Piping Expansion Loop Design - Hand Calculation
Summary
TLDRThis video guide provides an in-depth look at piping expansion loops, focusing on their design and optimization for high-temperature fluid systems. It highlights the importance of performing flexibility checks, especially for long pipe racks, and discusses how to manage excessive expansion through line stops or expansion loops. The video also explains how to calculate the size of an expansion loop and provides practical tips to ensure efficient and cost-effective designs. With considerations for branch connections and seismic loads, the guide offers valuable industry insights for engineers.
Takeaways
- 🛠️ Expansion loops are critical for managing thermal expansion in piping systems, especially for pipes on long racks transporting high-temperature fluids.
- 📏 A line stop should be placed at the center (zero expansion point) of the pipe to control expansion effectively.
- 🔍 Inspect the expansion distance at the end of the pipe racks to ensure the pipe shoes can handle thermal growth.
- 🔄 If expansion is excessive, consider designing an expansion loop to accommodate it.
- 🌿 Flexibility of branch connections should be evaluated, especially if the main line has significant expansion.
- 💰 Multiple branch connections can be costly, so using an expansion loop on the main line is often preferable.
- 🌍 Expansion loops can also account for occasional forces, including seismic loads, by distributing them along the rack.
- 📐 The largest expansion loop should be positioned outside the smaller loops to ensure optimal performance.
- 🧮 An equation is provided to calculate expansion loop dimensions based on factors like pipe diameter, length, and temperature differences.
- 🏗️ When space constraints exist, consider adding multiple expansion loops to reduce the overall height, which can be costly in terms of construction.
Q & A
What is the purpose of an expansion loop in a piping system?
-The purpose of an expansion loop is to accommodate thermal expansion in piping systems, especially for long pipes that transport high-temperature fluids. This prevents excessive stress and deformation in the pipes.
Why is it important to perform a flexibility check on long pipe racks?
-Flexibility checks are essential for long pipe racks to ensure that the pipes can accommodate thermal expansion without causing damage or excessive strain. This is particularly important for high-temperature fluid transport.
Where should a line stop be positioned in the piping system, and why?
-A line stop should be positioned at the center or the 'native zero point' of the line where the expansion is zero. This helps to control and prevent excessive expansion at the ends of the pipe racks.
How can you manage excessive expansion at the far end of a pipe rack?
-If the expansion at the far end of a pipe rack is excessive, you can either lengthen the pipe shoe to accommodate the expansion or design an expansion loop to handle the thermal growth effectively.
What should be considered when designing branch connections at the far end of the pipe rack?
-The flexibility of branch connections should be considered, especially if the main line's expansion is high. If needed, you may need to redesign the branch connections for better flexibility or add an expansion loop.
Why is it preferable to use an expansion loop on the main line instead of multiple branch connection loops?
-It is more cost-effective to use a single expansion loop on the main line, rather than installing multiple loops on each branch connection, which could be expensive.
How can seismic loads affect the design of an expansion loop?
-In cases where seismic loads are high on the stopper support, using an expansion loop can help divide the load and reduce stress on the piping system during seismic events.
Where should the largest expansion loop be located in relation to other loops in the system?
-The largest expansion loop should be located outside the other loops with less thermal growth to ensure optimal performance and load distribution.
What formula is used to calculate the size of an expansion loop, and what factors are considered?
-The formula for calculating the expansion loop size considers factors such as the pipe diameter, line length, operating temperature, and ambient temperature. These variables help determine the height and width of the expansion loop.
How can the height and width of an expansion loop be adjusted if the initial dimensions are impractical?
-If the calculated height or width of an expansion loop is too large, additional expansion loops can be added to reduce the height or width, ensuring that the loop fits within the available space and remains cost-effective.
Outlines
🔧 Understanding Piping Expansion Loops and Their Importance
This paragraph introduces piping expansion loops and their technical significance in engineering. It emphasizes the need for flexibility checks on pipelines, especially on long pipe racks, which are prone to excessive expansion due to high temperatures. The use of line stops at the center of the line or 'zero' points is recommended to control expansion. If the expansion at the end of the pipe rack is significant, extending the pipe shoe or considering an expansion loop is crucial. Flexibility in branch connections should also be taken into account when managing high expansion, as multiple branch connections can become costly. The paragraph highlights the preference for using expansion loops on the main line and suggests considering loops for managing occasional forces like seismic loads.
📐 Calculating Expansion Loops for Effective Piping Design
This section explains the process of calculating the size of an expansion loop based on pipe diameter, length, and temperature data. A specific example is given, where a 24-inch pipe with a 42-meter length is evaluated at a high operating temperature of 343°C. The calculated expansion loop size is determined to be 9.1 meters in height and 13.7 meters in width. However, the height is found to be too long, leading to a recommendation for adding an additional expansion loop to reduce the height. This solution ensures that the expansion loop fits within the 6-meter-wide pipe rack, while also avoiding the need for costly structural additions.
🔍 Final Considerations for Expansion Loop Design
The final paragraph summarizes the key points about expansion loop design. It reiterates the importance of inspecting pipe rack ends to evaluate expansion and advises considering expansion loops only when necessary for economic reasons. Expansion loops should be designed in coordination with nearby lines, ensuring that their size remains manageable and fits within the pipe rack. The paragraph concludes by advising engineers to keep expansion loops inside the rack to avoid unnecessary costs.
Mindmap
Keywords
💡Piping Expansion Loops
💡Thermal Expansion
💡Flexibility Check
💡Line Stop
💡Pipe Shoe
💡Branch Connections
💡Seismic Loads
💡Anchor Points
💡Pipe Rack
💡Expansion Loop Formula
Highlights
Introduction to piping expansion loops and their importance in piping systems.
Explanation of why a flexibility check is important for lines on long pipe racks, particularly for pipes carrying high-temperature fluids.
Recommendation to use a line stop at the center or the 'native zero' point of the line to control or prevent excessive expansion.
Guidance on inspecting the expansion distance at the end of pipe racks and adjusting pipe shoes accordingly to handle thermal expansion.
Suggestion to use an expansion loop if expansion is excessive and cannot be handled by pipe shoe length alone.
Advice on considering the flexibility of branch connections, especially at the far end of pipe racks, to accommodate expansion.
Emphasis on using an expansion loop in the main line if multiple branch connections are involved to avoid excessive costs.
Consideration of expansion loops in scenarios with occasional forces like seismic loads to distribute high loads on stopper supports.
Recommendation to locate expansion loops for multiple lines close to each other, with the largest loop placed outside the smaller loops.
Example calculation of the expansion loop size based on pipe diameter, length, and operating temperatures.
Discussion on adjusting loop dimensions if the calculated height is too long, suggesting the addition of extra loops to reduce height.
Explanation of how reducing the length between anchor points helps optimize the expansion loop size for a 6-meter-wide pipe rack.
Reminder to check whether expansion at the end of the pipe rack is economically feasible before deciding on an expansion loop.
Advice to design expansion loops in conjunction with nearby lines to ensure efficient and cost-effective placement.
Final tip to keep the expansion loop size manageable and within the limits of the pipe rack structure.
Transcripts
[Music]
[Music]
Welcome to our guide on piping expansion loops we'll discuss the technical details
of this important component and Empower Engineers with the knowledge to design
effective expansion Loops we'll provide expert tips and tricks
based on industry experience to optimize the performance of expansion Loops join us
as we explore the expansion loops and enhance your understanding of piping
systems it is important to perform a flexibility check on the lines
situated on Long pipe racks especially for pipes that transport fluids with high
temperatures these lines tend to cause excessive expansion at the end of the
pipe racks to prevent or control this expansion a line stop is essential at
the center of the line or the native 0 point of the line where the expansion is
zero
after that you need to inspect the expansion distance at the end of the pipe racks if the
expansion at the far end of the Pipe Rack is enough to handle the length of the pipe shoe
should be kept longer to accommodate thermal expansion growth however if the expansion
is too long you should consider it design that includes an expansion Loop also it's important to
take into account the flexibility of the branch connections especially at the far end of the
[Music]
racks if the main Line's expansion is high you may need to reconsider the branch connection design to
make it more flexible or install an expansion Loop if you have multiple Branch connection
this could end up being quite costly for you it is preferable to use an expansion loop on
the main line instead in some cases you can consider using an expansion Loop to account
for occasional forces especially seismic loads in case the seismic loads on the stopper support
are high we can divide the load by using an expansion loop on the rack when designing an
expansion Loop consider all the lines that require an expans expansion Loop should be located close
to each other the largest expansion Loop must be located outside the other loops with less
[Music]
growth this equation can be used to determine the size of the expansion
Loop in in this example the pipe diameter of the line is 24 in the length is 42 M the operating
temperature of the line is 343 de C and the ambient temperature is -7° C let's find the
height and width of the expansion Loop once we put the figures in the formula we will figure
out that the height is 9.1 M and the width is 13.7 M comparing the existing length with the
calculated expansion Loop sizes we can see that the height is too long preferably the height
value should be a bit longer than the Pipe Rack width so we should add one more expansion Loop
to reduce the height of the loop this means that the length between the anchors will be
reduced to half let's see though the width of the reduced height is suitable for a 6 M wide
pipe rack we will consider that the length between the anchor points is reduced to half which is 21
1 M by applying the change in the formula the height is 6.5 M and the maximum width is 9.7
m in this case adding two expansion Loops will suffice for a 6 M wide pipe rack otherwise we
would need additional structure to support the expansion Loop which would be costly in terms of
construction
in summary before we decide on an expansion Loop we should inspect the Pipe Rack ends to see the
level of expansion an expansion Loop can only be considered if expansion at the end of the rack is
uneconomical to eliminate the piping expansion Loop design should be considered together with
the nearby lines finally the expansion loop size should not be so long try to keep it inside the
[Music]
rack thank you for watching please subscribe to piping stress. net
hit the like button and turn on the notifications for the next
videos
تصفح المزيد من مقاطع الفيديو ذات الصلة
Plumbing Rough In – What is a Plumbing Stack (EP8) - 2023
Pipe Rack Design for Piping : Essential Tips for Piping Engineers
Piperack Loading | Different pipe Loads on Piperack | Piping Mantra |
Linear Expansion of Solids, Volume Contraction of Liquids, Thermal Physics Problems
Inside the Restaurant of the Future / Ben Calleja (LIVIT) speaks at RestaurantSpaces
Introduction to Lexical Analyzer
5.0 / 5 (0 votes)