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Providing cooling and heating exchangers to stabilize operations in chemical and petrochemical plants

Exchangers are widely used for both cooling and heating large scale industrial processes. Heat exchangers work to stabilize the operation of the plant by recovering heat and transferring it to another part of the process. This practice saves money, as the heat supplied to other streams from the heat exchangers would otherwise come from an external source — which is more expensive and more harmful to the environment.

Because there are usually several interrelated exchangers in a system, any malfunction can be compounded. Due to the corrosive nature of much of the chemical / petrochemical media, maintenance of the exchangers is a continual concern. Isolation of the exchangers for repair, re-tubing or cleaning is imperative for the integrity of the process, and can have a direct impact to the operations budget. The ability to install these critical isolation valves horizontally or vertically is also an important factor in choosing the correct valve type. MOGAS quarter-turn metal seated ball valves can be installed in either configuration, reducing the need of numerous spare valves.

Typical tasks of exchangers in chemical / petrochemical plants include:
  • Heating and cooling of acids and caustic solutions
  • Cooling of highly viscous products
  • Tempering and condensation of solvents, exhaust vapor and steam
  • Cooling of water circuits

Exchanger – Shell and Tube, Plate, Helical, etc. Process Flow Diagram
  1. Primary Inlet Tube Side Block
  2. Secondary Inlet Tube Side Block
  3. Inlet Tube Side Drain
  4. Secondary Outlet Tube Side Block
  5. Primary Outlet Tube Side Block
  6. Outlet Tube Side Drain
  7. Primary Inlet Shell Side Block
  8. Secondary Inlet Shell Side Block
  9. Inlet Shell Side Drain
  10. Secondary Outlet Shell Side Block
  11. Primary Outlet Shell Side Block
  12. Outlet Shell Side Drain
  13. Tube Side Temperature Control

Condensor Boxes Process Flow Diagram
  1. Feed Isolation
  2. Cooling Medium Isolation
  3. Heating Medium Isolation
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