When the outer coil type reactor is in use, its inner coil reactor is a large category of coil reactors. The choice of these two coil types is mainly in the production process, and the inner coil is used. For cooling materials, the outer coil is mostly used for heating functions. The semi-circular pipe jacket of the outer coil reactor causes the inner cylinder to be divided into partial external pressure by the semi-circular pipe, and the outer coil jacket can prevent the inner cylinder from being unstable.
Each outer coil jacket of the outer coil type reactor becomes a reinforcing ring of the reaction vessel body, replacing the clamp sleeve body subjected to the overall internal pressure, and the outer coil jacket is capable of being pressurized at 0.6 to 2.5 MPa. Therefore, in the non-heat-sensitive material reaction process, the quality of the heat transfer medium can be greatly improved. Taking steam heat transfer as an example, the steam pressure of the outer coil reactor can be 0.7-1.3 MPa without further decompression.
The jacket of the outer coil type reactor kettle greatly improves the stress state of the inner cylinder, so the inner cylinder wall thickness is relatively thinned, and since the outer coil jacket is welded with a gap, when the required heat transfer is the same, The heat transfer area of the semicircular tube jacketed reactor is correspondingly small. The main structure of the outer half-coil reactor is a vertical kettle structure, but the heating method has been slightly improved, and the external "coil" form of the kettle body is increased. The area of the half coil is at least higher than that of the kettle. The height to ensure uniformity of warming.
The outer coil type reactor is simple in structure design and can be used as a production line for various products. It has been widely used in petroleum, chemical, rubber, pharmaceutical, food, scientific research and other industries, and can be used for vulcanization, nitration, polymerization, condensation, and alkylation. , a hydrogenation reactor, etc., a comprehensive reaction equipment.
