The outer coil extraction tank corresponds to the standard jacketed extraction tank. The standard extraction tank uses a jacket for heating and cooling in relevant scenarios. The outer coil extraction tank uses half – pipes as the heat – exchange medium to carry out heat – exchange reactions. The outer coil extraction tank and the jacketed heating extraction tank each have their advantages and disadvantages. The standard jacketed extraction tank has a large heat – exchange area and good heat – exchange effect. However, for the influence of high steam pressure on the thickness of the tank inner wall, the tank wall thickness increases, the cost rises, and the jacket with pressure belongs to a pressure vessel. The outer coil extraction tank has good strength, can withstand pressure, can bear large pressure, and does not belong to a pressure vessel. Circles of half – pipes are welded along the tank wall, with sufficient heat exchange and good diversion effect. However, the heat – exchange area of the outer coil extraction tank of the same – sized reaction kettle is small.
The outer coil extraction tank uses circles of half – pipes as the heat – exchange jacket. The half – pipes can be circular half – pipes or square half – pipes. Half – pipes can be set on both the bottom head and the cylinder body. The heat – exchange area can be large or small and can be set as needed. Because the outer coil extraction tank is spiraled in circles, it is heated evenly, has a good diversion effect, and will not be overheated locally. A thermal insulation layer is set outside the outer coil extraction tank, with a beautiful appearance and no dead corners for cleaning. According to process needs, the tank can be equipped with a feed inlet, a feeding port, an online cleaning port, an SIP sterilization port, a reflux port, a steam inlet, a condensed water outlet, etc. According to control requirements, it can be equipped with an online temperature display and monitoring system, liquid level display, upper and lower liquid level control and alarm, weighing and metering, etc.
| Item | 0.5 | 1.0 | 2.0 | 3.0 | 6.0 |
|---|---|---|---|---|---|
| Total Volume (L) | 500 | 1200 | 2500 | 1200 | 1200 |
| Designed Pressure Inside Tank (MPa) | 0.09 | – | – | – | – |
| Designed Pressure Inside Jacket (MPa) | 0.3 | – | – | – | – |
| Allowable Vacuum Degree Inside Tank (MPa) | 60 | – | – | – | – |
| Compressed Air Pressure (MPa) | 0.6 – 0.7 | – | – | – | – |
| Diameter of Feeding Port (mm) | 300 | 400 | 400 | 400 | 400 |
| Heating Area (M2) | 2.4 | 3.0 | 4.7 | 6.5 | 11 |
| Condensation Area (M2) | 3 | 4 | 6 | 8 | 15 |
| Cooling Area (M2) | 1 | 1 | 1 | 1.5 | 1.5 |
| Filter Area (M2) | 0.25 | 0.5 | 0.5 | 0.8 | 0.8 |
| Equipment Weight (kg) | 1000 | 1800 | 2050 | 2300 | 3200 |
| Overall Dimensions (mm) | φ1400 × φ2300 | φ1700 × φ2900 | φ1800 × φ3700 | φ1700 × φ2900 | φ1700 × φ2900 |
