REACTOR VESSEL

SHAKTI MAKE REACTOR VESSEL

 

We are recognized firm engaged in manufacturing extremely efficient Reactor Vessel that is the central component of the reactor coolant system and which is sturdily steel constructed by skilled professionals in house. The Reactor Vessels designed and developed by us are widely used in commercial nuclear power plant, pharmaceutical industries, chemical plants, etc.

Reaction vessels are at the heart of a chemical plant. They are where the chemical Changes and reactions take place. Powders or liquids may be poured into reaction vessels using large funnels, called hoppers, connected to the top of the vessel.These stainless steel liquid mixing tanks are highly efficient to use with its robust mixing structure for homogeneous mixing of different chemicals and ingredients.

Shakti Engineering Works is an extremely efficient Reactor Vessel Manufacturer and Supplier from Ahmedabad, Gujarat

 

CONCEPT OF REACTOR VESSELS?

 

Liquid Agitation equipment consists of a vessel and a rotating mixing element, termed an agitator, along with an agitator drive system. The vessels can be of various geometrical shapes and sizes. The agitator has several components: agitator shaft, impeller hubs, and impellers. Different types of impellers are available: Pitch blade turbine, Hydrofoil Impeller, Rushton Turbine, Anchor agitator; depending on the specific process requirements

 

WHY TO USE REACTOR VESSELS?

 

Thermal heat exchange surfaces are utilized on vessels for controlling temperature and quality of the contents of the vessel.  Heat exchange surfaces can be designed for heating or cooling.  Jacketed vessels are used in many industries and can be used to remove the elevated heat of reaction (heat reactor vessel) or reduce the viscosity of high viscous fluids. There are basically three types of external jacketed heat transfer surfaces: conventional jacket, half pipe jacket and dimple jacket, which are welded to the outside of the vessel. Internal coils can also be utilized and can be used as a stand-alone option or in combination with any of the other types of external jackets. This white paper serves as an educational and informational reference on heat transfer methods that use steam or fluid, including: n Types of heat exchange surfaces n General application information and comparison n Optional surface treatments n Manufacturing terms and definitions n Regulatory code review

 

TYPES OF JACKETS IN REACTOR VESSEL

 

CONVENTIONAL                      DIMPLE                                    HALF PIPE                                INTERNAL

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONVENTIONAL

 

Conventional jackets are basically an open jacket with an annular space containing the heat transfer media on the exterior surface of the tank. In some instances, internally welded baffles within the conventional jacket control the flow of the heating or cooling agent. In SEW’s experience, water, oil or heat transfer fluid is typically used as heat transfer agents for conventional jackets. Variable coverage areas and pressures are available in conventional jacket designs

 

Best used for large volumes of water used to maintain high temperature difference. Conventional jackets are often used in small vessel design.

Up to 3bar optimally, but can be evaluated for higher pressure depending on the application

Shells, bottom head, top head or the entire tank can be ASME certified.

Conventional jackets require greater shell thickness and expansion joints to eliminate stresses caused by thermal expansion.

 

DIMPLE JACKET

 

Dimple jackets utilize a thin gauge stainless steel layer that is plug welded to the vessel shell in a regular pattern.  The punched and spot welded areas are called dimples, which create turbulence of the heating or cooling fluid flowing through the jacket.  The Dimple Jacket design allows for thinner vessel shell walls than a conventional jacket design due to the strength of the dimple pattern design. Dimple Jackets are manufactured in several different pressures and patterns. SEW provides both 12 ga. and 14 ga. material. Each pattern is validated and proof tested per ASME regulations. SEW has proofed and   certified designs up to 1 ¾” at 10 bar at 300 Degree   but can go to higher temperatures depending   on the application.  SEW provides a CNC    punched “pre-formed”    sheet. It is MIG and plug welded to the shell.

SimpleInflated dimple laser or resistant spot welded dimple jackets are other technologies available.

 

Dimple jackets are well suited to steam applications. High jacket pressures permitted without significant increase of side structure thickness. Efficient heat transfer at low media flow.

15bar with temperature limited to 500o F.

Approved by the National Board of Boiler and Pressure Inspectors up to 15bar

While dimple jackets are economical, it may not provide drainage required by the steam application

 

HALF JACKET

 

The half-pipe jacketed vessel has a split pipe (split evenly or rolled formed sheet) wound around the vessel and welded into place.  This design provides optimal strength and can be rated up to 35 bar. Half-pipe jackets are recommended for high-temperature and liquid heat-transfer applications.

 

High jacket pressures attainable without significant increase of side structure thickness Suitable for steam, water, hot oil and other Medias.

Rated up to 35bar

Half pipe coil jackets are not covered in Section VIII, Division 1 of the ASME code

Half pipe may require multiple sections to reduce condensate cover on the heat transfer area. The increased strength and zone capabilities make the half pipe design suitable for hot oil medium

 

INTERNAL COILS

 

Internal coils are utilized inside vessels for transient heating or cooling of the liquid contained in the tank typically on a batch basis. Coils provide heating and cooling surface contact and are manufactured as a formed spiral around the inside of the shell or a U-shape in the centre of the vessel from the top head down. Internal coil heat transfer solutions are found in many industries. However, the ability to clean the coil effectively and efficiently may be an issue in industries that require extreme sanitation and / or food safety protocols. The internal coil design provides high flow, high internal and external pressures and high pipe ratings.

 

 

 

 

Utilized for heating and cooling surface contact with handling high internal and external pressures. Efficient heat transfer advantages.

Rated to 60bar Pressure

Internal coils can be included as part of an ASME vessel but aren’t required to be code stamped.

Internal coils may be subject to contamination of the vessel contents, especially if contents have corrosive properties

 

SEW Reactor Vessel Features

 

SEW design and supply Industrial Reactors for Petro Chemical, De-Sulfurization, Leather Chemical and Pharmaceutical Processing Plants under third party inspection agencies and as per various international codes.

These are made from wide range of materials like AISI 304/304L/316/316L/310, high yield carbon steel material like SA 516Gr.60/70
 

Atmospheric Working Pressure             18 bar

Temperature Working Vacuum             70 to 290 Degree

Volumetric Capacity                             1 KL to 15 KL

Agitator type                                        Pitch, Blade, turbine, Anchor, Paddle type

SealType                                               Gland Packing, Mechanical Seal or Leap Seal
Heating Method                                   Jacket, Limpet Coil

Heating Medium                                  Steam or Thermic Fluid

Agitator Speed Regulation                    by Gear Motor or VFD