Laboratory hydrogenation reactor

NegotiableUpdate on 05/06

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Nature of the Manufacturer: Producers

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Overview

The laboratory hydrogenation reactor equipment is basically the same. In addition to the reactor, there are transmission devices, stirring and heating (or cooling) devices, etc. The operating pressure of the high-pressure reactor is relatively high. Widely used in universities and research experimental departments. The broad understanding of laboratory reaction kettle refers to a stainless steel container with physical or chemical reactions. By designing the structure and configuring the parameters of the container, the heating, evaporation, cooling, and low/high speed mixing functions required by the process can be achieved

Product Details

　　Main characteristics of laboratory hydrogenation reactor：

　　Core Structure and Principles

Magnetic transmission system: achieves static sealing through end face rare earth coupling driver, avoiding the leakage risk of traditional packing or mechanical seals, especially suitable for reactions of flammable, explosive, and toxic media

Material of kettle body: Common materials include stainless steel (such as 304, 316L), titanium, nickel, etc. Some equipment is lined with polytetrafluoroethylene (PTFE) to enhance corrosion resistance, and the maximum working temperature can reach 250 ℃ (PTFE lining is 180 ℃)

Heating and Temperature Control: Modular heating (such as electric heating and thermal oil heating) is used, with a temperature control accuracy of ± 1 ℃, supporting real-time temperature monitoring and automatic adjustment

Mixing system: Built in magnetic stirrer with a speed range of 0-1300rpm, suitable for uniform mixing of materials with different viscosities, and the mixing components have good sealing, suitable for long-term use

The laboratory magnetic stirring reaction kettle is mainly composed of the kettle body, kettle cover, magnetic stirrer, heater, valve, feeding port, internal cooling coil, safety blasting device, pressure gauge, control instrument, and lifting device.

(1) The kettle body and kettle cover are made of metal material 304 lined with Hastelloy, and the kettle cover is an integral flat cover. The kettle body is made of integral round bar material, and the seal between the kettle body and kettle cover is sealed with gaskets.

(2) Connection flange: The flange material is 35CrMoA, and there are bolts evenly distributed in the circumferential direction on the flange. The sealing is achieved by tightening the nuts, and the sealing is reliable without leakage.

(3) Magnetic stirrer: It is driven by a servo motor to rotate the outer magnetic steel body. The outer magnetic steel body drives the inner magnetic steel body, stirring shaft, and stirring blade to rotate through magnetic lines, thereby achieving the purpose of stirring. In order to ensure the normal operation of the magnetic stirrer, a cooling water jacket is installed on the magnetic stirrer. Before each start-up, cooling water must be introduced between the cooling water jackets to reduce the temperature and ensure that the magnetic material of the magnetic stirrer does not demagnetize; Please enter water from the water outlet of the magnetic stirrer and exit water from the water outlet.

(4) Heater: The heating of the reaction kettle is achieved through an electric heating tube, which has the characteristics of uniform thermal conductivity, fast heating speed, and long service life. The outgoing line is connected to the control instrument through a junction box and cable; There are slots on both sides of the upper furnace ring of the heating furnace, and hanging columns are installed on both sides of the kettle body. Align the hanging columns with the slots and install them, then rotate them to the right to fix the heating furnace to the kettle body. Otherwise, it can be removed.

(5) On the upper and side parts of the kettle cover, there are mixing ports, temperature measuring ports, air inlet ports, exhaust ports, pressure gauge safety blasting valve ports, etc. External valves, pressure gauges, safety blasting valves, temperature measuring protection pipes, etc. are all sealed by contacting with circular arcs and circular arc lines, and achieved by tightening nuts.

　Principle safety features

Pressure and temperature monitoring: equipped with pressure gauges, safety rupture valves, and temperature sensors to ensure experimental safety

Sealing test: Before use, an inert gas pressure test must be conducted to ensure the sealing performance of the equipment

The laboratory magnetic stirring reactor system is a stirring reaction device for chemical reactions of gas-liquid, liquid-liquid, liquid-solid or gas-liquid solid three-phase chemical materials. It can fully stir various chemical materials under high pressure, vacuum, and temperature to enhance mass and heat transfer processes.

When conducting reactions with different media in a reactor, it is necessary to first investigate whether the media corrode the main material. Special orders are required for chemical reactions that cause rapid reactions, generate large amounts of gas, or are flammable and explosive at high temperatures, as well as reactions that cause severe corrosion to stainless steel due to ultra-high pressure, ultra-high temperature, or chloride and fluoride ions in the medium!

When loading the reaction medium, it should not exceed 2/3 of the liquid level of the laboratory reaction kettle body!

It is strictly prohibited to disassemble under pressure during work or at the end! It is strictly prohibited for the kettle to work under overpressure or overheating conditions. The main feature of Weihai Zhenhong Chemical Machinery Co., Ltd.'s reaction kettle is the use of a static sealing structure, and the agitator and motor drive are connected by magnetic coupling. Due to its non-contact torque transmission, static sealing is used instead of dynamic sealing to solve the leakage problem of agitation

With its sealing, safety, and flexibility, it has become an ideal choice for high-temperature and high-pressure reactions in scientific research and industry.

A common malfunction is the magnetic stirrer part. If the stirring shaft has a large swing or produces abnormal noise during use, the shaft sleeve of the magnetic stirrer needs to be replaced. Weihai Zhenhong Chemical Machinery Co., Ltd. reminds that if maintenance is required, please follow the following steps for repair.

1. Unscrew the nut on the kettle cover and remove the materials from the kettle. If there is a reaction with flammable, explosive or toxic media, it should be cleaned first.

2. Remove the kettle cover component together with the magnetic stirrer, and use a wrench to disassemble the magnetic stirrer.

3. Remove the threads connecting the top sealing cap and cooling body to the sealing cover body, and remove the sealing cover body together with the inner and outer magnetic steel rotors and the upper stirring shaft, so that the supporting cooling body can be removed.

　　Laboratory hydrogenation reactorIt should be placed indoors. When equipping multiple high-pressure reactors, they should be placed separately. Each operating room should have an exit directly leading to the outside or passage, and the equipment grounding point should be ensured to have good ventilation.

1. The high-pressure reactor should be used in a dedicated location and operated according to the instructions.

2. Identify the test pressure, operating pressure, and maximum operating temperature conditions engraved on the main container, and use them within their allowable range.

3. The pressure used by the pressure gauge is best used within 1/2 of its indicated pressure. And often compare the pressure gauge with the standard pressure gauge and calibrate it.

4. Oxygen pressure gauges should be avoided from being mixed with pressure gauges used for other gases.

5. Safety valves and other safety devices should use instruments that have been regularly inspected and meet the specified requirements.

6. Attention must be paid during operation to accurately insert the thermometer into the reaction solution.

7. The interior and lining parts of the high-pressure reactor should be kept clean.

8. When covering the disc flange cover, the bolts located on the diagonal should be tightened in pairs in sequence.

9. When the measuring instrument ruptures, in most cases, it breaks on both sides of its glass surface. Therefore, do not stand in these dangerous places during operation. When danger is expected, the glass should be removed and replaced with a new one.

When installing the kettle cover, it is necessary to prevent the sealing surfaces between the kettle body and the kettle cover from colliding with each other. Carefully place the kettle lid in a fixed position on the kettle body, and when tightening the main nut, it must be tightened diagonally and symmetrically in multiple steps. Apply even force and do not allow the kettle lid to tilt to one side to achieve a good sealing effect.

The material of the kettle body is mainly made of 1cr18Ni10Ti stainless steel, and titanium (TA2), nickel (Ni6), and composite steel plates can be made according to different medium requirements. The kettle body structure includes a flat cover, a convex cover, and a closed reaction kettle body with a manhole. The opening on the kettle cover can be designed according to user requirements; The heating methods include jacket steam, jacket hot oil electric heating, etc., which can be optionally selected by users when ordering. For the inner surface of the kettle with polishing requirements, the above mirror polishing level can be achieved. For high viscosity materials, it can be processed into a conical bottom for easy feeding and cleaning.

When cleaning the high-pressure reactor, special attention should be paid not to let water or other liquids flow into the heating furnace to prevent the heating furnace wire from burning out. If heating the jacket heat transfer oil, be careful not to mix water or other liquids into it when adding heat transfer oil. The oil level of the heat transfer oil should be checked periodically!

If there is abnormal noise inside the isolation sleeve during operation, the machine should be stopped to release pressure and the mixing system should be checked for any abnormal conditions. Regularly check the swing amount of the mixing shaft. If the swing amount is too large, the bearing or sliding shaft sleeve should be replaced in a timely manner!