to the following explanation: Two-dimensional refers to the fictional two-dimensional world that usually appears in anime, comics, games, and other media. In the 2D world, characters, scenes, and things were flat, and the colors and shapes were simple geometric shapes. The working principle of 2D was based on the projection principle by projecting an image onto a two-dimensional plane to create a virtual world. The three-dimensional world refers to the real world we live in. In the three-dimensional world, characters, scenes, and things were all three-dimensional, and the colors and shapes were all complicated. The working principle of the three-dimensional world was based on the principle of perspective. By observing an object from different angles and distances, one could obtain its shape, size, position, and other characteristics. Therefore, the difference between the working principle of 2D and 3D was that they were based on different principles and presentation methods.