Fully automatic reaction kettle

The fully automatic reaction kettle can achieve higher level of reaction control and automated production...

The fully automatic reaction kettle is an equipment used for chemical synthesis and experiments, which can control reactions under precise temperature, pressure, and reaction time. It is typically composed of a reactor, heating system, temperature controller, pressure controller, stirrer, liquid level meter, sensor, etc. The reactor is the core component of the entire device, and its material can be selected based on different reactions. The heating system is usually heated by electrical heating or external hot water circulation to provide the required reaction temperature.

The temperature and pressure controllers can achieve precise control and monitoring of the temperature and pressure during the reaction process, ensuring the safety and stability of the reaction. The stirrer can mix the reactants during the reaction to facilitate the reaction. The liquid level meter and sensor can detect the liquid level and status of the reactants in real-time and provide feedback.

The fully automatic reaction kettle is widely used in the fields of organic chemical synthesis, catalytic reactions, high-pressure reactions, high-temperature reactions, etc. Its advantages include precise control of reaction conditions, reducing the danger of reaction, and improving reaction efficiency and product purity. Most fully automatic reaction kettles also have a data recording system that can record parameters and data during the reaction process for subsequent data analysis and processing. In addition, the fully automatic reaction kettle can be integrated with other devices and automation systems to achieve higher level reaction control and automated production.

Compared to traditional reaction equipment operated manually, the fully automatic reaction kettle has the following advantages:

(1) Precise control of reaction conditions, improving reaction efficiency and product purity;

(2) Reducing the danger of reaction and risk to the operator;

(3) Continuous production and automated control can be achieved, improving production efficiency;

(4) The data recording system can record and analyze various parameters and data during the reaction process.

In conclusion, as an advanced chemical laboratory equipment, the fully automatic reaction kettle has important application value in the field of chemical synthesis and reaction. With the development of technology and industry progress, the fully automatic reaction kettle will be increasingly widely used in various fields and bring more convenience and benefits to production and research.

Structure and Principle of Rotary Evaporator

A rotary evaporator, also known as a rotary evaporator, is a commonly used laboratory equipment composed of parts such as a motor, distillation flask, heating bath, condenser, etc. It is mainly used for continuously distilling volatile solvents under reduced pressure conditions and is applied in fields such as chemistry, chemical engineering, biomedicine, etc.

It is suitable for reflux operations, rapid evaporation of large amounts of solvents, concentration of trace components, and reaction processes that require stirring. The rotary evaporator system can seal the pressure reduction to 400-600 mm Hg; the heating bath heats the solvent in the distillation flask, and the heating temperature can be close to the boiling point of the solvent.

At the same time, it can also rotate, with a speed of 50-160 RPM, forming a thin film of the solvent and increasing the evaporation area. In addition, under the action of a high-efficiency cooler, the hot vapor can be rapidly liquefied, accelerating the evaporation rate.

Let's take a look at the structure and principle of the rotary evaporator.

I. Structure:

The distillation flask is a pear-shaped or round-bottomed flask with a standard ground glass interface, connected to a high-reflux helical condenser and a vacuum pump through a three-way piston. The reflux condenser is connected to the receiving flask with a ground glass interface for receiving the evaporated organic solvent.

Between the condenser and the vacuum pump, there is a three-way piston. When the system is in communication with the atmosphere, the distillation flask and the receiving flask can be removed to transfer the solvent. When the system is in communication with the vacuum pump, the system should be in a reduced pressure state.

When in use, first reduce the pressure, then start the motor to rotate the distillation flask, and finally, first stop the machine and then communicate with the atmosphere to prevent the distillation flask from falling off during rotation. As a heat source for distillation, a corresponding constant temperature water bath is often equipped.

II. Principle:

By electronic control, the flask is rotated at a constant speed to increase the evaporation area. The vacuum pump is used to put the evaporating flask into a negative pressure state. The evaporating flask is heated and diffused in a rotating flask under negative pressure while being heated in a constant temperature water bath.

The rotary evaporator system can seal the pressure reduction to 400-600 mm Hg; the heating bath heats the solvent in the distillation flask, and the heating temperature can be close to the boiling point of the solvent. At the same time, it can also rotate, with a speed of 50-160 RPM, forming a thin film of the solvent and increasing the evaporation area.

In addition, under the action of a high-efficiency cooler, the hot vapor can be rapidly liquefied, accelerating the evaporation rate.

That's all for this article. I hope the above information is helpful to you. Thank you for watching and supporting us. We will collect more information for you in the future, so please stay tuned to our website for updates.

The maintenance and preservation methods for anti-corrosion diaphragm pump

The anti-corrosion diaphragm pump is a type of diaphragm pump that is resistant to corrosion. It is mainly used for conveying corrosive liquids with strong acids and alkalis. The anti-corrosion diaphragm pump made of fluoroplastic material is widely used for conveying corrosive liquids. It has the advantages of strong corrosion resistance and a wide range of applications.

The diaphragm pump, also known as a control pump, is the main type of actuator. The fluid flow is changed by dynamic operation through receiving control signals from the modulation unit. The diaphragm pump is usually composed of an actuator and a valve. Compressed air is used as the power source and can discharge various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids.

The anti-corrosion diaphragm pump can not only extract flowing liquids but also convey some non-flowable media. It has many advantages in transporting machinery such as self-priming pump, submersible pump, shielded pump, slurry pump, and impurities pump. It is easy to use, reliable in operation, and only requires simple opening and closing of the gas valve to start and stop. Even if the pump runs without medium for a long time or suddenly stops due to unexpected situations, it will not be damaged. Once overloaded, the pump will automatically stop, and it has self-protective performance. Once the load returns to normal, it can automatically start to operate again.

The anti-corrosion diaphragm pump has a simple structure and fewer vulnerable parts. The pump structure is simple, easy to install and maintain, and the medium conveyed by the pump does not come into contact with the air valve and connecting rod and other moving parts, unlike other types of pumps that have gradually declining performance due to wear of the rotor, piston, gear, blade and other parts. No oil lubrication is required, and even idling has no effect on the pump, which is an advantage of the pump.

If the filter material is dirty or the muffler is dirty, the air circulation will be hindered and will cause overheating and excessive noise, so the filter material in the pump head should be checked regularly.

Next, we will share with you the daily inspection and maintenance methods of the anti-corrosion diaphragm pump.

1. Disconnect the power supply. Be sure to disconnect the power supply before maintenance to avoid injury.

2. Loosen the pressure valve and release the gas in the pump body.

3. Remove the hose.

4. Remove the pressure gauge, remembering the placement of the pressure gauge, and remove the four-way valve.

5. Unscrew the 6 internal hexagonal screws at the pump head, open the air chamber, and retain the screws.

6. There is a sealing ring in the groove on the reverse side of the air chamber. If the sealing ring is already damaged, please discard it.

7. Below the air chamber is a circular diaphragm chamber, remove the diaphragm chamber.

8. Check if the valve plate has aged or damaged, if it is damaged or too dirty, please replace or clean it.

9. The black diaphragm below the diaphragm chamber is fixed with a small pressure cover.

how to use high precision circulation oil bath and some precautions

The high precision circulation oil bath, also known as high-temperature circulation tank, sets the required temperature through the temperature control table, and the heating tube heats the heat medium in the pot belly, and the built-in circulation pump and external circulation pipeline deliver the heat medium in the pot belly to the sandwich layer in the matching equipment, indirectly heating the materials in the reactor.

The high precision circulation oil bath is generally used with double-layer glass reaction kettle, stainless steel reaction kettle, and porcelain reaction kettle with sandwich layer reaction equipment. The oil bath kettle is connected to the inlet of the reaction kettle body below the reaction kettle body from the outlet valve pipeline of the oil bath kettle, and the circulating liquid is returned to the inlet of the oil bath kettle from the outlet of the reaction kettle body above the reaction kettle body through the pipeline, forming a complete circulation space. It is commonly used equipment in laboratories of major universities, environmental protection, scientific research, petroleum, metallurgy, chemical, medical, and other units.

It has the advantages of fast heating, uniform temperature, compact and reasonable structure, safe and convenient use, accurate temperature control, rapid cooling, controllable output flow, energy saving, etc., and is widely praised by users.

Steps to use the high precision circulation oil bath:

1. When adding oil, the distance from the pot edge is not less than 8CM, and soft oil (generally methyl silicone oil) must be used.

2. Before use, make sure that the rated current of the power socket is not less than 6A and there is a safe grounding device.

3. First insert the plug of the multi-functional oil bath pot, then insert the power socket, and then turn on the power. Click the function key, adjust the temperature by pressing △ or ▽, set it up, and then press the function key again. The temperature will run according to the set temperature.

4. If the circulation function is needed or the oil temperature uniformity is higher, turn on the circulation switch, and the oil in the oil tank will be uniformly temperature.

5. After use, adjust the temperature to zero to avoid operational mistakes during the next use.

Precautions for high precision circulation oil bath:

1. The temperature is relatively high during use, so be sure to wear protective gloves to avoid burns.

2. When the temperature exceeds 100℃, there should be no water droplets on the outside of the reagent bottle when placing the sample to avoid splashing of hot oil.

3. If the high-temperature oil bath pot is not used for a long time, the oil in the oil tank must be drained clean and cleaned.

4. A safety socket with three holes and grounding wire must be used, and the current must not be less than 10A.

the composition and structure of a plant cultivation box

The plant cultivation box can simulate multi-directional light sources in nature and is controlled by a microcomputer. It can set different day and night settings, display the experimental period (number of days), set time, set temperature, remaining time, actual temperature and light level. It can display the temperature inside the box and outside the box.

This instrument is suitable for plant breeding, bacterial mold, cultivation of microorganisms, BOD determination of water analysis and other constant temperature experiments. It is a specialized constant temperature cultivation device for the cultivation and breeding experiments of bacteria, mold and microorganisms.

Next, let's learn about the composition and structure of the plant cultivation box together.

1. Lighting:

The plant cultivation box uses a standard lighting system to provide balanced lighting, ensuring accurate lighting intensity throughout the experiment. The lighting system includes fluorescent lamps, incandescent lamps, and other types of bulbs, creating a spectral balanced growth environment for the plants. The standard lighting intensity is 575 mmol/m2/s and is measured by a light quantum detector and transmitted to the controller. The standard lighting control system includes four lighting intensity levels for each type of bulb and can achieve higher intensity lighting and control.

1. Air flow:

Through the use of a new generation air delivery system, the air flow in the plant cultivation box flows vertically upwards and is evenly distributed. The air flow intensity is sufficient to meet the air exchange on the leaf surface, and is beneficial for ensuring air exchange around the plant.

1. Refrigeration system:

The plant cultivation box has an independent air-cooled condenser unit that cools the hot air through a continuously running compressor. The temperature inside the cultivation box can be strictly controlled through electronic adjustment valves in a quiet environment. The built-in pressure sensor can monitor the status of the refrigeration system.

1. Experiment protection:

The plant cultivation box has an alarm function that monitors the operation of the cultivation room based on the user-set alarm points. This way, the cultivation room can be accurately monitored without the need to adjust it after each setting. The plant cultivation box's alarm function provides deeper protection. When any alarm is activated, it will emit a visual and auditory alarm and the building management system can also be connected.

1. Control system:

The control system of the plant cultivation box has a friendly, colorful touch screen controller for convenient user control of the experiment process. By controlling the lighting, temperature, and humidity inside the box, it can achieve automatic control for several months or even years and real-time graphical monitoring. In addition, the control system can be networked for real-time monitoring and convenient remote operation.