1. Heat Exchangers Piping Layout
How should piping be arranged for tubular heat exchangers with removable tube bundles while developing Heat Exchangers Piping Layout?
Explanation: Piping for tubular heat exchangers with removable tube bundles shall not interfere with the free removal of the bundle.
2. Inlet and Outlet Valves in Water Lines
According to Exchangers Piping and Layout, what should be provided in water lines to and from tubular units?
Explanation: Inlet and outlet valves should be provided in water lines to and from tubular units according to Exchangers Piping and Layout.
3. Vents in Outlet Piping
What size of valved vents should be provided in outlet piping from liquid-cooled exchangers at the high point?
Explanation: Provide 3/4 inch valved vents in outlet piping from liquid-cooled exchangers at the high point.
4. Drain Valves for Salt Water Cooled Exchangers
What is the purpose of providing drain valves for salt water cooled exchangers?
Explanation: Drain valves for salt water cooled exchangers are provided to permit complete draining of the exchanger piping downstream of block valves.
5. Exchanger Piping and Handling Facilities
According to Exchangers Piping and Layout, where should exchanger piping not run in the way?
Explanation: Exchanger piping shall not run in the way of built-in or mobile handling facilities according to Exchangers Piping and Layout.
6. Wrench Clearance at Exchanger Flanges
What is the purpose of providing wrench clearance at exchanger flanges?
Explanation: Wrench clearance shall be provided at exchanger flanges for ease of maintenance.
7. Removal of Shell End and Channel Cover
How should piping be arranged to not hinder the removal of shell end and channel cover and withdrawal of the tube bundle?
Explanation: Pipes should be arranged so that they do not hinder the removal of shell end and channel cover and withdrawal of the tube bundle. Break up flanges should be provided wherever required.
8. Floating Head Exchangers and Tube Bundle Removal
For floating head exchangers, what must be allowed at the channel end?
Explanation: For floating head exchangers, a tube pulling or rod cleaning area must be allowed at the channel end.
9. Platform for Vertical Exchangers
What should be provided below the top flange of the channel/bonnet for vertical exchangers?
Explanation: A suitable platform should be provided below the top flange of the channel/bonnet for vertical exchangers.
10. Minimum Clearance Between Horizontal Exchangers
What is the minimum clearance between two horizontal exchangers?
Explanation: The minimum clearance between two horizontal exchangers should be 2m or 900mm aisle, whichever is higher.
11. Monorail for Tube Bundle Removal
For which exchangers is a monorail to be provided for tube bundle removal, according to Exchangers Piping and Layout?
Explanation: A monorail is to be provided for tube bundle removal for all exchangers except those that are open to the sky.
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- Plant Design & Layouts-OISD 118
- Isometric Management
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