Pingxiang Daier Separation Tech Sep 22, 2026

Why Temporary Shipping Braces on Tower Internals Must Be Clearly Identified and Removed

Why Temporary Shipping Braces on Tower Internals Must Be Clearly Identified and Removed

Custom tower internals may require temporary bracing to survive transportation.

A thin distributor frame that is stable when installed on its vessel supports may be vulnerable while:

  • lifted;
  • placed in a crate;
  • transported by truck;
  • moved by sea.

Temporary braces can protect the product.

They create a new risk if the site does not know which parts are temporary.

Shipping Condition Is Different From Operating Condition

A temporary brace may exist only to:

  • prevent frame distortion;
  • hold segments together;
  • protect thin edges;
  • support transport loads.

It may not belong in the final operating configuration.

Temporary Parts Should Be Identified Visibly

Useful methods include:

  • contrasting tags;
  • labels;
  • drawing notes;
  • removal marks.

The field team should not need to guess whether a bar is:

  • structural;
  • temporary.

Show Temporary Braces on the Installation Drawing

A simple note such as:

TEMPORARY SHIPPING BRACE — REMOVE AFTER INSTALLATION

can prevent major confusion.

Where several braces exist, identify them individually.

Temporary Bracing Can Block Process Flow

If accidentally left in place, a brace may:

  • reduce gas open area;
  • block liquid flow;
  • interfere with packing;
  • create fouling points.

It Can Also Interfere With Other Internals

A transport brace may occupy space needed for:

  • distributor outlets;
  • support grid;
  • packing;
  • collector gas risers.

The tower can appear mechanically assembled while still containing an unintended obstruction.

Removal Should Occur at the Correct Stage

Removing all bracing immediately after unpacking may also be wrong.

Some braces may be needed to maintain geometry until:

  • segments are assembled;
  • supports carry the load;
  • bolts are tightened.

The removal sequence should be defined.

Record Removal Before Tower Closure

Final installation inspection should confirm:

  • temporary braces removed;
  • packing blocks removed;
  • temporary bolts removed where applicable;
  • lifting fixtures removed if not part of service design.

Do Not Confuse Temporary Lifting Devices With Operating Supports

A lifting bar may appear strong.

That does not mean it was designed for process loads.

Similarly, an operating stiffener should not be removed simply because it resembles temporary bracing.

Documentation must distinguish them.

Packaging Materials Also Need Removal Control

Temporary foreign material may include:

  • foam;
  • plastic film;
  • timber;
  • cable ties;
  • protective caps.

Some protective caps may intentionally remain until just before startup.

Engineering Takeaway

Temporary transport features should follow:

Design → Mark → Document → Use During Transport → Remove at Defined Stage → Verify Removal

Every site team should be able to distinguish temporary protection from permanent tower-internal structure.

How to Control Field Modifications to Tower Internals During Installation

How to Coordinate a Liquid Distributor Feed Connection With the Vessel Nozzle