In chemical engineering, a jacketed vessel is a container that is designed for controlling the temperature of its contents, by using a cooling or heating "jacket" around the vessel through which a cooling or heating fluid is circulated.
A jacket is a cavity external to the vessel that permits the uniform exchange of heat between the fluid circulating in it and the walls of the vessel. There are several types of jackets, depending on the design:
Jackets can be applied to the entire surface of a vessel or just a portion of it. For a vertical vessel, the top head is typically left unjacketed. Jackets can be divided into zones, to divide the flow of the heating or cooling medium. Advantages include: ability to direct flow to certain portions of the jacket, such as only the bottom head when minimal heating or cooling is needed and the entire jacket when maximum heating or cooling is required; ability to provide a higher volume of flow overall (zones are piped in parallel) because the pressure drop through a zone is lower than if the entire jacket is a single zone.
Jacketed vessels can be employed as chemical reactors (to remove the elevated heat of reaction) or to reduce the viscosity of high viscous fluids (such as tar.
Agitation can be also used in jacketed vessels to improve the homogeneity of the fluid properties (such as temperature or concentration).
We manufacture Reaction Vessel from 50 Ltrs to 20 KL in Material of construction Mild Steel, Stainless Steel SS 304 or SS 316.
Jacketed Reaction Vessel consist of a Cylindrical vertical shell with standard torospherical dish on both ends.
A jacket is provided on the Outside of the shell for Heating the reactor by passing steam or thermic Oil. or Cooling the reactor by passing cooling media. Stiffener Rings are provided on shell in between the shell and jacket to give uniform circulation of the heating or cooling media and to intensify the vessel.
Agitator assembly mounted on the Top dish of Reactor consists of Shaft supported by Lantern Assembly on the Top End containing Bearing Housing with Tapered roller bearing and Ball bearing to withstand impact load and vibratory load ensuring smooth rotation of the Shaft. Water cooled Stuffing box filled with gland rope pressed by Gland pusher is also provided.
On the other end of the shaft Blade is fitted of different types as per the need of the Process viz. Single Anchor, Double Anchor, Gate, Paddle, Flat or Curved Turbine & Propeller types. Baffles are also provided inside the shell as per the requirement.
Top Dish of the Reactor is provided with various Nozzles viz. Manhole, Light Glass, Sight glass, Vapour, Addition, Reflux, Thermowell etc.
Bottom Dish of the Reactor is provided with an Outlet nozzle where valve is fitted.