Stainless steel coil heating reactor resin production equipment

Stainless steel heat transfer oil heating coil reactor

1、 Product Definition and Core Structure

Coil reactor is a closed reaction equipment that achieves efficient heat exchange through built-in spiral coils, mainly used in liquid-liquid, liquid-solid or gas-liquid reaction processes in chemical, pharmaceutical, new energy and other fields. Its core structure consists of four main parts: a double-layer jacket kettle body, a spiral coil system, a stirring device, and an intelligent temperature control system:

Kettle body: made of 316L stainless steel, Hastelloy alloy or enamel glass material (depending on the corrosiveness of the material), with a design pressure of 0.1-3.0MPa and a capacity of 50-5000L to choose from;

Coil system: Spiral copper/stainless steel pipes are tightly wrapped around the interlayer of the kettle wall (or independently embedded in the kettle), and precise temperature control of the materials inside the kettle is achieved through the circulation of thermal oil, steam, or cooling water;

Mixing device: equipped with anchor, paddle or propeller type mixing blades (adjustable speed of 15-600rpm), combined with coils to achieve uniform mixing of materials and heat transfer;

Intelligent control system: integrated PLC+7-inch touch screen, supports real-time monitoring of multiple parameters such as temperature, pressure, and speed, and has safety functions such as over temperature alarm and automatic pressure relief.

Compared to traditional jacketed reactors, the heat exchange area of coil reactors is increased by 30% -50%, and the temperature control accuracy can reach ± 0.5 ℃ (jacketed reactors usually ± 2 ℃), especially suitable for high heat release or reaction scenarios that require rapid temperature rise and fall.

2、 Core technological advantages

1.Efficient heat exchange capacity

The coil adopts a spiral dense winding design (tube spacing 50-100mm), with a unit volume heat transfer area of 1.2-1.5 ㎡/L (jacket kettle is only 0.8-1.0 ㎡/L), and with high thermal conductivity medium (such as thermal oil), it can achieve rapid heating of the material in the kettle from 20 ℃ to 200 ℃ within 10 minutes.

2. Precise temperature control

The independent coil circuit supports multi-stage temperature control (such as segmented heating/cooling), combined with PID algorithm and high-precision temperature sensor (PT100), can control the temperature fluctuation of the reaction within ± 0.5 ℃, avoiding side reactions caused by temperature deviation (such as uneven polymerization degree).

3. Strong corrosion resistance and sealing performance

The material of the kettle body can be selected from 316L (resistant to chloride ion corrosion), Hastelloy B2 (resistant to strong acid), or enamel glass (resistant to strong alkali) to meet the reaction requirements of highly corrosive materials such as concentrated sulfuric acid and hydrofluoric acid;

The mixing shaft adopts a dual mechanical seal and air curtain isolation design, with a leakage rate of less than 10ppm (in compliance with ATEX explosion-proof standards), suitable for volatile and toxic materials such as phosgene and chloromethane.

4. Modular expansion capability

Support optional vacuum system (vacuum degree -0.098MPa), spray atomization device, online sampling port and other modules, suitable for diversified processes such as pressure reduction reaction, suspension polymerization, catalytic hydrogenation, etc.